UV Index in Chengdu, China

Last updated: May 3, 2025

In Chengdu, China, staying informed about the UV Index is essential for safeguarding your skin and health. Understanding UV levels helps prevent sunburn and long-term skin damage, especially in a city characterized by a humid subtropical climate (Cwa) that can lead to unexpectedly high UV exposure. With peak UV Index readings reaching as high as 12 during midday, residents and visitors alike should be vigilant about sun safety practices, especially between 10 AM and 4 PM when the risk is greatest. Stay protected and enjoy the vibrant sun-soaked days in Chengdu while keeping your skin healthy!

Hourly UV Index in Chengdu

The UV Index reveals a fascinating journey through the day, peaking dramatically as the sun reaches its zenith. Starting off with a mild index of 1 at 07:00, it gradually climbs, reaching 2 by 08:00. As the morning unfolds, the intensity surges, with a notable jump to 4 at 09:00, and skyrocketing to a striking 11 by 12:00. The highest level of 12 is recorded at 13:00, indicating the critical hour for sun exposure, before a gradual decline begins. By 14:00, it dips to 10, followed by a steady drop to 8 at 15:00, and continues to decrease into the evening. The UV Index settles back down to 1 by 18:00, tapering off into the night. It's a stark reminder of the sun's powerful influence, emphasizing the importance of sun safety during peak hours.

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
08:002low45 min
09:004moderate30 min
10:007high25 min
11:009very high15 min
12:0011extreme10 min
13:0012extreme10 min
14:0010very high15 min
15:008very high15 min
16:005moderate30 min
17:003moderate30 min
18:001low45 min
19:001low45 min

Monthly UV Index Trends in Chengdu

Throughout the year, the UV Index exhibits significant seasonal changes, peaking during the late spring and summer months. January and December show moderate UV levels (Index 5 and 4, respectively), allowing for more extended exposure times of up to 30 minutes without risk of burning. However, as we move into February (Index 6, high) and especially March (Index 8, very high), the risk increases sharply, with burn times decreasing to 25 minutes and 15 minutes, respectively. The highest risk occurs from April to September, where the UV Index reaches extremes of 10 to 12, which means a burn time of just 10 minutes under direct sunlight. Visitors and residents should take necessary precautions during these high-risk months—particularly from May to August—by wearing protective clothing, sunglasses, and sunscreen, while seeking shade during peak hours to minimize exposure and prevent skin damage. As autumn approaches, October and November herald a drop in UV levels, allowing for more safe outdoor activities with increased burn times.

Monthly Maximum UV Index for Chengdu, China

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Chengdu. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec568101211111110854
Data source: Statistical UV Index data for Chengdu, 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 Chengdu UV Index with Other China Cities

The table above highlights how UV exposure in Chengdu 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.
Chengdu's solar exposure compared to other cities in China. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Beijing UVI2358991097642
Chengdu568101211111011864
Shanghai UVI568101011121111864
Guangzhou UVI79111213131312111097
Shenzhen UVI710121214131313121197