UV Index in Sihu, China

Last updated: July 2, 2025

In Sihu, China, understanding the UV Index is essential for safeguarding your skin against harmful UV radiation. With typical UV levels peaking around midday, knowledge of these levels can significantly contribute to sunburn prevention and maintaining overall skin health. Sihu's climate, classified as Cwa, presents its own unique set of UV exposure risks, particularly during the warmer months. By being aware of the UV Index, residents and visitors can make informed decisions about sun protection and enjoy the beautiful outdoors safely.

Hourly UV Index in Sihu

The UV Index today presents a fascinating hourly journey, peaking at a robust 10 at 12:00 PM, indicating the strongest sun exposure of the day. As the sun climbs higher, the index rises steadily from a mild 2 at 07:00 to a noteworthy 9 by 11:00. The midday hours command attention with a high of 10, urging caution for those stepping outdoors. Following this zenith, the UV intensity begins to decline, falling back to 5 by 15:00 and tapering off to a gentle 1 by evening, making the late hours more forgiving for outdoor activities. Always stay vigilant with sun safety, especially during those peak 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	6	high	25 min
10:00	8	very high	15 min
11:00	9	very high	15 min
12:00	10	very high	15 min
13:00	9	very high	15 min
14:00	7	high	25 min
15:00	5	moderate	30 min
16:00	3	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 Sihu

Seasonal UV changes indicate a significant rise in ultraviolet exposure as the year progresses. From March to September, the UV Index reaches its peak, categorizing these months as high-risk for sunburn, especially from April through August, when the UV Index consistently remains at 10 (very high). During these high-risk months, burn times decrease to just 15 minutes, emphasizing the need for protective measures. Residents and visitors are advised to take precautions such as wearing sunscreen, protective clothing, and sunglasses, especially during peak sun hours. As we move into October and November, the UV Index falls, allowing for more moderate sun exposure with burn times of 25 and 30 minutes, respectively. Nonetheless, vigilance remains necessary throughout the year to mitigate UV-related health risks.

Monthly Maximum UV Index for Sihu, China

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

The table above highlights how UV exposure in Sihu 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.

Sihu'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
Sihu	3	5	7	9	10	10	10	10	9	7	5	3
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
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