UV Index in Guihu, China

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Guihu, China, where sun exposure can significantly impact skin health. The UV Index provides vital information about the intensity of ultraviolet (UV) radiation, guiding individuals in taking necessary precautions to prevent sunburns and long-term skin damage. With Guihu's Cfa climate characterized by warm, humid summers, UV levels can soar to a maximum of 13 around midday, making it essential to stay informed about daily UV changes. By understanding these levels, you can enjoy the outdoors safely while protecting your skin from harmful effects.

Hourly UV Index in Guihu

The UV Index shows a dynamic progression throughout the day, starting from a mild 2 at 07:00 and climbing steadily to a peak of 13 by 12:00. As the sun reaches its zenith, the index reflects the intensity of ultraviolet rays, hitting 12 at 13:00 before gradually declining. By the afternoon, it slips down to 6 at 15:00, then diminishes further to 2 at 17:00 and finally to a mere 0 as twilight descends at 19:00. It's clear that the highest risk for sun exposure occurs midday, making it essential to protect your skin 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	4	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Guihu

Throughout the year, UV Index levels display significant seasonal variation, with high-risk months primarily from February to September. Notably, April to August carry the most extreme ratings, reaching a peak UV Index of 13, which can incite skin burning in as little as 10 minutes of unprotected exposure. Visitors and residents should take extra precautions during this period—considering protective clothing, sunscreen application, and seeking shade during peak sun hours from 11 AM to 4 PM. January and December present lower risks with a UV Index of 6, allowing for slightly longer burn times of 25 minutes, but vigilance is still essential year-round to ensure skin safety.

Monthly Maximum UV Index for Guihu, China

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

The table above highlights how UV exposure in Guihu 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.

Guihu'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
Guihu	6	9	10	12	12	13	13	13	12	9	8	6
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