What to pack for Chiang Mai in August
- light, breathable clothing
- sun protection (hat, SPF 50)
- a compact umbrella or rain shell — rain is frequent
- expect humid, sticky conditions
Humidity averages 87%; max daily wind around 9 km/h.
How August compares
Best months in Chiang Mai: December–January. See the full best time to visit Chiang Mai guide.
Chiang Mai in August: the details
In August, Chiang Mai sees average daytime highs of 30°C (85°F) and overnight lows of 24°C (75°F). Rainfall totals roughly 450 mm across 30.3 rainy days, and the sun shines about 7.4 hours per day with 12.6 hours of daylight mid-month. Relative humidity averages 87%.
In context: August is the 8th-warmest month and the wettest in Chiang Mai. The sunniest month is April (10.9 h/day).
| Metric | August average |
|---|---|
| Daytime high | 30°C / 85°F |
| Overnight low | 24°C / 75°F |
| Rainfall | 450 mm over 30.3 rainy days |
| Sunshine | 7.4 h/day (12.6 h daylight) |
| Humidity | 87% |
| Travel score | 4.3 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Chiang Mai, Thailand (18.79, 98.98) — see our methodology. Actual conditions vary year to year.
Not set on Chiang Mai? Browse the best places to visit in August ranked by travel score.
Frequently asked questions
How hot is Chiang Mai in August?
Daytime highs in Chiang Mai in August average 30°C (85°F); nights drop to about 24°C.
Does it rain in Chiang Mai in August?
Expect around 30.3 rainy days and 450 mm of rainfall in August.
Is August a good time to visit Chiang Mai?
August is a challenging month to visit Chiang Mai — consider December–January instead. Overall travel score: 4.3/10. The best months are December–January.
Also good in August, near Chiang Mai
Where should you go next month?
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