UV Index in Dongguan, China

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents of Dongguan, China, as it serves as a key indicator of sun exposure and potential skin damage. Being aware of UV levels helps in preventing sunburn and protecting overall skin health, especially during the peak hours when the UV Index is at its highest. Dongguan’s humid subtropical climate (Cfa) leads to intense sunlight for much of the year, making the understanding of UV risks essential. With midday UV Index readings reaching up to 13, it’s vital to stay informed and take appropriate sun safety measures to enjoy the outdoors without compromising your health.

Hourly UV Index in Dongguan

The UV Index for the day showcases a significant rise in intensity as the sun reaches its peak. Starting at a moderate 2 at 07:00, the index climbs steadily, hitting 3 by 08:00. The excitement builds as the clock ticks closer to midday, peaking at an impressive 13 by 12:00—the time when sun protection is most crucial. Even at 13:00, the index remains high at 12 before beginning a gradual decline. By 16:00, it dips to 4, and as evening approaches, it drops to a gentle 1 by 18:00 and ultimately fades to 0 by 19:00. This pattern highlights the importance of staying vigilant against UV exposure during the mid-morning to early afternoon 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	1	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	9	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	3	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 Dongguan

Throughout the year, the UV Index experiences significant seasonal changes, peaking during the summer months. Notably, March to September presents the highest risk of UV exposure, with the index reaching extremes of 11 to 13. February and October classify as very high risk months, while January and December are categorized as high but still warrant caution. For optimal safety, visitors and residents should prioritize sun protection during the high-risk months of March through September, where the burn time can be as little as 10 minutes. It's crucial to apply sunscreen regularly, wear protective clothing, and seek shade, especially between 10 AM and 4 PM, when UV radiation is at its strongest.

Monthly Maximum UV Index for Dongguan, China

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

The table above highlights how UV exposure in Dongguan 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.

Dongguan'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
Dongguan	7	9	11	12	13	13	13	13	11	10	8	7
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