UV Index in Guangzhou, China

Last updated: May 3, 2025

Understanding the UV Index is crucial for everyone in Guangzhou, China, where the subtropical climate can lead to significant sun exposure. Awareness of UV levels not only helps in preventing sunburn and safeguarding skin health but also empowers residents and visitors to make informed decisions about outdoor activities. With peak UV readings soaring to a high of 13 around noon, it’s vital to stay aware of potential risks, especially during the hottest months when the sun's rays are most intense. Stay sun-safe by checking the UV Index and taking necessary precautions to protect your skin!

Hourly UV Index in Guangzhou

As the sun rises, the UV Index starts its slow climb, peaking at 13 between noon and 1 PM, signaling extreme UV exposure. The day begins gently at 7 AM with a minimal index of 1, but by 10 AM, it reaches 9, urging sun-sensitive individuals to seek protection. The highest reading of 13 persists for two hours, making midday the most critical time for sun safety. As the afternoon rolls in, the index gradually decreases, dipping to 7 by 3 PM, and further waning into the evening with values of 4 at 4 PM, 2 at 5 PM, and falling to a comfortable 1 by 6 PM. Finally, the UV Index settles at 0 after sunset, marking the end of a sun-drenched day.

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	3	moderate	30 min
09:00	5	moderate	30 min
10:00	9	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 min
15:00	7	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 Guangzhou

As the seasons change, so does the UV Index, indicating varying levels of sun exposure risk throughout the year. January and December feature a high UV Index of 7, with a burn time of 25 minutes, while February sees an increase to 9 (very high, 15 min). The risk of UV exposure peaks in the spring and summer months, with March to August experiencing an extreme UV Index ranging from 11 to 13, corresponding to a dangerous 10-minute burn time. September sees a slight decrease to 11 (extreme), followed by October and November, where UV levels drop to 9 and 10 (very high) respectively. Given these trends, it's crucial for visitors and residents to exercise caution during the high-risk months of March through August by wearing protective clothing, applying sunscreen frequently, and seeking shade during peak sun hours to minimize the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Guangzhou, China

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

The table above highlights how UV exposure in Guangzhou 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.

Guangzhou'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
Guangzhou	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