UV Index in Haishiwan, China

Last updated: June 2, 2025

In Haishiwan, China, understanding the UV Index is essential for protecting yourself from the sun's harmful rays. The UV Index provides crucial information about potential sunburn risks and long-term skin health, which is especially important given the area's Dwb climate characterized by dry winters and warm summers. During peak hours, particularly between 12 PM and 1 PM, the UV Index can reach levels as high as 12, indicating an extreme risk of harm from unprotected sun exposure. Staying informed about UV levels empowers residents and visitors to take necessary precautions, ensuring fun in the sun while safeguarding skin health.

Hourly UV Index in Haishiwan

As the sun climbs higher in the sky, the UV Index undergoes a dramatic shift throughout the day. Starting at a modest 1 by 07:00, it quickly gains momentum, reaching 2 by 08:00. By 09:00, it hits 4, but the real surge begins as we approach midday; at 10:00, it spikes to 7, culminating in a peak of 12 from 12:00 to 14:00. This high level of UV radiation calls for caution, especially for outdoor activities. As the afternoon progresses, the index gradually decreases, dipping to 10 at 15:00, before winding down to 4 by 17:00, and finally retreating to 1 by 19:00 as the day comes to a close. Remember to protect your skin during those 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	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	12	extreme	10 min
15:00	10	very high	15 min
16:00	7	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Haishiwan

Throughout the year, UV exposure levels vary significantly, with the highest risk months being May through August, when the UV Index reaches extreme levels of 12 to 13 and burn times drop to just 10 minutes. Notably, March and April also feature very high UV indexes of 8 and 10, requiring caution, with burn times of 15 minutes. Conversely, during the winter months of January, November, and December, the UV Index remains moderate at 3 to 5, allowing for longer exposure times of 30 minutes without significant risk of sunburn. Residents and visitors should take extra precautions during peak UV months by wearing sunscreen, protective clothing, and limiting time outdoors during midday hours to mitigate the risk of skin damage.

Monthly Maximum UV Index for Haishiwan, China

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

The table above highlights how UV exposure in Haishiwan 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.

Haishiwan'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
Haishiwan	3	5	8	10	12	12	13	12	10	8	5	3
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