Chiang Mai peak stays chilly at 9C as plains brace for heat

Chiang Mai is experiencing a sharp contrast in weather conditions, with cold temperatures still prevailing on Doi Inthanon while much of the North faces hot and hazy daytime weather.

As of 7am on March 26, 2026, the Facebook page of Chom Thong district in Chiang Mai reported impressive morning scenes from the summit area of Doi Inthanon, where conditions remained distinctly cold despite Thailand being well into the hot season.

Minimum temperatures recorded at key points were as follows:

• Doi Inthanon summit: 9C
• Kew Mae Pan: 12C
• National park headquarters (Km 31, Ban Khun Klang): 11C

Tourists, particularly foreign visitors, travelled up the mountain to experience the first light of sunrise and the fresh air. Conditions at the summit were described as especially beautiful this morning, with open skies allowing clear views of the sunrise, while air quality was reported to be in the very good range, making it ideal for sightseeing and relaxation.

Visitor figures for Doi Inthanon National Park on March 25 showed a total of 824 tourists, including 485 foreign visitors and 339 Thai nationals. The figures underline how the cool weather on the mountaintop continues to attract travellers even in late March.

While the summit remains chilly, the Northern Meteorological Centre said the overall weather pattern across the North is hot to very hot in some areas, as a heat-induced low-pressure system continues to cover upper Thailand.

The forecast for Chiang Mai for March 26-27 says:

• Hot weather with hazy conditions during the day
• Maximum temperature of up to 38C
• Minimum temperature in lowland areas of 21C

Authorities have advised drivers heading up to the summit to take extra care because of the steep route. People in lowland areas have also been urged to look after their health as temperatures fluctuate sharply, and to avoid prolonged outdoor activity in order to reduce the risk of heatstroke.