UV Index in Xiwu, China

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Xiwu, China, as it provides essential information about the sun’s intensity and its potential effects on skin health. With high UV levels peaking at 12 during midday hours, awareness is key to avoiding sunburn and long-term skin damage. The Cfa climate of Xiwu, characterized by warm summers and mild winters, means that UV exposure can vary significantly throughout the year, increasing the risk of sun-related health issues. Keep an eye on the UV Index to enjoy the sunny days safely!

Hourly UV Index in Xiwu

As the sun rises, the UV Index begins its steady ascent, starting at a mild 2 at 7:00 AM. By 9:00 AM, it reaches a notable 7, signaling the need for sun protection. The peak occurs at 11:00 AM and 12:00 PM, where it hits a maximum of 12, indicating dangerously high levels of UV radiation. After this midday zenith, the index gradually declines, dropping to 6 by 3:00 PM and further to 1 by 5:00 PM, ultimately reaching 0 at sunset. This hourly progression emphasizes the importance of vigilance against UV exposure, particularly during the late morning to early afternoon when the risk 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	2	low	45 min
08:00	4	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	8	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Xiwu

During the year, the UV Index experiences significant seasonal variation, particularly peaking from March to September. The high-risk months are April to September, where the UV Index consistently reaches extreme levels of 10 or higher, with the shortest burn time of just 10 minutes in May through August. In contrast, the remaining months, such as January and November, show a high exposure category but allow longer burn times of up to 25 minutes. Therefore, it is crucial for both visitors and residents to take appropriate precautions during the high-risk months, such as applying sunscreen, wearing protective clothing, and seeking shade, while being more lenient during the cooler months. Remember, consistent sun safety is vital year-round.

Monthly Maximum UV Index for Xiwu, China

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

The table above highlights how UV exposure in Xiwu 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.

Xiwu'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
Xiwu	6	7	9	10	12	12	12	12	11	8	6	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