Best Time to Visit Hangzhou, by Season

1 The Year Splits in Two: Hangzhou's Climate Reveals a Narrow Comfort Zone

Walk along West Lake's northern shore on an April morning and the air sits at about 22.9°C. Light enough for a jacket. Warm enough to linger on the bench. The willow branches carry the smell of fresh tea roasting in the hills above Longjing village, and the stone path underfoot is dry for the first time in weeks. This is Hangzhou near its best, and it lasts roughly six weeks. The rest of the year asks you to negotiate.

Hangzhou's 5-year daily-observation averages tell a blunt story. January's high reaches 11.2°C, with lows of 1.2°C. February barely moves, at 11.5°C and 3.3°C. March breaks upward to an 18.1°C high. Then April lands at 22.9°C and May pushes to 26.6°C, already warm enough to sweat on the causeway. June hits 29.3°C as the plum rains arrive. July and August are the furnace months, averaging 34.0°C and 34.7°C respectively, with overnight lows of 26.3°C and 26.2°C that never let the air cool. September still reaches 30.1°C. October settles to 24.1°C. November drops to 18.7°C. December returns to 11.9°C.

Two windows emerge from that curve. The first runs from late March through late April, when highs sit between 18.1°C and 22.9°C, the humidity has not locked in, and the lakeside paths are walkable all day. The second runs from mid-October through mid-November, when temperatures fall from 24.1°C to 18.7°C and the camphor trees turn color. Everything else is too hot, too wet, too cold, or all three.

Two windows emerge from that curve. Everything else is too hot, too wet, too cold, or all three.

2 March Through May: The Spring Window Is Real, but April Owns It

The smell hits first. By mid-March, the tea hills above Meijiawu village are firing up their woks for the season's first Longjing harvest. Hangzhou has jumped from February's 11.5°C high and 3.3°C low to March's 18.1°C, a leap of nearly 7 degrees in average highs. The lakeside paths dry out. The plum blossoms at Gushan Island are finishing and the cherry trees along Bai Causeway are starting.

March is livable but cool. An average low of 8.2°C means mornings still need layers, and occasional cold snaps can pull temperatures lower. You'll find fewer visitors than in April, and hotel rates tend to sit below spring peak. For photographers, the bare branches against West Lake's morning mist make March's first two weeks a strong window.

April is the month. Highs average 22.9°C, lows settle at 13.2°C. That range is close to ideal for walking, and Hangzhou is a walking city. The Su Causeway stretches across West Lake. In April you can cover it at midday without overheating. By May, when highs reach 26.6°C and lows climb to 17.3°C, that same walk at noon leaves you damp.

Worth noting, though. April is when domestic tourism peaks in Hangzhou. The Qingming Festival in early April floods the Ten Scenic Spots of West Lake. If you want April's 22.9°C highs without the congestion, aim for the last ten days of the month, after the holiday wave clears. That said, even a crowded April is better than an empty August at 34.7°C.

May is the fade. Highs of 26.6°C are still workable, but humidity builds noticeably toward the end of the month. Evenings cool to 17.3°C, still comfortable for lakeside dining, but the heaviness in the air announces June's plum rains.

Even a crowded April is better than an empty August at 34.7°C.

3 June's Plum Rains Turn Every Outdoor Plan into a Gamble

You hear the rain before you see it. June in Hangzhou begins with the méiyǔ, the plum rain season that wraps the Yangtze Delta in humidity that feels like breathing through a warm, damp cloth. Average highs reach 29.3°C, and lows sit at 22.0°C, which means the air never truly cools after dark. The step up from May's 26.6°C high looks modest on paper. In practice, the saturated air makes June feel far heavier than the numbers suggest.

West Lake in the rain is genuinely beautiful. Mist erases the modern skyline and the lotus leaves carry beads of water that catch whatever light breaks through. Some photographers target early June for this. But the trade-off is real. Those same conditions make every outdoor plan provisional. An afternoon at Lingyin Temple can become two hours under a dripping eave. The trails above the lake, Hangzhou's best feature during spring, turn slippery and oppressive at June's 29.3°C with saturated air.

