When to go · Bangkok
Bangkok in September
Avoid month. Wettest month; street flooding in low areas after storms.
Key facts
- Verdict
- Avoid
- Temperature
- 32° / 25°
- average high / low
- Rain days
- 21
- Crowds
- Low
- Thailand overall
- Prices
- Low
- Thailand overall
Verdict
Wettest month; street flooding in low areas after storms.
Weather in September
- BangkokHighs around 32 °C, lows around 25 °C, rain on about 21 days
- Bangkok and centre, Thailand · Bangkok, Ayutthaya, Kanchanaburirainy
Cool season Nov–Feb is the easy window; April reaches 38 °C; September and October bring street flooding in short bursts.
Rainy season season
Green parks, cleaner air, lower hotel prices, fewer tourists; short storms that cool the evenings.
Watch: Street flooding after storms; September is the wettest; boats and bike tours can cancel.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Vegetarian (Jay) Festival check
First nine days of the 9th Chinese lunar month · Yaowarat and Talat Noi
Yellow flags mark meat-free stalls; Chinatown classics in vegan versions.
Crowds and prices
- Crowds · Thailand overall
- Low
- Prices · Thailand overall
- Low
Thailand overall: Wettest month in Bangkok and on the Andaman coast; flooding in low areas. Only for low prices.
What to pack
- Light, breathable clothes, a sun hat and sunscreen
- A rain jacket or umbrella and shoes that dry fast