Thailand
Bangkok in September
🌧️ Rainy seasonHot, humid and very wet. Watch for flood & storm risk.
🎒 Pack: light, breathable clothes & sunscreen · compact umbrella or rain jacket · quick-dry fabrics · waterproof sandals
Why September scores 6.0What goes into the score
How it works- Weather comfort4.8
- ✓Hot (33°C highs / 25°C lows)
- !Very humid/sticky (dew point 24.6°C)
- !Wet: ~336 mm rain, ~13 heavy-rain days
- Air quality8.6
- ✓Good (within WHO guideline) (PM2.5 ~14 µg/m³)
- Seasonal hazards5.5
- !Flood: seasonal flood risk (reviewed city profile)
- !Storm: seasonal storm risk (reviewed city profile)
- Safety baseline8.0
- ·Normal precautions
| Sep | Dec | |
|---|---|---|
| Score | 6.0 Fair | 8.4 Very good |
| Season | 🌧️ Rainy season | 🌤️ Cool season |
| High / low | 33° / 25° | 32° / 23° |
| Rain | 336 mm | 12 mm |
| Humidity | dew pt 25° | dew pt 20° |
| PM2.5 | 14 µg/m³ | 28 µg/m³ |
Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Bangkok weather-station normals. Rainfall: Bangkok Metropolis weather-station normals (national met service).
Holidays & crowdsSeptember 2027
No long holidaysNo long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.
No national public holidays in Thailand this month.
National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).
Explore BangkokEvents, sights, food & souvenirs
Thailand's capital on the Chao Phraya River: royal temples, canal neighbourhoods, night markets and some of the world's best street food.
No major events on our calendar for September.
Coming up later
Yaowarat Vegetarian Festival (Thetsakan Kin Che)Confirmed9–18 October 2026 (nine-day observance 10–18 Oct)
Nine days of the Chinese 'jay' observance: participants avoid meat and animal products, and Yaowarat fills with yellow flags, vegan food stalls and palanquin processions from 22 local shrines.
Why go: One of the best street-food nights of the year — everything is plant-based. Opening ceremony 10 Oct, 4–10 pm; the road closes to traffic for it.
Where: Yaowarat Road from the Chinatown Gate (Odeon Circle) to Lamphun Chai junction · The Nation, 5 Oct 2026
Loy KrathongDate variesFull moon of the 12th lunar month — expected around 24 November 2026
People float krathong — small baskets of banana leaf, flowers and candles — to give thanks to the water goddess.
Why go: A beautiful, family-friendly evening. Riverside spots get crowded; parks with lakes are calmer. Confirm the date with TAT nearer the time.
Where: Chao Phraya riverside (Asiatique, Iconsiam, Rama VIII Bridge), Lumphini and Benjakitti parks
Chinese New Year in YaowaratDate varies6 February 2027 (lunar new year; the date moves each year)
Lion and dragon dances, red lanterns and temple fairs along Yaowarat.
Why go: Very atmospheric but extremely crowded; go early evening.
Where: Yaowarat Road and Chinese shrines in Chinatown
Grand Palace & Wat Phra Kaew
The former royal residence and the Temple of the Emerald Buddha.
💡 Strict dress code (covered shoulders and knees). Go at 8:30 opening; ignore anyone outside saying it's closed.
Wat Pho
Home of the 46 m Reclining Buddha and Thailand's traditional massage school.
💡 A 10-minute walk south of the Grand Palace; massages inside the temple are reasonably priced.
Wat Arun
Riverside 'Temple of Dawn' covered in porcelain mosaics.
💡 Cross by the 5-baht ferry from Tha Tien pier; best light late afternoon.
Yaowarat (Chinatown)
Neon-lit main road that becomes a street-food strip after dark.
💡 Arrive after 6 pm; MRT Wat Mangkon station is right there.
Chao Phraya Express Boat
Commuter boats that double as the cheapest river tour in town.
💡 Orange-flag boats run a flat fare along the main tourist piers.
Chatuchak Weekend Market
One of Asia's largest markets — 10,000+ stalls of clothes, crafts, plants and food.
💡 Weekends only; go before 11 am to beat the heat.
Jim Thompson House
Teak houses and art collection of the American who revived Thai silk.
💡 Guided tours only; near BTS National Stadium.
Bang Krachao
The 'green lung' across the river — mangroves and quiet cycling paths.
💡 Rent a bicycle near Bang Na Nok pier; a calm half-day escape.
Boat noodles (kuay teow reua)
Small, intense bowls of beef or pork noodle soup with a rich spiced broth.
💡 Victory Monument boat-noodle alley
Pad Thai
Stir-fried rice noodles with tamarind, egg and peanuts.
💡 Thip Samai, Maha Chai Road
Khao man gai
Poached chicken over rice cooked in chicken stock, with ginger-soy sauce.
💡 Pratunam area stalls
Tom yum goong
Hot-and-sour prawn soup with lemongrass and lime leaf.
💡 Riverside restaurants and Yaowarat
Moo ping
Grilled marinated pork skewers with sticky rice — the classic Bangkok breakfast.
💡 Street carts, mornings
Mango sticky rice
Sweet coconut sticky rice with ripe mango; best in mango season (Mar–Jun).
💡 Mae Varee, Thong Lo
Thai silk
Hand-woven silk scarves and fabric.
💡 Jim Thompson shops
Herbal inhalers (ya dom) & balms
Menthol/herb inhalers and Thai herbal balms — light and cheap.
💡 Any 7-Eleven or pharmacy
Benjarong porcelain
Five-colour enamelled porcelain, once made for the royal court.
💡 Chatuchak, River City
Naraya bags
Quilted cotton bags and pouches from a Bangkok brand.
💡 Naraya stores, Central malls
Dried mango & Thai tea mix
Easy edible gifts that travel well.
💡 Supermarkets, Chatuchak