DESTINATIONS thailand chiang mai when-to-go-90
When to Go
The best time to visit is during the dry season between November and February, when days are pleasantly sunny and evenings refreshingly cool. From March to June the weather can be uncomfortably hot, and pollution is heavy in March and April. From July to October the monsoon rains drench the city. Pollution has become so bad that travelers with breathing problems are advised to avoid the city in March and April, the hottest months of the year, and should check pollution levels before coming in other months.