Chiang Mai UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index11.9
- Avg Clouds100%
- Max Temp30.1 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Chiang Mai, Thailand 
will reach a high of 11.9 today. This means a extreme level of sun exposure. See our tips below to stay safe!
Last checked: 2025-08-04
Hourly Forecast Chart
Today's Safety Tips
Extreme danger! Avoid being in the sun, especially during midday. If you go out, cover up with clothing, a hat, and sunglasses, and use plenty of sunscreen.
Chiang Mai's UV Index
Chiang Mai's UV index varies seasonally, reaching very high levels around 10 to 12 during the hot months from March to May. It is lower during the rainy season and coolest months, typically between 4 and 7.
Weather Seasons
The city experiences three main seasons: a hot season from March to May, a rainy season from June to October, and a cool season from November to February. Temperatures peak in April and drop to their lowest in December and January.
Chiang Mai's Climate
Compared to other parts of Thailand, Chiang Mai is cooler during the winter months due to its northern location and higher elevation. Neighboring countries like Myanmar and Laos have similar seasonal patterns but generally experience higher humidity and more intense monsoon rains.
Hourly UV Index Trend
See the UV index hour by hour for Chiang Mai. When the level is high, it's smart to find some shade.
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