UV Index in Chengtan, China

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Chengtan, China, where the risk of harmful ultraviolet (UV) exposure can significantly impact skin health. As the day progresses, the UV levels can reach a peak of 12 around noon, making it essential to be aware of these fluctuations to prevent sunburn and long-term skin damage. With Chengtan's humid subtropical climate (Cfa), the combination of sunshine and high UV exposure underscores the importance of protecting your skin, especially during the peak hours of sunlight when values soar. Stay informed to enjoy the beautiful weather safely!

Hourly UV Index in Chengtan

The UV Index data reveals a striking pattern throughout the day. Mornings start off gently, with a maximum of 2 at 07:00 and climbing to 4 by 08:00. However, from 09:00 to 12:00, the sun's intensity peaks dramatically, reaching a high of 12 at 12:00—a clear signal for sun safety! As the afternoon progresses, the index dips steadily, showcasing 11 at 13:00, before descending to 5 by 15:00. The late afternoon and evening bring further relief, with readings dropping back down to 1 at 18:00 and promising a UV-free end to the day by 19:00. Plan outdoor activities wisely to enjoy the most radiant moments while staying safe!

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	4	moderate	30 min
09:00	7	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 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	0	low	45 min

Monthly UV Index Trends in Chengtan

The UV Index exhibits significant seasonal fluctuations, with high-risk months occurring from March to September, when values reach 10 or higher, indicating very high to extreme exposure categories. Notably, May through August has the peak UV Index of 12, where a mere 10 minutes of exposure can lead to skin damage. In contrast, the UV Index drops to 6 in January, February, and November, and even 5 in December, marking safer months for sun exposure. Visitors and residents are strongly advised to take precautions during high-risk months, including wearing protective clothing, applying sunscreen regularly, and seeking shade during peak hours to minimize the risk of sunburn and long-term skin damage. Always be mindful of your burn time, especially when the UV Index is highest.

Monthly Maximum UV Index for Chengtan, China

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Chengtan. 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 Chengtan, 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 Chengtan UV Index with Other China Cities

The table above highlights how UV exposure in Chengtan 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.

Chengtan'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
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
Chengtan	6	7	10	10	11	12	12	12	11	8	6	5
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