UV Index in Sihu, China

Last updated: June 2, 2025

In Sihu, China, understanding the UV Index is crucial for safeguarding your skin and overall health. With peak UV levels reaching a dangerous 10 around midday, awareness of these fluctuations can be the difference between a fun day outdoors and painful sunburn. Given Sihu's Cwa climate, characterized by hot summers and ample sunshine, it’s essential to monitor UV exposure to prevent long-term skin damage. Stay informed, protect yourself, and enjoy all the beauty Sihu has to offer while minimizing your risk!

Hourly UV Index in Sihu

As the sun rises, the UV Index begins its climb, peaking at a maximum of 10 between 11:00 AM and 12:00 PM. Early bird sun-seekers see a gradual increase from 2 at 07:00 to a more pronounced 6 by 09:00. Those venturing out around 10:00 AM should be cautious, as the index hits an intense 8. A quick drop starts post-noon, with 9 at 1:00 PM, tapering down to 5 by 3:00 PM. The afternoon sun yields a gentle decline, wrapping up the day with a 2 at 5:00 PM and falling to 1 by 6:00 PM, making the late hours much safer for outdoor activities. It’s a reminder to stay protected during peak hours when the UV rays are at their strongest!

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	10	very high	15 min
12:00	10	very high	15 min
13:00	9	very high	15 min
14:00	8	very high	15 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