August in Bangkok is wet. That's the headline. With 222mm of rainfall spread across roughly 26 days, you're looking at one of the rainiest months of the year — only September is worse. But here's the thing most guides won't tell you: it rarely rains all day. The pattern tends to be hot, sticky mornings followed by a dramatic afternoon downpour that lasts maybe an hour, sometimes less. The sky cracks open, the streets flood briefly around Sukhumvit and Silom, and then it's over. The air actually feels cooler afterward, which is a genuine relief when humidity is sitting at 81%. Temperatures hover around 31.8°C (89°F) during the day and drop to about 25.4°C (78°F) at night — not as punishing as April's inferno, but the moisture in the air makes everything feel heavier.
So should you come? That depends on what you're after. August is firmly in the green season — Bangkok's version of low season — which means hotel rates drop noticeably, temples and palaces are far less packed, and you can get a table at restaurants that have month-long waitlists in December. The city doesn't shut down. Thais live through this weather every year and the restaurants, malls, and markets keep running. You'll share the sidewalks with fewer tour groups, and the locals who are out tend to be more relaxed. The trade-off is real, though: some outdoor plans will get rained out, river tours can be choppy, and the Chao Phraya runs brown and high.
If you're the kind of traveler who melts at the first sign of humidity, or if your entire trip hinges on perfect outdoor weather, August is going to frustrate you. But if you're flexible, comfortable ducking into a covered market or a mall when the sky opens up, and motivated by lower prices and thinner crowds — August has its own charm. The city feels more like itself, less like a performance staged for tourists.
Why visit in August
- Hotel rates drop 30-40% from peak season (November-February), and you can often negotiate further discounts for stays longer than three nights
- Major temples like Wat Pho and the Grand Palace have noticeably shorter queues — you might have entire gallery halls to yourself on a weekday morning
- The lush greenery is at its peak after months of rain; Lumpini Park and Bang Krachao are almost impossibly green, a completely different visual from the dry-season brown
- Street food vendors are still out in full force, and some wet-market stalls carry produce you won't find during dry months — the rain keeps the farms productive
- Bangkok's indoor attractions — malls, museums, cooking classes, spas — are excellent, and low season means better availability and sometimes discounted packages
Worth knowing
- Rain is nearly a daily certainty: 26 out of 31 days see some precipitation, and while showers are typically brief, they can occasionally stretch into multi-hour downpours that flood low-lying streets around Sukhumvit Soi 1-20 and parts of Silom
- Humidity at 81% means you'll be damp from sweat even when it's not raining — anything left in your bag without silica packets will start to smell musty within days
- The Chao Phraya River runs high and muddy, which diminishes the appeal of river cruises and some waterfront dining spots along the Maharaj Pier area
- Some outdoor day-trip destinations like the floating markets at Damnoen Saduak and Amphawa can be less pleasant when rain turns walkways slippery and the canal water rises
Best for
Think twice if
August sits in central Bangkok's monsoon season. Expect overcast mornings that build into afternoon thunderstorms, usually between 2pm and 5pm. The rain is warm — not the cold, cutting rain of a European autumn — and it comes down hard and fast. You'll hear it on tin roofs before you feel it. The temperature stays relatively consistent day to day: highs around 31.8°C (89°F) and lows near 25.4°C (78°F). What makes it feel worse is the 81% humidity. The air has a weight to it, a thickness you notice the moment you step out of any air-conditioned space. Mornings before the rain can actually be pleasant for walking, along the river near Tha Tien, where there's sometimes a breeze. Nights cool down just enough to make outdoor dining bearable, at rooftop spots where you're above the street-level humidity trap.
