UV Index in Siwang, China

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Siwang, China, where sun exposure can significantly impact skin health. With UV levels often peaking as high as 12 during midday, awareness of these risks is essential for preventing sunburn and other skin-related issues. Siwang's Cfa climate brings warm summers, increasing the likelihood of exposure to harmful ultraviolet rays. By staying informed about the UV Index, you can take proactive steps to protect your skin and enjoy the outdoors safely.

Hourly UV Index in Siwang

The UV Index on this sunny day showcases a striking pattern, starting from a mere 1 at 07:00 and steadily climbing as the sun rises. By 09:00, it reaches 5, indicating an increasing need for sun protection. The peak occurs at 12:00, where it soars to a blistering 12—a clear reminder to seek shade and apply sunscreen. The intensity begins to wane in the afternoon, dropping to 9 at 14:00 and further declining to 4 by 16:00. As evening approaches, the index gently falls back to 1 by 19:00, marking the end of a day characterized by heightened sun exposure. Stay safe under the sun!

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	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