Click on a day for an hourly weather forecast
The weather in Chiang Mai in August is hot. The average temperatures are between 22°C and 31°C.
You can expect rain for roughly half of the month of August in Chiang Mai. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Chiang Mai in August 2025.
If you’re planning to visit Chiang Mai in the near future, we highly recommend that you review the 14 day weather forecast for Chiang Mai before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 30° / 15° | 1 | 31 | 0 | 10 mm | Good | Chiang Mai in January |
| February | 34° / 17° | 0 | 28 | 0 | 3 mm | Ok | Chiang Mai in February |
| March | 37° / 21° | 0 | 31 | 0 | 14 mm | Ok | Chiang Mai in March |
| April | 39° / 24° | 1 | 29 | 0 | 32 mm | Bad | Chiang Mai in April |
| May | 37° / 24° | 4 | 27 | 0 | 117 mm | Ok | Chiang Mai in May |
| June | 33° / 23° | 6 | 24 | 0 | 122 mm | Good | Chiang Mai in June |
| July | 31° / 22° | 10 | 21 | 0 | 184 mm | Ok | Chiang Mai in July |
| August | 31° / 22° | 8 | 23 | 0 | 190 mm | Ok | Chiang Mai in August |
| September | 32° / 22° | 7 | 23 | 0 | 131 mm | Ok | Chiang Mai in September |
| October | 31° / 20° | 3 | 28 | 0 | 58 mm | Good | Chiang Mai in October |
| November | 31° / 18° | 1 | 29 | 0 | 24 mm | Good | Chiang Mai in November |
| December | 29° / 15° | 0 | 31 | 0 | 11 mm | Good | Chiang Mai in December |