Seasonal caution
- Monsoon rainfall averaging 222mm across 26 rainy days can cause flash flooding in low-lying areas, around lower Sukhumvit, parts of Silom, and older neighborhoods in Thonburi — check local news if rain has been sustained for several hours
- Humidity at 81% combined with 32°C heat produces a heat index that can feel like 38-40°C (100-104°F) — heat exhaustion is a real risk if you push through midday without shade and water
- Sudden downpours reduce visibility on roads and make sidewalks slippery, around temple complexes with polished stone surfaces
Year-round climate
Averages from the last 5 years.
| Month | Avg high (°C) | Avg low (°C) | Rainfall (mm) |
|---|---|---|---|
| Jan | 32 | 22 | 12 |
| Feb | 33 | 24 | 54 |
| Mar | 34 | 26 | 59 |
| Apr | 34 | 27 | 88 |
| May | 33 | 26 | 199 |
| Jun | 33 | 26 | 163 |
| Jul | 31 | 26 | 255 |
| Aug | 32 | 25 | 222 |
| Sep | 31 | 25 | 339 |
| Oct | 31 | 24 | 233 |
| Nov | 31 | 24 | 108 |
| Dec | 32 | 23 | 14 |
Headline events
Queen Sirikit's Birthday / Thai Mother's Day
August 12
August 12 is a national holiday honoring Queen Sirikit, and it doubles as Thailand's Mother's Day. The city decorates with blue lights and portraits — Ratchadamnoen Avenue in particular gets a striking blue illumination. Government buildings, malls, and temples hold merit-making ceremonies. It's not a loud, party-style festival, but there's a quiet, respectful energy across the city. Many Thais wear light blue clothing to mark the day, and you'll see families gathering at temples for morning alms-giving. Some government offices and banks close, but tourist areas stay open.
Best things to do in August
Thai cooking classes with market tours
culinaryRainy season is the best time to book a cooking class because availability opens up and group sizes shrink. Most half-day classes start with a guided walk through a wet market — Khlong Toei or Or Tor Kor — where you pick your own ingredients. The rain keeps markets cooler than usual, and the seasonal produce selection in August is different from what you'd find in February. You'll work with ingredients like fresh mangosteen, young coconut, and herbs that are at their most aromatic.
Smaller class sizes due to low season, plus seasonal ingredients like fresh galangal and kaffir lime at peak fragrance. The morning market walks are more comfortable before the afternoon rain.Booking tipBook 3-5 days ahead for weekend sessions. Weekday classes often have spots available same-day.
Spa and wellness days
wellnessBangkok's spa scene ranges from 200-baht foot massages on Khao San Road to full-day wellness programs at five-star hotel spas. In August, the contrast between the humid outdoor air and a cool, jasmine-scented treatment room feels like a genuine reward. Many hotel spas — along the river at properties like the Mandarin Oriental and Peninsula — offer green-season packages with significant discounts on multi-treatment bookings.
Green-season discounts at luxury spas can cut prices 20-30%. The humidity makes the contrast between outdoor and indoor spaces feel almost therapeutic. Rain afternoons are good for a two-hour treatment rather than fighting wet streets.Booking tipRiver-side hotel spas fill up on weekends even in low season. Book 2-3 days ahead for Saturday slots.
Museum and gallery hopping
cultureBangkok's museum scene has expanded significantly, and August's rain gives you a reason to actually spend time in them. The Bangkok Art and Culture Centre (BACC) at the National Stadium BTS stop rotates exhibitions and has free entry to most floors. MOCA Bangkok in Chatuchak houses a serious collection of modern Thai art. The Jim Thompson House in the Siam area is a beautifully preserved teak compound that tells the strange story of the American silk magnate who disappeared in the Malaysian jungle.
Rain keeps you indoors anyway, and low season means fewer crowds at popular spots like the Jim Thompson House. Some galleries launch new exhibitions in August to coincide with the quieter period.Chinatown night food walks
foodYaowarat Road after dark is one of Bangkok's great sensory experiences. The neon signs reflect off wet pavement after an evening rain. Smoke rises from charcoal grills. The smell of roasted duck fat mixes with wok-fried noodles. August evenings, after the afternoon rain has cooled the air by a few degrees, are one of the more comfortable times to walk the strip. The crowds thin out compared to high season, and you can actually approach stalls without queuing.
