UV Index in Changtan, China

Last updated: June 2, 2025

In Changtan, China, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels not only helps you make informed decisions about sun exposure but also plays a vital role in reducing the risk of skin conditions. With a Cfa climate characterized by warm summers, residents and visitors in Changtan face significant UV exposure, particularly during peak hours when the index soars as high as 12. By staying informed about the UV Index, you can protect your skin and enjoy the beautiful sunshine safely.

Hourly UV Index in Changtan

The UV Index throughout the day showcases a stark increase as the sun rises, starting from a mild 1 at 07:00 and peaking at a striking 12 between 12:00 and 13:00. This significant surge highlights the importance of sun protection, especially during the hours when the index reaches maximal levels of 10 at 11:00 and 11 at 14:00. As the afternoon wanes, the UV Index begins to decline, dropping to 8 by 15:00 and finishing the day with a gentle return to 1 by 19:00. This data serves as a crucial reminder to prioritize sun safety during 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	10	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Changtan

Throughout the year, the UV Index shows significant seasonal variations, with the highest levels occurring from April to September. During this period, the index reaches extreme levels, peaking in July at 13. The high-risk months for sun exposure include March through September, where the burn time drastically decreases; for example, in March it is only 15 minutes, and by April to September, it shortens to just 10 minutes. Conversely, January, February, and November present high but less intense UV exposures, with burn times of 25 minutes. Visitors and residents are advised to take precautionary measures during high UV months by seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen to minimize skin damage. Remember, even on cloudier days, UV rays can still cause harm!

Monthly Maximum UV Index for Changtan, China

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

The table above highlights how UV exposure in Changtan 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.

Changtan'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
Changtan	6	7	9	11	11	12	13	12	11	9	7	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