When to visit Chiang Mai?
The decision rests on several criteria. Climate score, tourist crowds and feasible activities.
What you grasp in 5 seconds
Chiang Mai offers 4 comfortable months, without any month really to avoid. The gap stays moderate: 9.3 in January vs 4.6 in August.
What to check next
Your tolerance for crowds and budget. The best months concentrate tourist saturation and higher prices. Shoulder seasons offer a good compromise.
Next action
Scroll down to the detailed table to compare month by month, then open the page of the month that interests you.
How we calculate the score
The score combines 4 weighted criteria using 10 years of real climate data (ERA5).
Source : ERA5 · Open-Meteo · 10 years (2016–2025) · Full methodology →
Compare all 12 months
Month-by-month details: temperature, rain, sunshine, score and verdict.
| Month | T° min | T° max | Rain % | mm/day | Sun | Score | Verdict |
|---|---|---|---|---|---|---|---|
| ☀️ January → | 63°F | 82°F | 3% | 0.7mm | 8.3h | 9.3/10 | Best period |
| ☀️ February → | 64°F | 86°F | 2% | 0.9mm | 8.9h | 9.2/10 | Best period |
| 🌥️ March → | 70°F | 93°F | 7% | 0.3mm | 8.6h | 5.4/10 | Decent period |
| 🌥️ April → | 75°F | 97°F | 16% | 1.9mm | 8.4h | 4.7/10 | Decent period |
| 🌥️ May → | 75°F | 91°F | 39% | 6.6mm | 7.0h | 4.8/10 | Decent period |
| 🌥️ June → | 75°F | 88°F | 39% | 8.0mm | 4.9h | 4.8/10 | Decent period |
| 🌥️ July → | 75°F | 86°F | 46% | 11.8mm | 3.7h | 4.7/10 | Decent period |
| 🌥️ August → | 75°F | 86°F | 55% | 13.3mm | 3.6h | 4.6/10 | Decent period |
| 🌥️ September → | 73°F | 86°F | 49% | 11.2mm | 5.1h | 4.9/10 | Decent period |
| 🌥️ October → | 72°F | 86°F | 29% | 5.8mm | 6.3h | 5.4/10 | Decent period |
| ☀️ November → | 70°F | 84°F | 10% | 2.3mm | 7.6h | 8.8/10 | Best period |
| ☀️ December → | 64°F | 82°F | 4% | 0.8mm | 7.7h | 9.2/10 | Best period |
Chiang Mai week by week: your odds of avoiding rain
For each week of the year: in how many years out of 10 it was mostly dry (at most 2 rainy days), 2016 to 2025.
Safest week: Jan 29 to Feb 4, mostly dry in 10 years out of 10 (0.0 rainy day(s) on average).
Most exposed: Aug 20 to Aug 26, mostly dry in 1 years out of 10 (4.3 rainy days on average).
| Jan | Jan 19/1081°F | Jan 810/1081°F | Jan 1510/1082°F | Jan 2210/1081°F | Jan 2910/1084°F |
|---|---|---|---|---|---|
| Feb | Feb 510/1085°F | Feb 1210/1087°F | Feb 1910/1088°F | Feb 2610/1089°F | |
| Mar | Mar 510/1093°F | Mar 1210/1094°F | Mar 199/1094°F | Mar 2610/1096°F | |
| Apr | Apr 28/1094°F | Apr 98/1096°F | Apr 168/1096°F | Apr 238/1096°F | Apr 305/1094°F |
| May | May 77/1094°F | May 147/1093°F | May 213/1091°F | May 281/1089°F | |
| Jun | Jun 47/1089°F | Jun 112/1087°F | Jun 186/1088°F | Jun 255/1087°F | |
| Jul | Jul 23/1086°F | Jul 94/1086°F | Jul 165/1086°F | Jul 235/1086°F | Jul 305/1085°F |
| Aug | Aug 63/1085°F | Aug 132/1085°F | Aug 201/1085°F | Aug 273/1085°F | |
| Sep | Sep 33/1086°F | Sep 101/1085°F | Sep 173/1085°F | Sep 243/1085°F | |
| Oct | Oct 14/1085°F | Oct 86/1085°F | Oct 157/1084°F | Oct 229/1085°F | Oct 297/1084°F |
| Nov | Nov 59/1083°F | Nov 1210/1085°F | Nov 199/1083°F | Nov 269/1082°F | |
| Dec | Dec 310/1082°F | Dec 1010/1082°F | Dec 1710/1081°F | Dec 2410/1081°F |
A specific date? The app computes the same figure day by day.
Annual temperatures — Chiang Mai
Min/max temperature curves observed over the past 10 years (ERA5). Shows climate stability and trend.
For your trip
A few angles depending on what kind of trip you are planning.
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
🎟️ Activities & tours · Chiang Mai
GetYourGuide selection · free cancellation
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.
Country · Thailand
🌡️ Climate
🏝️ Tropical stay
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Where is Chiang Mai ?
Global position + regional geographic context.