UV Index in Changsha, China

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Changsha, China, where the humid subtropical climate can lead to significant sun exposure. Knowing UV levels is essential not only for preventing sunburn but also for maintaining overall skin health in a region that experiences high UV intensity, particularly between 10 AM and 2 PM, when values soar to a maximum of 11. As Changsha basks in the sunlight, being aware of the UV risks allows residents to enjoy outdoor activities while protecting themselves from harmful effects. Stay informed and safeguard your skin against the sun’s potent rays!

Hourly UV Index in Changsha

The UV Index for the day showcased a dramatic rise in sun intensity, starting at a mild 2 at 07:00 and peaking at an impressive 11 by 12:00. As the sun reached its zenith, the UV levels climbed swiftly, highlighting the need for sun protection. The index slightly declined throughout the afternoon, settling at 5 by 15:00 and tapering off to 1 by 17:00. As dusk approached, the UV index dropped to 0 by 19:00, signaling a retreat from the sun's strong rays. With the highest values occurring midday, it's essential for sun-seekers to take precautions during those peak hours to safeguard their skin.

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	9	very high	15 min
11:00	10	very high	15 min
12:00	11	extreme	10 min
13:00	9	very high	15 min
14:00	7	high	25 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 Changsha

Throughout the year, the UV Index demonstrates significant seasonal changes, particularly peaking during the summer months. From June to August, the UV Index reaches extreme levels (11 to 12), with burn times as short as 10 minutes, indicating the highest risk for sunburn and skin damage. March to May also shows very high levels (8 to 10), where the burn time decreases to 15 minutes. The risk begins to decline in September and continues through November, transitioning back to moderate levels in January and December. Residents and visitors should take extra precautions, especially from March through August, by using sunscreen, wearing protective clothing, and seeking shade during peak sun hours to minimize UV exposure.

Monthly Maximum UV Index for Changsha, China

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

The table above highlights how UV exposure in Changsha 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.

Changsha'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
Changsha	4	6	8	10	10	11	12	11	10	8	6	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