UV Index in Hai'an, China

Last updated: July 2, 2025

In Hai'an, China, being aware of the UV Index is crucial for protecting your skin and preventing sunburn. Understanding the daily UV levels helps residents and visitors alike make informed choices about sun exposure, especially during peak hours when the risk of harmful effects is highest. With a Cwa climate, Hai'an experiences significant variations in UV radiation, particularly around midday when the index can soar to 13, signaling extreme risk. By staying informed about the UV Index, you can enjoy the sunny days while safeguarding your skin health.

Hourly UV Index in Hai'an

The UV Index during the day reveals a notable peak in sun exposure. Starting at 07:00 with a gentle 1, it gradually climbs to 2 by 08:00. As the sun rises higher, the index surges dramatically, hitting 5 at 09:00, and reaching a striking 8 by 10:00. The intensity peaks at 12:00 with a scorching 13, remaining high until 13:00. After that, it starts to decline, returning to 11 at 14:00 and falling to 8 by 15:00. As the afternoon wanes, the index drops to 5 at 16:00, and finally settles back to 1 by 18:00 and 19:00. This data highlights the importance of sun safety measures during the midday hours when UV exposure is at its highest.

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	11	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 min
15:00	8	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 Hai'an

Throughout the year, the UV Index exhibits significant seasonal fluctuations, with the most intense UV exposure occurring from March to October. During this period, the UV Index reaches an extreme level, peaking at 13 from May to August. The highest risk months for sunburn are March, April, May, June, July, August, September, and October, where the recommended burn time is as little as 10 minutes. In contrast, the risk decreases slightly in January, February, November, and December, where the UV Index falls to 8 or 9 and burn times extend to 15 minutes. Residents and visitors are advised to take precautionary measures during high UV months by wearing protective clothing, applying broad-spectrum sunscreen with high SPF, and seeking shade whenever possible, particularly during peak sunlight hours.

Monthly Maximum UV Index for Hai'an, China

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

The table above highlights how UV exposure in Hai'an 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.

Hai'an'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
Hai'an	8	10	12	12	13	13	13	13	12	11	9	8