Ideal weather days in Chiang Mai
The best time to visit Chiang Mai for warm, dry weather is December and January, with 27 to 30 such days a month.
How many days here suit you?
Set your ideal day. Each day measured at Chiang Mai's weather station in 2023–2025 is checked against it.
They're most common in December and January.
This station doesn't record cloud cover, so the sky setting is left out here.
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Your ideal days in Chiang Mai, month by month
Why the other days don't count
- Too hot222
- Too wet114
- Too cold0
- Too windy0
A day can fail more than one test.
Warm and dry, beach and mild days
With the Warm & dry preset (a high of 18–33 °C, no more than 1 mm of rain, wind under 20 km/h), Chiang Mai averaged 98 days a year in 2023–2025. Every number here is counted from real measured days in Thailand, not from climate averages.
Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are most common in December and January (up to 27 a month, 108 a year). Mild, still days (16–26 °C, light wind) are rare: no month averaged more than 1.
What spoils the other days
Most of the days that don't count are too hot (over 33 °C): 222 a year, mostly in February to October. Another 114 are wet (more than 1 mm of rain), mostly in May to October. A day can fail more than one test.
Chiang Mai weather, month by month
| Month | Typical high | Rain days | Windy days | Clear days | Warm & dry days |
|---|---|---|---|---|---|
| January | 31 °C 88 °F | 1 | 0 | 19 | 30 of 31 |
| February | 34 °C 93 °F | 1 | 0 | 23 | 8 of 28 |
| March | 37 °C 99 °F | 2 | 0 | 23 | 2 of 31 |
| April | 39 °C 102 °F | 5 | 0 | 21 | 0 of 30 |
| May | 37 °C 99 °F | 18 | 0 | 4 | 1 of 31 |
| June | 35 °C 95 °F | 15 | 0 | 0 | 2 of 30 |
| July | 34 °C 93 °F | 19 | 0 | 0 | 3 of 31 |
| August | 34 °C 93 °F | 20 | 0 | 0 | 3 of 31 |
| September | 34 °C 92 °F | 23 | 0 | 0 | 2 of 30 |
| October | 34 °C 93 °F | 16 | 0 | 3 | 3 of 31 |
| November | 33 °C 91 °F | 2 | 0 | 6 | 17 of 30 |
| December | 32 °C 90 °F | 2 | 0 | 14 | 27 of 31 |
| Year | 125 | 0 | 113 | 98 of 365 |
Typical high is the median daily maximum. A rain day has 1 mm or more; a windy day a mean wind above 20 km/h; a clear day a daytime cloud cover of 2/8 or less on average (9:00–17:00). Days are averaged over 2023–2025 and scaled to the length of each month.
Year by year
- 2023 104 warm, dry days
- 2024 88 warm, dry days
- 2025 incomplete (8 of 12 months)
Questions
When is the best time to visit Chiang Mai for good weather?
The best time to visit Chiang Mai for warm, dry weather is December and January, with 27 to 30 such days a month. Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are most common in December and January (up to 27 a month, 108 a year). Counted from measured days at Chiang Mai International station, 2023–2025.
Does it rain a lot in Chiang Mai?
On average 125 days a year had 1 mm of rain or more in 2023–2025. The wettest month was September (23 rain days), the driest January (1).
How many sunny days does Chiang Mai get a year?
About 113 days a year had mostly clear skies (daytime cloud cover of 2/8 or less on average, 9:00–17:00), most of them in February (23).
How warm does Chiang Mai get?
The median daily high ranged from 31 °C (88 °F) in January to 39 °C (102 °F) in April.
Nearby
- Yangon370 km, Myanmar60 days
- Bangkok580 km112 days
- Hanoi760 km, Vietnam188 days
- Kunming790 km, China206 days
- Dhaka1050 km, Bangladesh157 days
More cities in Thailand
Where is the best climate in Thailand?
Open Chiang Mai on the map Set your own temperature, rain and wind limits.
Source: Chiang Mai International weather station (48327099999), 3 km from the centre of Chiang Mai, 316 m above sea level. Daily records from NOAA's Global Surface Summary of the Day, 2023–2025; 84% of days have a complete record. A single station may not represent every part of a city, and three years is a short record.