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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Reef Brief Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
As shown in the live forecast above, Chiang Mai’s weather follows a distinct tropical wet-dry cycle. The current dry season brings warm days and cool nights, with very little rain between November and April.
What is the best time to visit Chiang Mai?
The most comfortable months are Chiang Mai weather November to Chiang Mai weather February, when humidity is low and daytime temperatures sit in the high 20s°C. Chiang Mai weather December and Chiang Mai weather January are the coolest, with overnight lows around 15°C. Avoid March–April if you’re sensitive to smoke from agricultural burning; the air quality often drops. For the rest of the year, check the weather in Chiang Mai 10 days before planning outdoor activities.
How does Chiang Mai’s climate compare to northern neighbours?
Chiang Rai weather is very similar but tends to be a couple of degrees cooler year-round due to its higher elevation. Both cities share the same wet season (May–October), though Chiang Rai receives slightly more rain. For long-range planning, look at a Chiang Mai weather forecast 14 days or a Chiang Mai weather forecast 30 days to gauge the monsoon arrival.
When is the burning season in Chiang Mai?
Typically March and April, when farmers clear fields and the air becomes smoky. Visibility drops and air-quality indices regularly exceed hazardous levels. It’s best to avoid these months if you have respiratory concerns.
Does Chiang Mai get humid during the wet season?
Yes, humidity often exceeds 80% from June through October. Mornings are muggy, with afternoon thunderstorms providing brief relief. The combination of heat and moisture can feel uncomfortable for those used to drier climates.
How reliable are long-range forecasts for Chiang Mai?
Seven-day forecasts are generally accurate for temperature and rain probability. Chiang Mai weather forecast 14 days gives a useful trend, but 30-day outlooks should be treated as broad guidance only due to the region’s convective weather patterns.
For a broader Australian perspective, visit our Australia weather hub or compare conditions with Brisbane weather, which shares a similar subtropical feel.