UV Index in Heyou, China

Last updated: June 2, 2025

Understanding the UV Index in Heyou, China is crucial for maintaining your skin health and preventing sunburn. The UV levels here can vary significantly throughout the day, peaking at a high of 12 between 1 PM and 2 PM, making it essential for residents and visitors alike to stay informed. Heyou's Cwa climate provides ample sunshine, but it also means that exposure risks can escalate quickly during the hotter months. By monitoring the UV Index, you can take proactive measures to protect your skin and enjoy the outdoors safely.

Hourly UV Index in Heyou

The UV Index throughout the day showcases a striking pattern, peaking at an impressive 12 by 1 PM. Beginning with a gentle start of 1 at 7 AM, the index steadily climbs, hitting 10 by 11 AM and reaching its zenith at 12 during the warmest hour. As the afternoon progresses, a decline occurs, with the index tapering off to 8 at 3 PM, and gradually dropping to 1 by 6 PM. This indicates that the highest UV exposure is between 11 AM and 1 PM, urging outdoor enthusiasts to take precautions during these 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	11	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 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 Heyou

The UV Index exhibits significant seasonal variation, with the highest risk months being May through August, when the index reaches extreme levels of 11 to 12, translating to a burn time of just 10 minutes. This poses a serious risk for skin damage, highlighting the importance of sun protection during this period. The spring months (March and April) also present very high UV levels, with burn times decreasing to 15 minutes. In contrast, the fall and winter months (October to March) see a reduction in UV exposure; however, January maintains a moderate level with a UV Index of 5. Residents and visitors are strongly advised to take precautions, especially from May to August, including wearing protective clothing, applying sunscreen liberally, and seeking shade during peak sun hours to minimize the risk of UV-related health issues.

Monthly Maximum UV Index for Heyou, China

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

The table above highlights how UV exposure in Heyou 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.

Heyou'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
Heyou	5	6	8	10	11	12	12	12	10	9	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