Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
December verdict
Excellent for holiday weather
Average highs sit around 31°C, giving warm days by monthly-average standards. Sunshine averages 8.2h per day, so bright days are a strong part of the month. Rainfall averages 11mm, which is relatively low for holiday planning.

Monthly averages
Temp
31°C
Rain
11mm
Sun
8.2h
Sea
28°C
Weather score
85
Excellent
Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Drier
Rainfall averages 11mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.2h per day, so bright days are a strong part of the month.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Compare Bangkok, Thailand with nearby places by weather score, rain, sun, temperature, and swim conditions.
December31°C average high
December is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsMarch to May
This stretch sets the upper range for average daytime heat.
December11mm average rain
December is one of Bangkok's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to April and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December8.2 hours average sun
December is one of Bangkok's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJanuary to April and December
This stretch has the strongest sunshine in the monthly averages.
December28°C average sea
December is below Bangkok's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaApril to October
Sea temperatures are usually near 30°C in this stretch, so swimming comfort is at its strongest.
December85 weather score
December is one of Bangkok's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJanuary to March and November to December
These months have the strongest weather score in the monthly averages.
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