Bangkok weather by month
Bangkok is warmest in April (34°C average high) and coolest in October (31°C). For warm, mostly dry weather, go December to January.
Warmest month
April
34°C
Coolest month
October
31°C
Wettest month
September
296 mm
Flight from London
11½h
direct, estimated
Planning a trip to Bangkok?
Share the Bangkok places you've saved on TikTok and Instagram to Dream Trip, and get them on one map with a day-by-day plan.
Bangkok temperature by month
Tap a month for the detail and warmer alternatives.
When to go to Bangkok
What is the best month to visit Bangkok for sun?
For warm, mostly dry days, go December to January, going by our 10-year averages.
What is the hottest month in Bangkok?
April averages 34°C. October is the coolest at 31°C.
When does it rain most in Bangkok?
September, with about 296 mm of rain.
Planning the trip? Start with our 3-day Bangkok itinerary, and see the best time to visit Bangkok for crowds and events.
How we measured this
Daily averages from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis); sea temperatures are 2023 to 2025 averages from the Open-Meteo marine archive. Rain is the average monthly total.
Going to Bangkok?
Save the places you find on TikTok and Instagram for Bangkok to one map, and Dream Trip will plan the days around them.