Post-rain evenings are cooler and the wet streets create a distinctive atmosphere under Yaowarat's neon lights. Low-season crowds mean less queuing at popular stalls like the rolled ice cream vendors and the seafood grill spots near Soi Texas.Booking tipNo booking needed for street food. If you want a guided walk, small-group tours run most evenings and rarely sell out in August.
Chatuchak Weekend Market (indoor sections)
shoppingMost people think of Chatuchak as an outdoor market, and it is — but the indoor and covered sections are extensive and often overlooked. The vintage clothing zone, the home décor halls, and the art sections are all roofed. In August, you can spend hours in these covered lanes without getting rained on. The outdoor plant section is actually at its best during the rainy season, with sellers stocking tropical species that thrive in monsoon humidity.
The covered sections are comfortable even during rain, and the plant market peaks during monsoon months. Low-season crowds mean you can browse without being carried along in a stream of bodies.Booking tipGo early Saturday morning — by 8am — for the best selection and coolest temperatures. The market closes Sunday evening.
Rooftop bars at sunset
nightlifeAugust sunsets in Bangkok can be spectacular. The monsoon clouds build into towering formations that turn gold and pink as the sun drops behind them. On a clear evening — and there are clear evenings, even in monsoon season — the view from rooftop bars like Sky Bar at Lebua, Octave at the Marriott Sukhumvit, or the quieter Above Eleven on Sukhumvit Soi 11 is hard to beat. The warm, slightly cooled post-rain air adds to the experience.
Monsoon cloud formations create dramatic sunset backdrops that you simply don't get during the clear, hazy dry season. Green-season prices at some rooftop venues mean cheaper drinks or waived cover charges.Booking tipSky Bar doesn't take reservations for the bar area — arrive by 5:30pm for the best spots. Restaurant reservations at Sirocco upstairs should be made a week ahead.
Day trip to Bang Krachao
outdoorCalled Bangkok's green lung, this river island in a bend of the Chao Phraya is accessible by a short ferry from Klong Toey pier. In August, after months of rain, the foliage is thick and almost jungle-like. You rent a bicycle and follow elevated concrete paths through mangroves, past small temples, and along canals. The Sri Nakhon Khuean Khan Park at the center of the island has a tree canopy that keeps you relatively dry even during light rain.
The greenery peaks in August after months of monsoon rain. The canopy cover provides natural shelter from light showers, and the temperature under the trees runs noticeably cooler than the concrete city across the river.Booking tipBring your own water and snacks. Bike rental is available at the ferry pier on the Bang Krachao side — no booking needed, but go on a weekday to avoid weekend cycling groups.
Thai boxing at Rajadamnern Stadium
entertainmentRajadamnern Stadium near Democracy Monument hosts Muay Thai bouts several evenings a week. The atmosphere inside is intense — the rhythmic pip music, the smell of liniment, the roar when a fighter lands a clean kick. This is not a tourist show; these are real competitive bouts. August is a fine time to go because the stadium is indoors and air-conditioned, and low-season means ringside seats are easier to come by.
Indoor and air-conditioned, making it a perfect rainy-evening activity. Low season means better seat availability, including ringside spots that sell out months ahead during peak tourist season.Booking tipBuy tickets directly at the stadium box office on fight day, or through your hotel concierge. Avoid third-party touts outside who mark up prices significantly.
What to eat in August
In season: fruit
Mangosteen
August is peak mangosteen season in Thailand. The thick purple rind cracks open to reveal soft, white segments with a sweet-tart flavor that's hard to compare to anything else. Wet markets in Chinatown and along Khlong Toei sell them by the kilo for a fraction of what you'd pay for imported ones anywhere else. Pick fruits that feel slightly soft when squeezed — rock-hard ones aren't ready.
