December · Thailand
Best time to visit Bangkok in December Weather, crowds & prices
Weather in Bangkok in December
Average temperature 25°C, 5 mm of rain, about 20 days with 6+ hours of sunshine and 75% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
8.3/10
Ranked #1 of 12 months
- Avg temp
- 25°C
- Rainfall
- 5 mm
- Humidity
- 75%
- Days with 6h+ sun
- 20
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in Bangkok scores 8.3/10 for sightseeing and cultural travel - the single best month of the year. Expect around 25°C, 5 mm of rain, and roughly 20 days with 6+ hours of sunshine this month.
From January to March, Bangkok’s cooler dry season reveals glittering temples, sizzling street food, and tranquil canal life at their best.
December: the best month of the year in Bangkok
At 25°C (77°F) this is comfortable city weather in December, with sightseeing easiest before lunch and after the afternoon peak.
At just 5 mm for the month, rain will not shape your plans; you get about 20 days with 6+ hours of sunshine and 11.2 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Bangkok at 8.3/10 — the reference point every other month on this page is measured against.
Pack light clothing, a hat and real sun protection.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Bangkok in December?
- In December, Bangkok averages 25°C, 5 mm of rain, and about 20 days with 6+ hours of sunshine. Its climate-comfort score is 8.3/10.
- Is December a good time to visit Bangkok?
- December earns a 8.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Bangkok in December?
- Expect about 5 mm of rain in December. Average humidity is 75% and there are about 20 days with 6+ hours of sunshine.
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Bangkok, Thailand. Live activities and tours from GetYourGuide, matched to this destination.