UV Index in Xiyan, China

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of Xiyan, China, where the sun's intensity can fluctuate dramatically throughout the day. With peak UV levels reaching as high as 13 during midday, it's essential to stay informed about UV exposure to prevent sunburn and protect skin health. The Cfa climate of Xiyan, characterized by hot summers, increases these risks, making awareness not just important, but vital. By monitoring UV levels, residents can take proactive measures for their well-being, ensuring that sunny days remain enjoyable while minimizing the potential for skin-related issues.

Hourly UV Index in Xiyan

The UV Index throughout the day presents a fascinating picture of sun intensity. Starting at a mild 1 at 07:00, the index gradually climbs, reaching 3 by 08:00. As the morning progresses, it peaks at an impressive 13 at 12:00 and 13:00, signaling a critical time for sun protection. The intensity begins to decline in the afternoon, dropping to 8 by 15:00. By 18:00, it retreats back to 1, demonstrating the inevitable waning of sunlight as the day draws to a close. This data underscores the importance of being sun-smart, particularly between 10:00 and 15:00, 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	3	moderate	30 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	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Xiyan

Throughout the year, UV Index levels exhibit significant seasonal variations, peaking from March to August when rates reach 13 or 11, categorized as extreme. The months of February through September represent high-risk periods for sun exposure, especially in March and May, where the burn time is reduced to just 10 minutes. Visitors and residents are strongly advised to practice sunscreen application, wear protective clothing, and seek shade during these months to minimize the risk of sunburn. As the year progresses into October and November, UV levels decrease slightly, but caution is still warranted, with UV Index ratings of 10 and 8 respectively, suggesting a burn time of 15 minutes. In contrast, the winter months of January and December offer relatively lower UV exposure, yet still require some sun protection with an index of 7 and 6 respectively.

Monthly Maximum UV Index for Xiyan, China

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

The table above highlights how UV exposure in Xiyan 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.

Xiyan'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
Xiyan	7	10	11	11	13	13	13	13	11	10	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