Longkong (Langsat)
These small, translucent fruit clusters appear at market stalls across Bangkok starting in August. The flesh is juicy and mildly sweet with a citrus edge. You peel them like tiny oranges. Watch out for the occasional bitter seed — locals spit those out reflexively. Or Tor Kor Market near Chatuchak tends to have the best-graded longkong.
Rambutan
Red and hairy on the outside, sweet and grape-like inside. Rambutan peaks in Thai markets from July through September. The texture is somewhere between a lychee and a grape — slightly firmer, with a sweetness that varies by variety. The Rongrien cultivar, recognizable by its green-tipped spines, tends to be the sweetest. Street vendors sell bags of them for practically nothing.
On menus now
Kanom Jeen Nam Ya
Rice noodles in a thick, aromatic fish curry sauce. This is a dish that shows up at temple fairs and street stalls year-round, but during the rainy season it feels right — warm, filling, slightly medicinal from the herbs. The version served at temple fairs near Wat Saket during August merit-making days is the real thing: made in bulk by temple volunteers, served on banana leaves.
Tom Yum Goong
The rainy season brings a slight chill to Bangkok evenings — enough to make a bowl of sour-spicy shrimp soup feel essential rather than optional. Galangal, lemongrass, and kaffir lime leaves are at their most fragrant during the wet months. Street stalls in the Ari neighborhood and along Charoen Krung serve versions that would be hard to replicate outside Thailand.
Street food peaks
Khao Tom Mat
Sticky rice parcels steamed in banana leaves with banana and sometimes taro or black bean. These appear more frequently during the rainy season at morning markets and temple fairs. The banana leaf wrapping gives the rice a faintly herbal, grassy smell when you peel it open. They're meant as breakfast or a quick snack, and they're filling enough to carry you through a morning of temple visits.
Regular events in August
Asanha Bucha DayFree
A major Buddhist holiday marking the Buddha's first sermon. Temples across Bangkok hold candlelit processions (Wien Thien) in the evening, where worshippers walk clockwise around the main chapel holding candles, incense, and lotus flowers. Wat Benchamabophit (the Marble Temple) and Wat Saket host atmospheric ceremonies. Falls on the full moon day of the eighth lunar month — typically late July or early August.
Late July or early August (lunar calendar)Khao Phansa (Buddhist Lent begins)Free
The day after Asanha Bucha marks the start of Buddhist Lent, a three-month period when monks retreat to their monasteries. Candle festivals happen across the country, though Bangkok's are smaller than Ubon Ratchathani's famous event. Many Thais use this period to make merit, give up alcohol, or commit to personal goals. Some restaurants and bars in more traditional neighborhoods see a brief dip in alcohol sales.
Day after Asanha Bucha (late July or early August)Queen Sirikit's Birthday celebrations and eventsFree
Beyond the national holiday on August 12, various cultural venues and shopping malls stage exhibitions and performances throughout the week. Ratchadamnoen Avenue is decorated with blue lights, and the area around Sanam Luang hosts small merit-making events. Central World and Siam Paragon typically mount blue-themed decorations and sometimes host charity events.
August 12 and surrounding daysBangkok International Film Festival screenings
While the main festival varies in scheduling, August often sees curated film screenings at venues like the Bangkok Art and Culture Centre and House RCA. Independent Thai cinema and Southeast Asian films feature prominently. Check local listings at BK Magazine or the BACC website for current programming.
Varies — check local listingsBest places this August
Lumpini Park
parkBangkok's largest central park is at its greenest in August. The rain keeps the lawns lush and the monitor lizards active — you'll spot them sunning on the banks of the artificial lake. Early morning, before 7am, the park fills with locals doing tai chi, jogging, and practicing dance routines. The tree cover provides decent shelter during light rain, and the post-rain air in the park smells noticeably cleaner than the surrounding streets.
