UV Index in Changzhou, China

Last updated: July 2, 2025

In Changzhou, China, being aware of the UV Index is crucial for safeguarding your skin against harmful ultraviolet rays. Understanding UV levels is vital not only for effective sunburn prevention but also for promoting long-term skin health. With a Cfa climate that often experiences high UV exposure, particularly during mid-day hours where the index can soar to 13, residents and visitors must be proactive in protecting themselves. Stay informed about the UV Index to enjoy the sun safely while minimizing risks associated with skin damage and other UV-related health issues.

Hourly UV Index in Changzhou

The UV Index during the day reveals a notable peak in sun exposure. Starting at 07:00 with a gentle 1, it gradually climbs to 2 by 08:00. As the sun rises higher, the index surges dramatically, hitting 5 at 09:00, and reaching a striking 8 by 10:00. The intensity peaks at 12:00 with a scorching 13, remaining high until 13:00. After that, it starts to decline, returning to 11 at 14:00 and falling to 8 by 15:00. As the afternoon wanes, the index drops to 5 at 16:00, and finally settles back to 1 by 18:00 and 19:00. This data highlights the importance of sun safety measures during the midday hours when UV exposure is at its highest.

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	13	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	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