UV Index in Chengnan, China

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents and visitors of Chengnan, China, where the sun's rays can be particularly intense, especially during peak hours. With a climate characterized by warm summers and ample sunshine, awareness of UV levels is essential for preventing sunburn and protecting skin health. The data reveals that from 11 AM to 1 PM, the UV Index peaks at a staggering 13, indicating a very high risk of harm from unprotected sun exposure. By staying informed of these levels, you can take proactive measures to shield yourself from potential skin damage and enjoy your time outdoors safely.

Hourly UV Index in Chengnan

As the sun climbs higher, the UV Index reaches its peak intensity around 12:00 PM, soaring to a striking 13—a clear signal for outdoor enthusiasts to take precautions. The morning hours start gently, with a low of 1 at 07:00 AM, gradually escalating to 6 by 09:00 AM and hitting 9 at 10:00 AM. By 11:00 AM, the sun begins to assert itself with a 12. However, as the afternoon progresses, the UV intensity starts to wane, dropping to 10 at 2:00 PM, and tapering off to a mere 2 by 5:00 PM. As daylight diminishes, the UV Index dwindles to 0 by 7:00 PM, inviting a much-needed respite from the sun’s relentless rays. Always be vigilant and protect your skin during those 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.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 min
16:00	4	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 Chengnan

The UV Index experiences notable seasonal fluctuations, peaking during the summer months. High-risk months occur from February to September, with March through August classified as extreme, where the UV Index reaches as high as 13 and the burn time is as short as 10 minutes. Residents and visitors are strongly advised to take precautions during these times, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, especially between 10 AM and 4 PM when UV exposure is at its peak. As we transition into the fall and winter months, the UV Index drops significantly, but caution should still be exercised in early spring and late autumn, where levels remain very high.

Monthly Maximum UV Index for Chengnan, China

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

The table above highlights how UV exposure in Chengnan 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.

Chengnan'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
Chengnan	7	9	11	11	13	13	13	13	11	9	8	6
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