December · Thailand
Best time to visit Ayutthaya in December Weather, crowds & prices
Weather in Ayutthaya in December
Average temperature 24°C, 4 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
8.5/10
Ranked #1 of 12 months
- Avg temp
- 24°C
- Rainfall
- 4 mm
- Humidity
- 75%
- Days with 6h+ sun
- 20
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in Ayutthaya scores 8.5/10 for sightseeing and cultural travel - the single best month of the year. Expect around 24°C, 4 mm of rain, and roughly 20 days with 6+ hours of sunshine this month.
Ayutthaya's ruined temples and prangs recall the Siamese capital that once ruled a vast kingdom.
December in Ayutthaya — the year's strongest window
December averages 24°C (76°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Rain is a non-issue at 4 mm for the month, with about 20 days with 6+ hours of sunshine and 11.2 hours of daylight to work with.
On our climate-comfort scale this is the top-ranked month of the year for Ayutthaya at 8.5/10 — the reference point every other month on this page is measured against.
Pack light clothing, a hat and real sun protection.
Plan for peak pricing, with 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 Ayutthaya in December?
- In December, Ayutthaya averages 24°C, 4 mm of rain, and about 20 days with 6+ hours of sunshine. Its climate-comfort score is 8.5/10.
- Is December a good time to visit Ayutthaya?
- December earns a 8.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Ayutthaya in December?
- Expect about 4 mm of rain in December. Average humidity is 75% and there are about 20 days with 6+ hours of sunshine.
Curated in Ayutthaya
Tickets & experiences
Things to do in Ayutthaya
Ayutthaya, Thailand. Live activities and tours from GetYourGuide, matched to this destination.