Silom / SathornOr Tor Kor Market
marketConsistently rated one of the best fresh markets in the world. In August, the seasonal fruit section is stacked with mangosteen, longkong, rambutan, and durian at competitive prices. The prepared food stalls in the back serve dishes like green papaya salad, grilled pork neck, and coconut-based curries that are as good as any restaurant in the city. The market is fully covered, making it a reliable rainy-day option.
ChatuchakJim Thompson House Museum
museumA cluster of traditional Thai teak houses filled with Southeast Asian art, assembled by the American silk entrepreneur who vanished in 1967. The lush garden surrounding the houses peaks in monsoon season, and the shaded, air-conditioned interiors make it a comfortable August stop. The guided tour is informative without being tedious, and the on-site restaurant overlooking the canal is a quiet retreat.
SiamWat Arun at dawn
templeThe Temple of Dawn is best visited at actual dawn in August — around 6:00-6:30am — before the heat and humidity build. The morning light on the porcelain-tiled prang is softer during the monsoon months, and the river mist occasionally adds an atmospheric haze. By 9am the compound is already hot and crowded. The ferry across from Tha Tien pier costs almost nothing and the ride itself is part of the experience.
ThonburiTalat Noi neighborhood
neighborhoodThis small Chinatown-adjacent area along the river has evolved into one of Bangkok's most interesting street art districts. The narrow lanes, old shophouses, and waterfront shrines are atmospheric in the rain — the wet walls and reflections add a photographic quality that dry weather doesn't offer. There are a handful of independent coffee shops and small galleries tucked into former warehouses. Less touristed than Yaowarat, even in peak season.
SamphanthawongMuseum of Contemporary Art (MOCA)
museumA private collection of modern and contemporary Thai art housed in a large, well-designed building near Chatuchak. The collection ranges from traditional-influenced paintings to provocative contemporary installations. It's fully air-conditioned, rarely crowded, and large enough to spend two to three hours in. Pair it with a visit to Chatuchak or Or Tor Kor Market, which are both nearby.
ChatuchakKhlong Bang Luang floating market and artist village
marketA small, low-key floating market on the Thonburi side of the river that operates on weekends. Unlike the tourist-heavy Damnoen Saduak, this one is mostly visited by Thais. The adjacent artist village has galleries in old wooden houses along the canal. In August, the canal water is high and the boats sit closer to the walkway, which actually makes it easier to buy from vendors. The puppet theater here performs traditional Thai puppet shows on weekend afternoons.
Thonburi
Your packing checklist
Tick items off as you pack. Your progress saves in this browser.
Insider tips
The BTS Skytrain and MRT subway are your best friends in August — not just for transit, but as air-conditioned corridors between attractions. Plan your route station to station and you can minimize time in the rain and heat. The covered walkways connecting BTS stations to major malls (Siam, Asok, Chit Lom) let you walk for blocks without stepping outside.
The afternoon rain usually follows a predictable pattern: clouds build from around 1pm, rain hits between 2-4pm, and clears by 5pm. Schedule outdoor activities for morning (before 11am) and evening (after 5pm), and use the 2-4pm window for indoor attractions, spa visits, or a long lunch.
Or Tor Kor Market near Chatuchak is where Bangkok's serious home cooks shop. The fruit here is graded and priced higher than street vendors, but the quality difference is noticeable — with mangosteen and durian. It's also fully covered and air-conditioned in sections, making it a reliable rainy-day destination.
If you're staying near the river and want to cross to Thonburi side, the small cross-river ferries at Tha Tien and Si Phraya piers cost under 10 baht and run constantly. They're faster and cheaper than the tourist-oriented river boats, and they drop you right at Wat Arun or the Thonburi canal networks.
Download the Grab app before you arrive. Regular taxis still refuse fares during rain (they know they can charge more for waiting passengers), but Grab locks in the price before pickup. Increase pricing exists but it's still more reliable than arguing with a cab driver who won't turn on the meter.
Avoid these mistakes
- Scheduling a full day of outdoor temple visits without accounting for the afternoon rain. By 2pm you'll either be soaked or trapped under a temple overhang waiting it out. Front-load temple visits before 11am and save indoor activities for the afternoon.
