UV Index in Jiangnan, China

Last updated: August 1, 2025

Awareness of the UV Index is crucial in Jiangnan, China, a region renowned for its beautiful landscapes but also exposed to varying levels of UV radiation. Understanding these UV levels is essential not only for preventing sunburn but also for maintaining long-term skin health. With a humid subtropical climate (Cfa), Jiangnan experiences significant UV exposure, especially during peak hours when the index can soar to a maximum of 12 around midday. By staying informed about the daily UV Index, residents and visitors can take proactive measures to protect themselves under the sun, ensuring that their time outdoors remains enjoyable and safe.

Hourly UV Index in Jiangnan

As the sun ascends, the UV Index rises dramatically. At 07:00, it starts at a gentle 2, offering a safe environment for morning activities. By 08:00, it climbs to 4, signaling the need for some sun protection. The intensity peaks at 10:00 with a striking 10, reaching its maximum at 11:00 and 12:00 with a peak UV Index of 12—definitely time to seek shade or lather on the sunscreen! As the afternoon progresses, intensity begins to wane, dropping to 9 by 14:00, then 6 at 15:00. The sun retreats, and by 17:00, we see a much softer 2, transitioning to a cozy 1 at 18:00 and finally settling at a safe 0 by 19:00. Overall, this UV Index profile underscores 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.
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	11	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Jiangnan

Throughout the year, UV exposure varies significantly, with the highest risk months being from April to September, when the UV Index reaches extreme levels of 11 to 13. The months of February and March also display very high UV levels, peaking in March with an Index of 10. During these high-risk months, the recommended maximum burn times drop to just 10 to 15 minutes. Visitors and residents are strongly advised to take precautionary measures by wearing protective clothing, applying sunscreen, and seeking shade during peak sun hours to minimize the risk of skin damage. As the seasons change to October through December, while UV levels decrease to high and very high, proactive sun safety remains important to enjoy outdoor activities safely.

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
Jiangnan	6	9	10	11	12	13	12	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