The plum rains typically run from early June through mid-July. June sits entirely within the wet window. Hotel prices tend to drop from April's peak, which makes June look tempting for budget travellers. But you're saving on accommodation only to spend your days rearranging plans around downpours.

Compare the numbers directly. April gives you 22.9°C highs and 13.2°C lows with comfortable air and the city's best natural light. October offers 24.1°C and 15.9°C with dry skies. Both alternatives are substantially more pleasant than June's 29.3°C and 22.0°C in the rain. June works only if your calendar allows no other month. Mind you, the lakeside teahouses are among Hangzhou's quieter pleasures during the rains, and a tea-focused indoor trip at lower room rates has its own logic for travellers who care more about the leaf than the scenery.

You're saving on accommodation only to spend your days rearranging plans around downpours.

4 July and August Average 34°C. The City Empties for a Reason

Step out of Hangzhou East Railway Station in late July and the heat meets your face like a wall. The platform shimmers. By mid-morning, the stone paths around West Lake radiate enough stored heat to feel through your shoes. July's average high is 34.0°C. August's is 34.7°C, the year's peak. Neither month's overnight lows drop below 26°C. July settles at 26.3°C, August at 26.2°C. There is no relief after dark.

These are not abstract figures. At 34.0°C with Hangzhou's summer humidity, the city earns its historical mention alongside Nanjing, Wuhan, and Chongqing as one of the Yangtze basin's notorious summer furnaces. Locals respond by leaving. Moganshan, a hill station north of the city, fills with Hangzhou families escaping the basin heat. Thousand Island Lake draws another crowd. The pattern is plain. If residents who have excellent air conditioning still choose to leave, the weather is telling you something.

That said, July and August tend to offer the lowest hotel rates of the tourist year and the thinnest crowds at every site. If your budget is tight and you handle heat well, a short visit can work. Focus on early mornings, when temperatures hover closer to the 26.3°C overnight floor. The China National Silk Museum and other indoor sites function in any weather. But plan for long, idle afternoons.

The compelling math sits in the comparison. September's high drops to 30.1°C, still hot but a different category from July's 34.0°C. October falls to 24.1°C. Shift your trip by six weeks, from August's 34.7°C into October's 24.1°C, and you gain over 10 degrees of daily comfort. That gap, from 34.7°C to 24.1°C, is the single largest quality-of-life improvement available on the Hangzhou calendar.

If residents who have excellent air conditioning still choose to leave, the weather is telling you something.

5 Late October Through Mid-November Is Hangzhou's Best-Kept Window

The camphor trees along Nanshan Road turn first. By late October, Hangzhou's average high has dropped to 24.1°C, and the lows settle at a manageable 15.9°C. The air loses its summer weight. West Lake's surface, which spent July and August glaring under 34.0°C and 34.7°C skies, returns to the soft grey-green that earned it UNESCO World Heritage status.

This is the window most international visitors miss. The domestic tourism calendar focuses on Golden Week, the October 1-7 national holiday, which packs West Lake shoulder to shoulder. Avoid those first seven days entirely. By mid-October, the crowds drain, the temperatures hold near 24.1°C, and you get something close to Hangzhou's ideal conditions.

November extends the opportunity. Average highs of 18.7°C and lows of 9.5°C make it cooler than October but still comfortable for full days outdoors. The foliage peaks. The ginkgo trees near Beishan Road turn gold against the grey lake. At 18.7°C, this is sweater weather, not coat weather, and the difference matters when you spend your days walking the lakeside paths.

To be fair, November carries a trade-off. Daylight shortens, and by late November temperatures trend toward December's 11.9°C high. The last week of the month can feel like early winter. Aim for November 1 through November 20 to stay inside the sweet spot.

Compare the alternatives. April gives you 22.9°C highs and 13.2°C lows with cherry blossoms but peak crowds. October's second half gives you 24.1°C and 15.9°C with thinner crowds and autumn color. For most visitors, late October wins on balance. You get April-comparable temperatures, fewer people, and accommodation prices below the spring peak. If you can visit Hangzhou only once, the week of October 20 through October 27 likely represents the single best seven days of the year, with highs near 24.1°C, lows near 15.9°C, and post-Golden-Week calm.

