UV Index in Chang'an, China

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Chang'an, China, where sun exposure can pose significant risks. With a climate classified as Cwa, Chang'an experiences hot summers, meaning that UV levels can soar to dangerous heights, peaking at a max of 13 during midday hours. Elevating your awareness of these UV levels is vital—not only for preventing sunburn but also for maintaining long-term skin health. By monitoring the daily UV Index, you can take proactive steps to protect yourself and enjoy the sunny days in Chang'an safely!

Hourly UV Index in Chang'an

As the sun rises higher in the sky, the UV Index begins to climb noticeably. At 07:00, it starts low at 1, but by 08:00, it jumps to 3. The intensity peaks at 12:00, reaching a blistering 13, signaling the time to take extra precautions. 11:00 and 12:00 are critical hours, with UV levels hitting 11 and 13, respectively. As the afternoon wanes, from 13:00 to 15:00, the index begins to drop but still remains significant, with values of 12 and 10. Finally, as the sun sets through 16:00 to 19:00, it tapers off to a gentle 1, making it a safer time for outdoor activities. Always remember to protect your skin during peak hours for optimal safety!

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	3	moderate	30 min
09:00	5	moderate	30 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	13	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	4	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 Chang'an

Throughout the year, UV exposure fluctuates significantly, with February through September being the high-risk months due to extreme UV Index levels consistently reaching between 11 and 14. March and April peak at 11 and 12, while May to July measures 14—the most hazardous rating. During these critical months, the recommended burn time is a mere 10 minutes, making sun protection essential. Conversely, the UV Index declines in the fall and winter months, with October and November classified as very high (UV Index 9-10) and burn times slightly improving to 15 minutes. As January and December return to high levels, sun exposure increases to 25 minutes but remains noteworthy. Visitors and residents should take precautions year-round, especially during the summer months, by wearing protective clothing, applying sunscreen frequently, and seeking shade during peak hours.

Monthly Maximum UV Index for Chang'an, China

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

The table above highlights how UV exposure in Chang'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.

Chang'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
Chang'an	7	10	11	12	14	13	13	13	11	10	9	7
Shenzhen UVI	7	10	12	12	14	13	13	13	12	11	9	7