Bangkok weather in December
Bangkok averages 31°C by day and 22°C at night in December and 4 days with at least 1 mm of rain.
Day
31°C
Night
22°C
Sea
n/a
Rainy days
4
Flight from London
11½h
What December feels like
December is hot in Bangkok: proper beach weather.
Rain is occasional, on about 4 days.
Of the 48 sun destinations we track, Bangkok is the #3 warmest in December.
Bangkok weather by month
December is highlighted. Compare with November and January, or see the full year in Bangkok.
Bangkok in December: quick answers
Is Bangkok hot in December?
December is hot in Bangkok: proper beach weather. Average highs are 31°C and lows 22°C.
Does it rain in Bangkok in December?
Rain is occasional, on about 4 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 December for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in December 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 December?
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