UV Index in Heishui, China

Last updated: August 1, 2025

Understanding the UV Index in Heishui, China is crucial for protecting your skin and overall health. The varying UV levels throughout the day can significantly impact your exposure risk, especially during peak hours where indices soar to 13. Being aware of these levels is essential for sunburn prevention and maintaining skin health. Heishui, with its Cfa climate, experiences high UV exposure, particularly during summer, making it vital to stay informed and take protective measures. By monitoring the UV Index, you can enjoy outdoor activities safely while minimizing the risk of long-term skin damage.

Hourly UV Index in Heishui

As the sun rises, the UV Index begins at a gentle 1 at 7:00 AM, gradually increasing to 2 by 8:00 AM. By 9:00 AM, it reaches a moderate 4, but the intensity really ramps up at 10:00 AM, soaring to 8. The peak occurs at 12:00 PM, where the UV Index hits a staggering 13, remaining consistently high until 1:00 PM. As the afternoon progresses, it starts to decline, dipping to 12 at 2:00 PM and gradually falling to 3 by 5:00 PM. The day concludes with a return to a safer 1 by 7:00 PM, making it essential to stay protected during those intense midday 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	4	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Heishui

The UV Index displays significant seasonal variations, reflecting changes in sun intensity throughout the year. The high-risk months for UV exposure are April through October, where the index peaks at 13 in July and remains predominantly in the extreme category of 10 or higher. During these months, individuals should limit sun exposure, especially between 10 AM and 4 PM, and take protective measures, such as wearing sunscreen, hats, and protective clothing. January to March and November still carry moderate to high risks, so visitors and residents are advised to remain cautious, while December, with an index of 5, presents the lowest risk, allowing for more extended sun exposure. Always stay informed and prioritize skin safety throughout the year!

Monthly Maximum UV Index for Heishui, China

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

The table above highlights how UV exposure in Heishui 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.

Heishui'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
Heishui	6	8	9	11	12	12	13	12	11	9	7	5
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