Chiang Mai, Thailand

If you're planning a trip of museums, food and old streets, Chiang Mai deserves a close look. This Thailand destination lies at altitude, and its climate record peaks at a 96/100 sun score in February — 30°C afternoons under 21% average cloud cover.

The year runs from average lows of 17°C in January to highs of 36°C in April. The wet–dry contrast is pronounced: 96% rain-day odds in August against 6% in February. The genuinely warm window — average highs of 24°C or better — covers January–December.

Season by season (on the northern calendar), spring brings 34°C highs with 30% rain-day odds, summer 30°C at 91%, autumn 29°C at 55%, and winter 28°C at 9%. That makes winter the statistical sweet spot (season score 96), with autumn a workable second; summer is where the odds thin out. A practical compromise is January — the edge of the warm window, averaging 27°C with a 95 sun score.

Best months to visit Chiang Mai

Ranked purely on sunshine odds, the podium is February at 96/100, then December at 96 and January at 95. Anything in January–March, June and September–December clears our 70-point reliability bar. The month to avoid on pure weather odds is August (66/100).

For context: in February, Chiang Mai is drier than 99% of the mountain destinations we track.

Month-by-month breakdown for Chiang Mai → · More destinations for February →

As of the latest refresh, Chiang Mai's next 16 days span 20°C to 31°C; 6 days look mostly sunny while 2 look likely to be wet — a live sun score of 91/100.