Thailand · Asia
What to Wear in Chiang Mai
Month-by-month temperatures, rainfall, and clothing recommendations for Chiang Mai, Thailand. Find out what to pack for every season.
Warmest month
March
36°C / 97°F
Coolest month
December
29°C / 84°F
Wettest month
August
228 mm
Best months
December
Monthly climate & clothing guide
| Month | High | Low | Rain | Humidity | Climate |
|---|---|---|---|---|---|
| January | 30°C / 86°F | 14°C / 57°F | 7 mm | low | Hot & Dry |
| February | 33°C / 91°F | 15°C / 59°F | 5 mm | low | Hot & Dry |
| March | 36°C / 97°F | 19°C / 66°F | 14 mm | low | Hot & Dry |
| April | 36°C / 97°F | 23°C / 73°F | 50 mm | moderate | Hot & Dry |
| May | 34°C / 93°F | 23°C / 73°F | 152 mm | high | Hot & Humid |
| June | 33°C / 91°F | 24°C / 75°F | 131 mm | high | Hot & Humid |
| July | 32°C / 90°F | 23°C / 73°F | 161 mm | high | Hot & Humid |
| August | 31°C / 88°F | 23°C / 73°F | 228 mm | high | Hot & Humid |
| September | 32°C / 90°F | 23°C / 73°F | 228 mm | high | Hot & Humid |
| October | 31°C / 88°F | 21°C / 70°F | 122 mm | high | Hot & Humid |
| November | 30°C / 86°F | 18°C / 64°F | 44 mm | moderate | Hot & Dry |
| December | 29°C / 84°F | 15°C / 59°F | 16 mm | low | Warm |
Seasonal clothing guide for Chiang Mai
Winter (Dec-Feb)
Hot & DryAverage highs 31°C (88°F), lows 15°C (59°F). Total seasonal rainfall: 28 mm.
Sun protection is the priority. Loose-fitting, UPF-rated clothing shields skin without trapping heat. Evenings can cool significantly in desert climates.
Spring (Mar-May)
Hot & DryAverage highs 35°C (95°F), lows 22°C (72°F). Total seasonal rainfall: 216 mm.
Sun protection is the priority. Loose-fitting, UPF-rated clothing shields skin without trapping heat. Evenings can cool significantly in desert climates.
Summer (Jun-Aug)
Hot & HumidAverage highs 32°C (90°F), lows 23°C (73°F). Total seasonal rainfall: 520 mm.
Lightweight, breathable fabrics that wick moisture and dry fast. Minimize layers — one top and one bottom is all you need most days.
Fall (Sep-Nov)
Hot & HumidAverage highs 31°C (88°F), lows 21°C (70°F). Total seasonal rainfall: 394 mm.
Lightweight, breathable fabrics that wick moisture and dry fast. Minimize layers — one top and one bottom is all you need most days.
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Read the full packing guideFAQ
What should I wear when visiting Chiang Mai?
What to wear in Chiang Mai depends on the month. The warmest month is March (avg high 36°C / 97°F) and the coldest is December (avg high 29°C / 84°F). Check the month-by-month table above for specific clothing recommendations.
What is the best time to visit Chiang Mai?
For comfortable weather and easy packing, the best months to visit Chiang Mai are December. These months have mild to warm temperatures with manageable rainfall.
Does it rain a lot in Chiang Mai?
The wettest month in Chiang Mai is August with an average of 228 mm of rainfall. A packable rain jacket is essential during the wet season.
Do I need warm clothes for Chiang Mai?
Chiang Mai stays relatively warm year-round. The coolest month is December with average highs of 29°C (84°F). A light jacket or sweater should be sufficient for cooler evenings.
Ready to pack for Chiang Mai?
Use our interactive tool to compare climates and get layering advice.
Open Climate Calendar