UV Index in Xihu, China

Last updated: June 2, 2025

Understanding the UV Index in Xihu, China is crucial for maintaining optimal skin health and preventing harmful sunburns. With its humid subtropical climate (Cfa), Xihu experiences significant UV exposure, particularly during peak hours when the index can soar to levels of 12. This high UV index indicates a potential risk for skin damage, underlining the importance of being aware of UV levels as you enjoy the beautiful surroundings. Familiarizing yourself with the daily UV index helps you take proactive measures to protect your skin and reduce the long-term effects of sun exposure. Stay informed and safeguard your health while soaking up the sun in Xihu!

Hourly UV Index in Xihu

The UV Index begins its rise at 7:00 AM with a low of 2, gradually climbing to a moderate 3 by 8:00 AM. By 9:00 AM, it reaches 6, but it's at 10:00 AM when the sun truly bears down, peaking at a high of 9. The intensity continues to soar, hitting a maximum of 12 at 12:00 PM, making it the most UV-active hour of the day. From there, it subtly declines, dropping back to 11 at 1:00 PM, and 9 at 2:00 PM. The afternoon brings relief as the index falls to 6 by 3:00 PM and continues to decrease, settling at 4 by 4:00 PM. As the day winds down, the UV Index dips to 2 by 5:00 PM and further to a safe 1 by 6:00 PM and stays consistent through 7:00 PM. Stay sun-smart and avoid peak UV hours for your skin's safety!

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	2	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	4	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 Xihu

Throughout the year, UV radiation levels vary significantly, with high-risk months typically spanning from March to September. The UV Index peaks during late spring and summer, reaching an extreme level of 12 from June to August, resulting in a burn time of just 10 minutes. As the year progresses, January and February experience a high UV Index of 6 and 7, respectively, with longer burn times of 25 minutes. In contrast, December sees a drop to a moderate UV Index of 5, where the burn time extends to 30 minutes. Visitors and residents should exercise caution during the very high and extreme UV Index months by wearing protective clothing, using a broad-spectrum sunscreen, and seeking shade, especially during peak sunlight hours.

Monthly Maximum UV Index for Xihu, China

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

The table above highlights how UV exposure in Xihu 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.

Xihu'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
Xihu	6	7	9	10	11	12	12	12	10	9	7	5
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