UV Index in Wiang Chai, Thailand

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Wiang Chai, Thailand, a region characterized by its Aw climate that often leads to heightened sun exposure. Being aware of UV levels is essential for preventing sunburn and maintaining overall skin health, especially during peak hours when the UV Index soars above 9. From 10:00 AM to 1:00 PM, you can expect UV readings to reach a maximum of 14, emphasizing the need for protective measures against potential harm. As you enjoy the beautiful scenery and outdoor activities in Wiang Chai, staying informed about these UV risks will help you safeguard your skin and enhance your experience under the tropical sun.

Hourly UV Index in Wiang Chai

The UV Index today showcases a dramatic rise as the sun ascends, starting at a mild 1 at 7:00 AM. By 9:00 AM, it ramps up to 6, hitting 9 by 10:00 AM. The intensity peaks around 12:00 PM with a scorching 14, persisting until 1:00 PM. As the afternoon progresses, the UV Index begins to decline, dropping to 11 by 2:00 PM, then down to 8 at 3:00 PM. By late afternoon, it falls further to 5 at 4:00 PM, and the day winds down with a gentle 2 at 5:00 PM, before cooling off to 1 at 6:00 PM and finally dropping to 0 by 7:00 PM. Remember, mid-day hours are when protection from UV rays is most crucial!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
TimeUVICategoryTime to Burn
07:001low45 min
08:003moderate30 min
09:006high25 min
10:009very high15 min
11:0013extreme10 min
12:0014extreme10 min
13:0014extreme10 min
14:0011extreme10 min
15:008very high15 min
16:005moderate30 min
17:002low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Wiang Chai

The UV Index demonstrates significant seasonal fluctuations, with the highest values occurring from March to October. During this period, UV Index values reach up to 14, categorizing the exposure level as extreme, which means that unprotected skin can burn in as little as 10 minutes. March, April, July, August, September, and October are particularly high-risk months for UV exposure. Conversely, high risk persists in January and February, with an index of 9 and 10, respectively, necessitating 15 minutes of burn time. To protect yourself and enjoy outdoor activities safely, residents and visitors are advised to apply broad-spectrum sunscreen, wear protective clothing, and seek shade during peak hours, especially from late morning to mid-afternoon when UV radiation is at its highest.

Monthly Maximum UV Index for Wiang Chai, Thailand

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Wiang Chai. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec910131314131414141398
Data source: Statistical UV Index data for Wiang Chai, based on information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Compare Wiang Chai UV Index with Other Thailand Cities

The table above highlights how UV exposure in Wiang Chai compares to other major locations across Thailand. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Wiang Chai's solar exposure compared to other cities in Thailand. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Wiang Chai910131314131414141398
Mueang Nonthaburi UVI1012141314131414131298
Samut Prakan UVI1012141314131414131298
Bangkok UVI1012141314131414131298
Udon Thani UVI9111314141314141412109
Chon Buri UVI10131414141314141313109