At 18.7°C, this is sweater weather, not coat weather, and the difference matters.

6 December Through February Is Cold and Cheap. Know What You Are Buying

West Lake's stone bridges catch frost on January mornings. The air feels sharp at an average low of 1.2°C, and the few tourists around wear the same padded jackets as the locals selling roasted sweet potatoes along Hubin Road. January's high reaches only 11.2°C. February barely differs, at 11.5°C high and 3.3°C low. December sits at 11.9°C and 2.6°C. For three months, Hangzhou operates in a narrow band between 11°C and 12°C during the day and between 1°C and 3°C overnight.

This is not the cutting dry cold of Beijing or Harbin. Hangzhou rarely sees snow. But the damp cold of the Yangtze Delta has a penetrating quality that northern China's dry winters do not share. Indoor heating in Hangzhou tends to be less aggressive than above the historical heating line. Some restaurants rely on portable space heaters. You feel the chill even sitting inside a teahouse.

The upside is real. Winter is Hangzhou's lowest season for tourism. Lingyin Temple, which draws long queues in April and October, is walkable in January without any wait. The teahouses along West Lake's north shore sit quiet. Hotel prices drop to their annual floor.

For budget travellers who tolerate cold and pack properly, the December-through-February window has a specific appeal. Hangzhou's indoor sites, its silk and tea museums, its temple halls, its restaurant scene along Hefang Street, all function in any temperature. The Longjing tea villages above the lake are dormant in winter, but the ridgeline above Meijiawu is free of summer haze and you can see clean across the valley.

The honest assessment of winter. At January's 11.2°C highs and 1.2°C lows, each day revolves around heated interiors with short outdoor stretches. February's 11.5°C and 3.3°C offer almost the same experience. That is a legitimate trip for the right person, but it is not the trip most people picture when they book Hangzhou.

7 Five Travellers, Five Different Best Weeks, No Hedging

There is no single best time to visit Hangzhou. The answer depends entirely on what you weigh most. Here are five verdicts built from the same climate data, each pointing to a different window.

The comfort-first traveller. Late April, roughly April 18 through April 25. Average highs of 22.9°C, lows of 13.2°C. The Qingming crowds have thinned. The humidity has not arrived. West Lake sits under clean spring light, and every outdoor hour from dawn to dusk is usable. This is the consensus pick. You pay peak-season prices for it.

The budget traveller. Early to mid-January. Highs of 11.2°C, lows of 1.2°C. Bring layers. Hotel rates hit their annual floor. Lingyin Temple without queues. The teahouses along the north shore without waits. You're buying a real Hangzhou experience at the lowest possible price, with the trade-off written plainly on the thermometer.

The photographer. Early March, roughly March 5 through March 15. Highs of 18.1°C, lows of 8.2°C. Plum blossoms are finishing along the Su Causeway. Mist sits heavy on West Lake in the mornings and the light has a soft quality that April's clearer skies do not replicate. Fewer visitors means fewer bodies in your compositions. The 8.2°C morning cold is uncomfortable but photographically productive.

The crowd-averse traveller. November 1 through November 15. Highs of 18.7°C, lows of 9.5°C. Golden Week is well past. Ginkgo foliage near Beishan Road is peaking. Domestic tourism drops between the October holiday and the next travel wave. November's 18.7°C high is close to March's 18.1°C, but the autumn air tends to be drier and the late-afternoon light sits warmer on the lake.

The family with young children. Late October, roughly October 18 through October 28. Highs of 24.1°C, lows of 15.9°C. Warm enough that kids skip the heavy coats, cool enough to avoid overheating on the causeway walks. Compare this to July's 34.0°C highs and 26.3°C overnight lows, where outdoor time with children becomes a heat-management exercise. Late October is the only window where weather, crowds, and family logistics all converge.

One month to avoid above all. August, at 34.7°C high and 26.2°C low. No argument exists in its favor that September's 30.1°C or October's 24.1°C does not answer better.

Late October is the only window where weather, crowds, and family logistics all converge.