- Wearing flip-flops or smooth-soled shoes on temple grounds and wet sidewalks. The polished stone and tile surfaces at the Grand Palace, Wat Pho, and Wat Arun become slippery when wet. Grippy sandals or shoes prevent a fall that could ruin your trip.
- Packing only cotton clothing. Cotton feels fine in air conditioning but turns into a damp, heavy layer the moment you step outside. It takes hours to dry in 81% humidity. Linen and synthetics are noticeably more comfortable.
- Assuming the rain ruins the day and staying in your hotel. The showers are usually brief, and Bangkok after the rain — cooler air, wet streets reflecting neon, steam rising from food carts — is its own experience. Some of the best meals and photographs happen in the hour right after a downpour.
Practical tips for August
August 12 is a national holiday (Queen Sirikit's Birthday / Mother's Day), so government offices and some banks close. Most tourist areas, malls, and restaurants stay open. Alcohol sales are banned on Asanha Bucha Day and Khao Phansa (usually late July or early August) — bars and restaurants cannot serve alcohol on these Buddhist holidays, so check the exact dates before planning a night out. The BTS and MRT run on normal schedules throughout August, but expect crowded cars during morning and evening rush hours as office workers avoid the rain. Grab is more reliable than street taxis during rain — drivers are more willing to pick up, and the fare is fixed in advance. Book any spa or cooking class for weekends at least a few days ahead, as low season doesn't mean empty — domestic tourists and Bangkok residents fill these slots. Dress modestly for temple visits: knees and shoulders covered, no see-through wet clothing. Carry a small towel in your day bag for wiping sweat and drying off after sudden rain. Most malls have free Wi-Fi, and True and AIS sell tourist SIM cards at the airport for under 300 baht with generous data allowances — connectivity is not an issue.
FAQ
Is August a good time to visit Bangkok?
It's a fair time — not the best, not the worst. You'll deal with near-daily rain and high humidity, but you also get significantly lower hotel prices, fewer tourists, and a city that feels more authentically itself. If you're flexible about outdoor plans and comfortable with spontaneous schedule changes when rain hits, August can be a rewarding time. If you need predictable sunny weather for outdoor sightseeing, aim for November through February instead.
What is the weather like in Bangkok in August?
Expect average highs around 31.8°C (89°F) and lows near 25.4°C (78°F) with 81% humidity. Rainfall averages 222mm across about 26 rainy days. The rain typically falls in heavy afternoon bursts rather than all-day drizzle — mornings are usually dry but overcast, and evenings often clear up. The heat itself is less intense than March-April, but the humidity makes it feel worse than the numbers suggest.
Does it rain all day in Bangkok in August?
Almost never. The typical pattern is a buildup of clouds through the late morning, a heavy downpour between roughly 2pm and 4pm, and clearing skies by early evening. Some days you might get a morning shower or an evening storm, but full-day rain is uncommon. The showers are intense but brief — thirty minutes to an hour is typical. Flooding in low-lying areas can linger longer than the rain itself.
Is Bangkok crowded in August?
No — August is solidly in the green (low) season. European and North American tourists are fewer in number, though you'll see some families taking advantage of school holidays. Chinese and Korean tourist numbers also dip. Temples, palaces, and popular restaurants have noticeably shorter waits. The exception is around August 12 (Mother's Day), when domestic travel picks up briefly around the long weekend.
Can you drink alcohol in Bangkok in August?
Yes, for most of the month. The exception is Asanha Bucha Day and the start of Khao Phansa (Buddhist Lent), which fall in late July or early August depending on the lunar calendar. On these Buddhist holidays, alcohol sales are banned nationwide — bars close or stop serving drinks, and restaurants and convenience stores won't sell alcohol. The dates change annually, so check the Thai lunar calendar for the exact days before planning a night out.
Last verified by automated review (v1.7.1) on May 26, 2026. What is automated review?