Trekking in Northern Thailand
One of the most beautiful attractions in Thailand is trekking along mountain villages north of Chiang Mai. The best time to trek is November until February.
Chiang Mai in January sees very high daytime temperatures of 31°C (88°F) and nighttime lows of 15°C (59°F). With just 9.2 mm (0.4 in) of rainfall expected, it's a dry month overall.
If your ideal day consists of dry skies and pleasant temperatures, January, November and December typically offer the best circumstances for Chiang Mai.
Pick a month to see the average temperature, rainfall and sunshine in Chiang Mai - and find the best time to visit.
51-year average (1976-2026)
Based on our historical records, temperatures in Chiang Mai typically stay consistent throughout January, with daily highs averaging around 31°C (88°F). Nights are pleasant, with lows around 16°C (61°F).
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Chiang Mai spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Chiang Mai from 1976 through 2025.
Find out more about the weather in Thailand and which places have the best travel conditions in this month. See all of Thailand in January →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm temperatures in January make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Chiang Mai climate overview or explore weather in Thailand.
Where to go in January - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Trekking in Northern Thailand
One of the most beautiful attractions in Thailand is trekking along mountain villages north of Chiang Mai. The best time to trek is November until February.
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