Chiang Mai weather in January
January in Chiang Mai: hot, dry — one of the best months to visit.
#1 of 12 months in Chiang Mai · #28 of 604 destinations to visit in January · comfort 89/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Chiang Mai climate normals — January
| Daytime high | 28°C / 83°F | 🥵 hot |
|---|---|---|
| Nighttime low | 16°C / 61°F | |
| Feels like (high) | 30°C / 86°F | |
| Rainfall | 7 mm / 0.3 in | ☀️ dry |
| Rainy days | 1 days | |
| Humidity | 67% | 💧 humid |
| Dew point | 15°C / 59°F | |
| Sunshine | 10.1 h/day | |
| Daylight | 11.1 h | |
| Wind | 7 km/h / 4 mph | |
| Air quality (US AQI) | 79 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Chiang Mai?
Loading map…
Chiang Mai in January — FAQ
- Is January a good time to visit Chiang Mai?
- January in Chiang Mai: hot, dry — one of the best months to visit. It ranks #1 of 12 months for Chiang Mai on SeasonMap's comfort score (89/100).
- What is the weather like in Chiang Mai in January?
- In January, Chiang Mai averages a daily high of 28.1°C and a low of 16.1°C, with about 7.3 mm of rain over roughly 1.2 rainy days.
- What is the air quality in Chiang Mai in January?
- Chiang Mai has a mean US Air Quality Index of about 79 in January.