Bangkok weather in May
Bangkok averages 33°C by day and 27°C at night in May and 21 days with at least 1 mm of rain.
Day
33°C
Night
27°C
Sea
n/a
Rainy days
21
Flight from London
11½h
What May feels like
May is hot but wet in Bangkok: rainy season, so pack for showers.
It is rainy season, with rain on about 21 days.
Of the 48 sun destinations we track, Bangkok is the #6 warmest in May.
Want it warmer in May?
These are hotter than Bangkok this month for at most an hour and a half more flying:
Bangkok weather by month
May is highlighted. Compare with April and June, or see the full year in Bangkok.
Bangkok in May: quick answers
Is Bangkok hot in May?
May is hot but wet in Bangkok: rainy season, so pack for showers. Average highs are 33°C and lows 27°C.
Does it rain in Bangkok in May?
It is rainy season, with rain on about 21 days.
What is the warmest month in Bangkok?
April, at an average high of 34°C. The coolest is October at 31°C.
How long is the flight to Bangkok from the UK?
About 11½h direct from London, estimated from the 9,555 km distance. Check your airline for exact times.
Still choosing? See where is hot in May for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in May from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis). Sea temperature is the 2023 to 2025 average from the Open-Meteo marine archive. A rainy day has at least 1 mm of rain. Reanalysis describes an area about 25 km across, so sheltered resorts can run a degree or two warmer. Flight time is a distance-based estimate from London Heathrow.
Planning Bangkok in May?
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