UV Index in Dainan, China

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Dainan, China, where the subtropical climate can lead to significant sun exposure throughout the year. Being aware of the UV levels not only helps prevent sunburn but also plays a vital role in maintaining long-term skin health. With peak UV Index readings reaching 10 around midday, it's important to take precautions when the sun is at its strongest. Whether you’re enjoying outdoor activities or simply stepping outside, knowing the UV Index can help you protect yourself from harmful rays and enjoy the sunny days in Dainan safely.

Hourly UV Index in Dainan

As the sun rises, the UV Index starts low at 2 at 7:00 AM, gradually climbing to a moderate 4 by 8:00 AM. The intensity peaks dramatically at 10:00 AM, reaching an impressive 10—a clear signal for outdoor enthusiasts to take precautions. From 11:00 AM to 1:00 PM, the UV Index remains steady at this maximum level, ensuring that midday sun exposure can be quite harmful. After 2:00 PM, the index begins its descent, dropping to 8 by 2:00 PM and further declining to 5 at 3:00 PM. As the afternoon wanes, the UV Index falls to 3 by 4:00 PM, with evening hours presenting little risk, dipping to 1 at 5:00 PM and finally dropping to 0 by 7:00 PM. Overall, a midday outing requires caution, but post-lunch hours offer safer conditions for sun lovers.

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	6	high	25 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	10	very high	15 min
13:00	10	very high	15 min
14:00	8	very high	15 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Dainan

Throughout the year, the UV Index shows significant seasonal changes, with the highest levels occurring during the summer months. From July to August, the UV Index reaches an extreme level of 11, resulting in a burn time of just 10 minutes. March through September also sees very high to extreme UV levels, with April and May maintaining a very high index of 10, necessitating caution for outdoor activities. Conversely, the months of January and December have the lowest UV levels, categorized as moderate, with a burn time of 30 minutes. For visitors and residents, it's crucial to practice sun safety during high-risk months (March to September) by wearing protective clothing, using broad-spectrum sunscreen, and limiting sun exposure during peak hours.

Monthly Maximum UV Index for Dainan, China

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

The table above highlights how UV exposure in Dainan 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.

Dainan'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
Dainan	4	6	8	10	10	10	11	11	10	7	5	4
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