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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the Headlines UK weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above before heading out, as Chiang Mai’s weather shifts noticeably between the hot, rainy and cool seasons. The city’s tropical savanna climate means high humidity and warm temperatures year-round, but the timing of your visit makes a real difference.
What is the best time to visit Chiang Mai for good weather?
The cool season from November to February offers the most comfortable conditions, with daytime highs around 30°C and lower humidity. Chiang Mai weather in November sees the tail end of the rainy season, while December and January bring clear skies and cooler evenings. Chiang Mai weather in January is especially popular for outdoor activities, though nights can drop to 15°C.
What is the rainy and burning season like?
The wet season runs from May to October, with heavy afternoon showers and high humidity. March to April is the hottest period, often with hazy conditions due to agricultural burning. If you are checking Chiang Mai weather by month, avoid March and April if you have respiratory concerns. For longer planning, a Chiang Mai weather forecast 30 days ahead gives a reliable trend, but daily accuracy is best with a Chiang Mai weather forecast 14 days view.
How accurate are Chiang Mai weather forecasts for 14 days?
Forecasts beyond 7 days are general trends, not precise predictions. A Chiang Mai weather forecast 14 days is useful for spotting broad weather patterns, but check the live forecast above for the most reliable daily update.
Is Chiang Mai weather similar to Chiang Rai weather?
Chiang Rai weather is broadly similar but tends to be slightly cooler and wetter, as it lies further north and at a higher elevation. Both share the same seasonal pattern, though Chiang Rai’s burning season can be less intense.
What should I pack for Chiang Mai in December?
Pack light layers for warm days and a jacket for cool evenings. Chiang Mai weather in December is dry and sunny, but temperatures can dip to 14°C at night. A reusable water bottle and sun protection are essential.
Sources
For other UK destinations, see our UK weather hub, check Birmingham Weather or the 10 Day Weather Forecast UK.