Chiang Mai Province is one of several regions in Thailand, with temperatures that range from 29°C (84°F) in December to 38°C (100°F) during the peak of April. We've based our full climate overview on data from Chiang Mai, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
High temperatures are a constant in Chiang Mai Province, especially in Chiang Mai, with average maximums staying above 29°C (84°F) all year long.
The hottest season always takes place in March, April and May.
When it comes to rainfall, Chiang Mai Province sees significant variations throughout the year. August tends to be the wettest, receiving 259 mm (10 in) of rain, while February is much drier with just 4 mm (0.2 in). Travelers should note that the rainy season falls during July, August and September, bringing substantial precipitation ranging from 201 mm (7.9 in) to 259 mm (10 in) monthly. The driest period occurs in January, February, March and December, with rainfall remaining under 14 mm (0.6 in).
For those seeking sunshine, March usually has the brightest skies, making it an excellent time for exploring the region.
