UV Index in Sijiu, China

Last updated: July 2, 2025

Understanding the UV Index is crucial for the residents of Sijiu, China, where the intense sun exposure can significantly impact skin health. With UV levels peaking at a staggering 13 around noon, awareness of these values is essential for preventing sunburns and reducing the risk of long-term skin damage. Sijiu's Cwa climate—characterized by warm summers—presents heightened risks during peak daylight hours. Protecting yourself from harmful UV rays is not just wise; it's vital for enjoying the beautiful sunshine safely!

Hourly UV Index in Sijiu

The UV Index peaks dramatically throughout the day, starting from a gentle 1 at 07:00 and gradually rising to an impressive 13 by 12:00. This midday surge marks the day’s highest UV exposure, with levels reaching 11 at 11:00 and 13:00. As the sun begins to descend, the index declines smoothly, tapering back to 8 at 15:00, then 5 at 16:00, and finally settling down to 1 by 18:00 and 19:00. It's essential to stay protected, especially during those peak hours, as the sun’s rays can be quite fierce!

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	8	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	5	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 Sijiu

Throughout the year, the UV Index experiences significant fluctuations, with high-risk months typically occurring from February to September. During this period, UV levels peak at 14 in May, while March through September consistently show extreme ratings, resulting in a burn time of only 10 minutes. Notably, January and December have a high category with burn times of 25 minutes, while October and November fall into the very high category with a burn time of 15 minutes. Therefore, it is imperative that visitors and residents take appropriate precautions during high-risk months by wearing sunscreen, protective clothing, and seeking shade to minimize UV exposure.

Monthly Maximum UV Index for Sijiu, China

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

The table above highlights how UV exposure in Sijiu 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.

Sijiu'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
Sijiu	7	10	12	12	14	13	13	13	11	10	9	7
Shenzhen UVI	7	10	12	12	14	13	13	13	12	11	9	7