UV Index in Sanwei, China

Last updated: August 1, 2025

Understanding the UV Index in Sanwei, China, is vital for protecting your skin and overall health. Awareness of UV levels can significantly aid in sunburn prevention, safeguarding against skin damage in this region known for its dry BWk climate. During the hottest hours—particularly between 10 AM and 2 PM—UV readings can soar to 10, indicating intense sunlight that can lead to serious skin issues without proper precautions. By keeping an eye on the UV index, you can enjoy the beautiful outdoors while minimizing your risk of exposure.

Hourly UV Index in Sanwei

The UV Index is a dynamic measure of solar intensity throughout the day, peaking dramatically at 12:00 PM with a notable 9, reaching its zenith at 1:00 PM and 2:00 PM with a maximum value of 10. During this period, it's essential to protect your skin from harmful UV rays. Early morning hours remain quite low, peaking at just 1 by 08:00 AM, while by 10:00 AM the index climbs to 5. As the sun continues to rise, it climbs swiftly to 7 by 11:00 AM, making midday the crucial time for sunscreen and shade. As the afternoon wanes, the UV Index gradually decreases, falling back to 5 by 5:00 PM, and finally settling at 1 by 7:00 PM, signaling a safe return to outdoor activities. Stay vigilant and enjoy the sunshine safely!

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
08:001low45 min
09:002low45 min
10:004moderate30 min
11:006high25 min
12:009very high15 min
13:0010very high15 min
14:0010very high15 min
15:009very high15 min
16:007high25 min
17:005moderate30 min
18:003moderate30 min
19:001low45 min

Monthly UV Index Trends in Sanwei

Throughout the year, the UV Index experiences significant seasonal variations, with high-risk months primarily occurring from March to September. In March, the UV Index rises to 7 (high), intensifying in April and May with values of 9 and 10, respectively, indicating very high exposure risks. The peak occurs in June, with an extreme index of 11, before slightly tapering off in July and August. September still presents a notable risk at 8 (very high), while October sees a decrease to a high index of 6, before falling to moderate and low levels in the winter months of November (4) and December (2). To protect against skin damage, visitors and residents are advised to take precautions during the high UV months by wearing sunscreen, protective clothing, and seeking shade, especially during peak sunlight hours.

Monthly Maximum UV Index for Sanwei, China

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Sanwei. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec3479101110108532
Data source: Statistical UV Index data for Sanwei, 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 Sanwei UV Index with Other China Cities

The table above highlights how UV exposure in Sanwei compares to other major locations across China. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Sanwei's solar exposure compared to other cities in China. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Beijing UVI2358991097642
Sanwei3479101110108642
Chengdu UVI568101211111011864
Shanghai UVI568101011121111864
Guangzhou UVI79111213131312111097
Shenzhen UVI710121214131313121197