UV Index in Jiangnan, China

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Jiangnan, China, especially given the region's humid subtropical climate (Cwa) and its associated sun exposure risks. As UV levels can soar to a maximum of 14 around midday, being aware of these fluctuations can significantly mitigate the chances of sunburn and long-term skin damage. By keeping track of UV ratings, you can take proactive measures to protect your skin, ensuring you enjoy the beautiful sunny days in Jiangnan while keeping your health a top priority.

Hourly UV Index in Jiangnan

The UV Index for the day presents a dynamic shift in sun exposure, climbing steadily from a safe 1 at 07:00 to an impressive peak of 14 at 12:00. As the sun rises, so does the intensity of its rays, reaching a notable 12 at 11:00. Between 10:00 and 14:00, the UV Index remains high, urging caution—particularly at 11:00 and 12:00, when protective measures are essential. As the afternoon progresses, values gradually dip, descending to 8 at 15:00 and further to 2 by 17:00. By evening, the UV Index falls to 0 at 19:00, signaling a welcome retreat from the sun's harmful rays. Remember to stay sun savvy during peak hours for your skin’s health!

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	5	moderate	30 min
10:00	9	very high	15 min
11:00	12	extreme	10 min
12:00	14	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 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 Jiangnan

Throughout the year, the UV Index experiences significant fluctuations, with high-risk months typically occurring from February to September. During this period, UV levels peak at 14 in May, while March through September consistently show extreme ratings, resulting in a burn time of only 10 minutes. Notably, January and December have a high category with burn times of 25 minutes, while October and November fall into the very high category with a burn time of 15 minutes. Therefore, it is imperative that visitors and residents take appropriate precautions during high-risk months by wearing sunscreen, protective clothing, and seeking shade to minimize UV exposure.

Monthly Maximum UV Index for Jiangnan, China

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

The table above highlights how UV exposure in Jiangnan 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.

Jiangnan'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
Guangzhou UVI	7	9	11	12	13	13	13	12	11	10	9	7
Jiangnan	7	10	12	12	14	13	13	13	11	10	9	7
Shenzhen UVI	7	10	12	12	14	13	13	13	12	11	9	7