UV Index in Sanya, China

Last updated: May 3, 2025

Understanding the UV Index in Sanya, China is crucial for anyone who enjoys its stunning beaches and sunny skies. The UV Index serves as a vital tool for sunburn prevention and safeguarding your skin health, especially in a region known for its warm climate and intense solar radiation. With peak UV levels reaching as high as 14 during midday, it's essential to be aware of the risks associated with sun exposure. By recognizing and monitoring these UV levels, you can take proactive steps to protect yourself, ensuring that your time in Sanya is both enjoyable and safe.

Hourly UV Index in Sanya

As the sun rises higher in the sky, the UV Index climbs steadily, reaching its peak at 12:00 PM with a striking 14. The day starts gently with a max of 1 at 7:00 AM, gradually increasing to 5 by 9:00 AM. By 10:00 AM, the intensity spikes to 8, leading to a maximum of 12 at 11:00 AM. For the sun worshippers, 12:00 PM to 1:00 PM is the prime time, maintaining that high UV Index of 14. As the afternoon unfolds, the index begins to wane, dropping to 9 at 3:00 PM and easing further to 1 by 7:00 PM. It's a perfect reminder to stay protected from the sun's rays during peak 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	2	low	45 min
09:00	5	moderate	30 min
10:00	8	very high	15 min
11:00	12	extreme	10 min
12:00	14	extreme	10 min
13:00	14	extreme	10 min
14:00	12	extreme	10 min
15:00	9	very high	15 min
16:00	5	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Sanya

The UV Index exhibits significant seasonal variations, with peak values occurring from March to October, categorizing these months as high-risk for sun exposure. During this period, particularly February through October, the UV Index remains in the extreme category, with maximum readings of 14 in March, April, July, and August, accompanied by a critical burn time of just 10 minutes. January and November show a slight decrease in UV levels, registering as very high with a burn time of 15 minutes. As such, it is imperative for both visitors and residents to take necessary precautions during these months, including wearing sunscreen, protective clothing, and seeking shade to mitigate the risk of UV-related skin damage.

Monthly Maximum UV Index for Sanya, China

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

The table above highlights how UV exposure in Sanya 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.

Sanya'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 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
Sanya	9	11	14	14	14	13	14	14	13	12	9	8