UV Index in Chajian, China

Last updated: July 2, 2025

In Chajian, China, being aware of the UV Index is crucial for safeguarding your health and enjoying the outdoors responsibly. Understanding UV levels not only helps in preventing sunburn but also plays a vital role in maintaining overall skin health. With Chajian's humid subtropical climate, the sun can be particularly intense, especially around midday when the UV Index peaks at a staggering 11. By staying informed about the UV Index, residents and visitors can take necessary precautions to enjoy the sun safely while minimizing the risks associated with high UV exposure.

Hourly UV Index in Chajian

As the day unfolds, the UV Index begins its ascent, signaling the need for sun protection. Starting at a mild 2 at 07:00, it climbs steadily, reaching 3 by 08:00. The real intensity kicks in by 09:00, peaking at a striking 11 by noon. This is the moment when overexposure can become a concern, urging everyone to slather on that sunscreen. For the rest of the afternoon, the UV Index remains high until 15:00, when it gradually declines, settling back to a safe 2 by 17:00. As daylight wanes, the risks diminish with the index dropping to a mere 1 by 19:00. It’s a vivid reminder of the sun's power—choose your outdoor activities wisely!

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.
Time	UVI	Category	Time to Burn
07:00	2	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	11	extreme	10 min
13:00	10	very high	15 min
14:00	8	very high	15 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Chajian

Throughout the year, the UV Index exhibits significant seasonal fluctuations that impact sun exposure risks. High-risk months typically span from March to October, where the UV Index peaks at 11 during the summer months of June, July, and August, indicating an extreme risk of harm from unprotected sun exposure and a burn time as short as 10 minutes. Visitors and residents should exercise caution during this period, seeking shade and using sunscreen with high SPF. As the year transitions, the risk lowers in November and December, where the UV Index drops back to 4 or 5, categorizing exposure as moderate, and allowing for 30 minutes of safe sun exposure. It is crucial for everyone to remain vigilant about sun safety measures year-round, especially in the height of summer.

Monthly Maximum UV Index for Chajian, China

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Chajian. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Chajian, 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 Chajian UV Index with Other China Cities

The table above highlights how UV exposure in Chajian 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.

Chajian's solar exposure compared to other cities in China. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Beijing UVI	2	3	5	8	9	9	10	9	7	6	4	2
Chajian	4	5	8	10	10	11	11	11	9	8	5	4
Chengdu UVI	5	6	8	10	12	11	11	10	11	8	6	4
Shanghai UVI	5	6	8	10	10	11	12	11	11	8	6	4
Guangzhou UVI	7	9	11	12	13	13	13	12	11	10	9	7
Shenzhen UVI	7	10	12	12	14	13	13	13	12	11	9	7