Chiang Mai in Summer — Weather & What to Expect
Summer in Chiang Mai (June, July, August) averages daytime highs of 30.7°C and lows of 23.9°C, with around 979.6mm of rain across the season (84 rainy days in total). It includes some of the best months of the year to visit (June, July, August).
In the northern hemisphere, summer in Chiang Mai covers June, July, August.
Summer in Chiang Mai month by month
| Month | High | Low | Rain | Rainy days | Rating |
|---|---|---|---|---|---|
| June | 31.9°C | 24.1°C | 219.9mm | 26 | 8/10 |
| July | 30.7°C | 23.9°C | 343.1mm | 28 | 8/10 |
| August | 29.6°C | 23.6°C | 416.6mm | 30 | 8/10 |
What to pack for Chiang Mai in summer
- Lightweight, breathable clothing
- High SPF sunscreen
- Sunglasses
- Sun hat
- Reusable water bottle
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Frequently Asked Questions
Is summer a good time to visit Chiang Mai?
Summer in Chiang Mai rates around 8/10 — good time to visit. Average highs are 30.7°C with 979.6mm of rain across the season.
How hot is Chiang Mai in summer?
Daytime highs average 30.7°C (87.3°F) across June, July, August, with nights around 23.9°C.
What months are summer in Chiang Mai?
Chiang Mai is in the northern hemisphere, so summer covers June, July, August.
See also: best time to visit Chiang Mai · Chiang Mai annual climate · Chiang Mai in spring · Chiang Mai in autumn · Chiang Mai in winter
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Once you know what summer in Chiang Mai looks like, find out exactly what to pack for Chiang Mai at 247PackingList. For currency, language and country facts, see the Thailand guide at 247CountryInfo.
Summer in Chiang Mai — what to pack
Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
Check Price →Check clothing sizes in Thailand at 247Sizing before you shop.
More summer travel essentials
Last updated:
Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.