Ayutthaya weather in December
December in Ayutthaya: hot, dry — one of the best months to visit.
#1 of 12 months in Ayutthaya · #154 of 897 destinations to visit in December · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ayutthaya in December
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Ayutthaya climate normals — December
| Daytime high | 31°C / 88°F | 🥵 hot |
|---|---|---|
| Nighttime low | 21°C / 70°F | |
| Rainfall | 4 mm / 0.1 in | ☀️ dry |
| Rainy days | 2 days | |
| Humidity | 59% | 🍃 comfortable |
| Dew point | 17°C / 63°F | |
| Sunshine | 10.1 h/day | |
| Daylight | 11.3 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 64 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Ayutthaya in December — FAQ
- Is December a good time to visit Ayutthaya?
- December in Ayutthaya: hot, dry — one of the best months to visit. It ranks #1 of 12 months for Ayutthaya on SeasonMap's comfort score (85/100).
- What is the weather like in Ayutthaya in December?
- In December, Ayutthaya averages a daily high of 30.9°C and a low of 21.3°C, with about 3.7 mm of rain over roughly 1.6 rainy days.
- What is the air quality in Ayutthaya in December?
- Ayutthaya has a mean US Air Quality Index of about 64 in December.