UV Index in Hongsihu, China

Last updated: June 2, 2025

In Hongsihu, China, understanding the UV Index is crucial for protecting your skin from harmful ultraviolet rays. With peak UV levels often reaching a staggering 12 during midday, the risk of sunburn and long-term skin damage significantly escalates. As a BWk climate zone, Hongsihu experiences sunny days that can amplify these risks. By staying informed about the UV Index, you can take proactive measures to safeguard your skin's health and enjoy the outdoors with confidence.

Hourly UV Index in Hongsihu

The UV Index today offers a lively dance of sun intensity, peaking at 1 at 07:00 and gradually rising to a brisk 9 by 11:00. As the sun hits its zenith, the index reaches an impressive 12 at 12:00 and a staggering 13 at 13:00, signaling the need for effective sun protection. As the afternoon wanes, the index gently slides down to 10 at 15:00 and continues its decline to a mellower 5 by 17:00. Finally, the sun's intensity diminishes to 2 at 18:00, before resting back at 1 by 19:00. Embrace the sun wisely today!

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	2	low	45 min
09:00	4	moderate	30 min
10:00	6	high	25 min
11:00	9	very high	15 min
12:00	12	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	10	very high	15 min
16:00	7	high	25 min
17:00	5	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Hongsihu

As the seasons change, so do the levels of ultraviolet (UV) radiation exposure. From January to February, the UV Index rises from 3 to 5, classified as moderate, indicating a burn time of approximately 30 minutes. March marks a significant shift with a high UV Index of 7, shortening the burn time to 25 minutes. The peak months for UV exposure are April through August, during which the Index sky-rockets to extreme levels: 10 to 13 and burn times drop to as little as 10 minutes. September sees a slight decline to 9, but still qualifies as very high, while October brings the Index back down to 7. Not until November and December, when the Index returns to moderate levels of 3 and 4 respectively, can residents and visitors enjoy longer burn times of 30 minutes. During high-risk months—April to August—it is crucial to take precautions such as applying sunscreen, wearing protective clothing, and seeking shade during peak hours to minimize UV exposure and protect skin health.

Monthly Maximum UV Index for Hongsihu, China

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

The table above highlights how UV exposure in Hongsihu 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.

Hongsihu'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
Hongsihu	3	5	7	10	11	13	12	11	9	7	4	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