UV Index in Guanzhou, China

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Guangzhou, China, where the sun’s rays can be particularly intense. Being aware of UV levels helps in preventing sunburn and maintaining skin health, essential in a climate characterized by hot summers and high humidity. With peak UV levels soaring to 12 during midday hours, it's vital to take precautions to protect yourself from the harmful effects of UV exposure. As you enjoy the vibrant culture and outdoor activities in this bustling city, stay informed about the UV Index to ensure your skin stays safe under the sun.

Hourly UV Index in Guanzhou

The UV Index dramatically rises as the day progresses, peaking in the early afternoon. Starting at a modest 1 at 07:00, the UV exposure quickly increases, reaching 10 by 11:00 and peaking at a dangerous 12 from 12:00 to 13:00. As the sun begins to set, the index gradually declines, falling to 5 by 16:00, and tapering off to a low 1 by 18:00 and 19:00. This ebb and flow underscores the importance of sun safety, especially during those peak hours when the UV Index is at its highest. Stay protected!

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	5	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Guanzhou

Throughout the year, the UV Index exhibits significant variations, with peak levels occurring from March to September. High-risk months include April through September, where the UV Index reaches extreme levels of 11 to 13, resulting in a burn time of only 10 minutes. In contrast, the UV Index is moderate in December (5) and low risk in January (6) and February (7), with longer burn times of 25 to 30 minutes. Visitors and residents are advised to take extra precautions during the high-risk months, including wearing protective clothing, applying sunscreen regularly, and seeking shade during peak sun hours to minimize the risk of UV exposure.

Monthly Maximum UV Index for Guanzhou, China

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

The table above highlights how UV exposure in Guanzhou 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.

Guanzhou'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
Guanzhou	6	7	9	11	12	12	13	12	11	9	7	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