UV Index in Changzhou, China

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of Changzhou, China, where the subtropical climate can lead to significant sun exposure, especially during peak hours. With UV levels often reaching as high as 12 around noon, being aware of these fluctuations is essential for sunburn prevention and maintaining overall skin health. The potential for skin damage increases with elevated UV levels, making it vital to know when to seek shade or apply sunscreen. As you navigate the warm summers and lush greenery typical of this region, staying informed about the UV Index can help you enjoy the outdoors safely while protecting your skin from harmful rays.

Hourly UV Index in Changzhou

As the day unfolds, the UV Index experiences a dramatic rise, peaking at 12 between noon and 1 PM, indicating a high risk of harm from unprotected sun exposure. Early morning begins with a gentle 1 at 7 AM, gradually climbing to a moderate 5 by 9 AM. Come 10 AM, the sun’s intensity escalates to a striking 8, setting the stage for the day’s most potent rays. After the afternoon peak, the index gradually descends, falling to a moderate 5 by 4 PM and tapering off to a safe 1 as sunlight wanes, creating a dynamic dance of UV exposure that highlights the importance of sun safety throughout 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	5	moderate	30 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Changzhou

The UV Index experiences significant fluctuations throughout the year, with high-risk months typically occurring from February to September. During this period, the UV Index reaches extreme levels, peaking at 13 in both May and July, with a burn time as short as 10 minutes. Visitors and residents should exercise caution and take preventative measures, such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours. In contrast, January and December present lower risks with UV Index values of 7 and longer burn times of 25 minutes, while October and November are marked by very high levels, necessitating similar precautions. Emphasis on sun safety is crucial, especially during the summer months, to protect against harmful UV exposure.

Monthly Maximum UV Index for Changzhou, China

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

The table above highlights how UV exposure in Changzhou 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.

Changzhou'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
Changzhou	7	9	11	12	13	12	13	13	11	10	8	7
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