The climate in Bangkok is tropical, with annual average temperatures spanning 31°C / 87°F during January up to 34°C / 94°F in April.
Rainfall averages about 106 mm / 4.2 inches per month, with the wettest conditions in September (261 mm / 10.3 inches) and the driest in December (11 mm / 0.43 inches).
The UV index ranges from 7 in December to 9 in April, so strong sun protection is essential during summer months.
Daylight hours range from about 11.3 hours in December to 12.9 hours in June.
From the warmth of April to the cooler days of January, Bangkok presents diverse weather for year-round exploration.
Find the best dates. Understand the conditions. Pack with confidence.
The big-picture stats that matter for planning your visit to Bangkok.
Average highs up to 34.5°C and lows down to 21.8°C.
September averages 261 mm.
Typical peak UV is Very High.
Roughly 11 hrs to 13 hrs.
Average around 9 km/h, peaking in March.
Our top-rated months for visiting Bangkok, based on long-term weather comfort and conditions
Tip: click on a card to see detailed daily weather averages for that month.
Visiting soon? Here's the next 7 days of weather for Bangkok, or see an hourly breakdown for the next 14 days.
On a typical year, you can expect highs around 32°C (90°F) and lows near 25°C (77°F). Conditions usually feel hot in the daytime and warm once the sun goes down. You may notice some humidity at times. It tends to be on the cloudier side, with fewer blue-sky days.
UV tends to peak in April, when UV levels frequently reach very high levels (around 9), so strong sun protection is essential, especially around midday.
It can feel humid, especially in the warmer months, when humidity can climb to around 83%. Light, breathable fabrics help a lot on muggy days.
Across the year, average winds sit around 9 km/h (6 mph), with gusts on windier days up to about 50 km/h (31 mph). Overall it is it can feel quite windy at times, particularly when weather systems move through.
On average, days offer about 12 hours of daylight. Daylight is fairly typical, with enough time for sightseeing.