UV Index in Siwang, China

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of Siwang, China—a region characterized by its humid subtropical climate (Cfa) that can lead to significant sun exposure throughout the year. Awareness of UV levels helps in preventing sunburn and maintaining skin health, particularly during the peak hours when the index can soar as high as 12 around noon. By grasping the potential risks associated with UV radiation, you can take proactive measures to protect yourself and enjoy the sun safely, making UV Index awareness an essential part of daily life in Siwang.

Hourly UV Index in Siwang

The UV Index today showcases a significant rise in solar intensity as the day progresses. Starting at a mild 2 at 07:00, the UV levels climb steadily, reaching a moderate 3 by 08:00. A noticeable shift occurs between 09:00 and 10:00, where the index surges to an impressive 8. The peak intensity is recorded at 12:00 with a striking 12, indicating a critical level of UV exposure. Following this zenith, the index gradually declines, dropping to 9 at 14:00 and further to 7 by 15:00. As the sun sets, UV levels diminish significantly, returning to 2 at 17:00 and tapering off to 1 by 18:00 and 19:00. It's a day to be sun-smart, especially during the midday hours!

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	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	11	extreme	10 min
14:00	9	very high	15 min
15:00	7	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 Siwang

Seasonal UV changes indicate a significant increase in ultraviolet radiation from early spring through summer, peaking in the summer months of June, July, and August, where the UV Index reaches a severe level of 12 and burn times decrease to just 10 minutes. High-risk months include March to September, during which the UV Index exceeds 7, categorized as very high or extreme. Visitors and residents are advised to take precautions during these periods by seeking shade, wearing protective clothing, and applying sunscreen regularly, especially when spending extended time outdoors. In contrast, the UV Index drops to a moderate level by December, providing a safer environment for outdoor activities.

Monthly Maximum UV Index for Siwang, China

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

The table above highlights how UV exposure in Siwang 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.

Siwang'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
Siwang	6	7	8	10	10	12	12	12	10	8	6	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