UV Index in Changxi, China

Last updated: July 2, 2025

Understanding the UV Index in Changxi, China is crucial for maintaining your skin health and preventing sunburn. With the region's Cfa climate bringing about significant UV exposure, particularly during the peak hours of 10:00 AM to 2:00 PM when the index can soar to 12, residents and visitors alike must be vigilant. By staying informed about the UV levels throughout the day, you can take necessary precautions to protect yourself from harmful effects, ensuring that your outdoor activities remain enjoyable and safe.

Hourly UV Index in Changxi

As the day unfolds, the UV Index (UVI) reaches its peak around noon, soaring to a significant 12. Starting from a modest 2 at 7:00 AM, the intensity gradually escalates, hitting 4 by 8:00 AM and 6 by 9:00 AM. By 10:00 AM, the sun's rays intensify further, reflecting a 9 on the scale, ultimately culminating in a high of 11 at 11:00 AM. The sun remains fierce until 1:00 PM, maintaining an 11 before declining in the late afternoon. As the day wanes, the UVI decreases, dropping to 4 at 4:00 PM, then 2 at 5:00 PM, and winding down to a mere 0 by 7:00 PM. It's a clear reminder to relish the sun's warmth early on while taking precautions during the midday peak.

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	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Changxi

Throughout the year, UV Index levels exhibit significant seasonal changes, peaking during the summer months. January begins with a UV Index of 6 (high) and a burn time of 25 minutes, while February escalates to 8 (very high) with a burn time of just 15 minutes. The high-risk period extends from March to September, where months feature very high to extreme UV indices, peaking at 12 in May through August, necessitating a burn time of merely 10 minutes. October sees a decrease to 9 (very high), while November and December return to safer levels of 6 (high) and 5 (moderate), respectively. Visitors and residents should take precautions, particularly from March to September, by wearing protective clothing, using sunscreen, and seeking shade during peak sun hours to minimize the risk of UV exposure.

Monthly Maximum UV Index for Changxi, China

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

The table above highlights how UV exposure in Changxi 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.

Changxi'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
Changxi	6	8	9	10	12	12	12	12	11	9	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