Chiang Mai enjoys a cooler climate and better relative humidity than other areas in Thailand and a holiday and round trips in northern Tahiland can be enjoyed all year round. Weather and Climate in Chiang Mai province, with historical information on temperature, rainfall and advice on the best time to visit Chiang Mai can be found on this website. Chiang Mai has a tropical climate, but with cooler temperature and less humidity than other regions in Thailand. Chiang Mai experiences also monsoons during the rainy season.