What should I avoid in Bangkok?

The tuk-tuk is Bangkok's most reliable way to overpay. Drivers stationed outside the Grand Palace and Wat Pho quote 150-300 baht for trips that cost 40-60 baht by meter taxi. Most will claim your destination is closed for a ceremony, then offer a redirect to a gem shop on Charoen Krung Road. Each delivery earns the driver a 50-100 baht fuel coupon from the shop. Those gems are glass, marked up to 10,000-50,000 baht. This circuit has operated since the 1990s and still catches people daily. Grab shows you the fare before you step in and runs about the same price as a metered cab. BTS Skytrain covers Sukhumvit, Silom, and Siam for 16-62 baht per ride, and the MRT subway connects Hua Lamphong to Chatuchak on the same fare scale. At roughly 33 THB to 1 USD, a full day on the BTS costs under 5 dollars.

Khao San Road draws first-timers on reputation alone. The 400-meter strip, laid out in 1892, now serves 80-100 baht pad thai that costs 40-50 baht at Thip Samai on Mahachai Road, a 12-minute walk east. Bucket cocktails from unlabeled bottles and sound systems competing past 11pm make the street sticky underfoot and loud enough to feel in your chest. Five minutes of people-watching is plenty. Safari World in Minburi still runs animal performance shows that most visitors find uncomfortable, and the 45-minute drive each way through northern Bangkok eats half a day. The Pattaya day-trip that drivers pitch at Don Mueang arrivals runs 1,500-2,000 baht per person for a six-hour round trip on a cramped minibus. You land at a concrete beach town 150 kilometers southeast when the Chao Phraya river sits 10 minutes from most BTS stations. Damnoen Saduak floating market, 80 kilometers southwest, is 90% tourist-facing and involves a two-hour drive each way.

Patpong Night Market sits between Silom Soi 2 and Soi 4, with a 200-meter stretch of t-shirt stalls and knockoff watches at ground level. The second-floor bars above the stalls on Patpong Soi 1 operate differently. A tout on the stairs promises a free show or a single 100-baht drink. The bill arrives at 3,000-5,000 baht, enforced by staff who stand in the stairwell. This targets people who wandered in from the night market below. Silom proper, one block south, has rooftop bars with posted menus. Sky Bar at Lebua State Tower charges 400-600 baht per cocktail, steep but honest, with the lit spire of Wat Arun visible across the river on clear nights. Worth noting, men in saffron robes along Ratchadamnoen Avenue sometimes approach tourists for cash donations. Real monks in Thailand do not solicit money from strangers.

September falls in the middle of Bangkok's monsoon season. Afternoon downpours tend to arrive between 2pm and 5pm, dropping 200-300mm over the month. The temperature currently holds near 30°C, but humidity above 65% pushes the feels-like reading past 36°C. You'll feel the heat as a damp weight on your skin the moment you step outside Suvarnabhumi's air-conditioned terminal. Sidewalks in Yaowarat and along lower Sukhumvit flood to ankle depth within 20 minutes of a heavy burst, the warm runoff carrying grit from the gutters. Pack shoes you can soak without ruining. Tap water in Bangkok is treated at the municipal plant but picks up sediment in old pipes, so sealed bottles from 7-Eleven at 7 baht are the safe choice. Mind you, street food vendors on Phra Athit Road use purified ice, recognizable by its hollow cylindrical shape. Solid chunks from an unmarked source are the ones to pass on.