UV Index in Jiangnan, China

Last updated: June 2, 2025

In Jiangnan, China, awareness of the UV Index is crucial for protecting skin health and preventing sunburn. With a climate characterized by warm, humid summers, understanding UV levels is essential, especially during peak hours when the index can soar to a maximum of 13 around mid-afternoon. By recognizing the daily fluctuations in UV exposure—from a mild 1 at dawn to an intense 12 at noon—residents and visitors can take proactive measures to safeguard their skin while enjoying the region's beautiful outdoor activities. Stay informed and take care; your skin will thank you!

Hourly UV Index in Jiangnan

As the day unfolds, the UV Index steadily rises, peaking at a staggering 13 by 1:00 PM, indicating a high risk of harm from unprotected sun exposure. Early morning hours start with a modest 1 at 7:00 AM, increasing to 2 by 8:00 AM. By 10:00 AM, the index climbs to 7, and by 11:00 AM, it reaches 10, prompting serious sun protection measures. The intensity wanes in the afternoon, dropping to 8 at 3:00 PM, before descending further to 3 by 5:00 PM. As dusk approaches, the UV Index dwindles to a safe 1 by 6:00 PM, leaving us with a stark reminder of the sun's power during peak hours in the middle of the day.

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	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Jiangnan

Throughout the year, seasonal UV changes reveal significant variations in the UV Index, with the highest levels occurring during the summer months. High-risk months include February through October, particularly from March to September when the UV Index consistently reaches extreme levels of 11 to 13, resulting in a short burn time of just 10 minutes for unprotected skin. Residents and visitors are strongly advised to take precautions during these months, such as wearing sunscreen, protective clothing, and seeking shade, especially between 10 AM and 4 PM when the sun's rays are most intense. In contrast, the risk decreases in January, December, and November, but individuals should still remain vigilant in February and early November when the UV Index is marked as very high.

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	11	11	13	13	13	13	11	11	8	7
Shenzhen UVI	7	10	12	12	14	13	13	13	12	11	9	7