UV Index in Siliwu, China

Last updated: July 2, 2025

In Siliwu, China, understanding the UV Index is crucial for safeguarding your skin and health. With its Dwa climate, characterized by distinct seasons, residents and visitors face varying levels of UV exposure that can lead to sunburn and long-term skin damage. On sunny days, the UV levels can peak at 9, which necessitates awareness and protective measures, especially between 10 AM and 2 PM when the sun is strongest. By staying informed about the daily UV Index, you can enjoy outdoor activities while minimizing the risk of harmful effects from sun exposure.

Hourly UV Index in Siliwu

As the sun rises, the UV Index begins to climb, starting at a gentle 2 at 07:00. By 08:00, it reaches a moderate 4, and as the day progresses, the intensity continues to increase. At 09:00, it spikes to 6, and by 10:00, we see a peak of 7. The sun’s strength culminates at 11:00 with a high of 8, before reaching its zenith at 12:00 with an impressive 9. As the afternoon unfolds, the indices retract; 1:00 PM sees a slight drop to 8, and by 2:00 PM, it settles back to 7. In the later hours, the intensity decreases further, with 5 at 3:00 PM, then 3 by 4:00 PM, and fades to 2 at 5:00 PM. Finally, as the sun sets, the UV Index dwindles to 1 by 6:00 PM and remains steady through 7:00 PM. It’s a reminder to enjoy the sunshine wisely, especially 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	7	high	25 min
11:00	8	very high	15 min
12:00	9	very high	15 min
13:00	8	very high	15 min
14:00	7	high	25 min
15:00	5	moderate	30 min
16:00	3	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 Siliwu

The UV Index experiences significant seasonal fluctuations, with higher risks emerging from April to August. During this period, particularly in May, June, July, and August, the UV Index reaches very high levels (8-9), resulting in a burn time of just 15 minutes for unprotected skin. This peak exposure necessitates caution, and it's advisable for residents and visitors to wear sunscreen, protective clothing, and seek shade during peak hours. Conversely, January, November, and December show low UV levels (1-2), allowing for more relaxed outdoor activities. However, as the seasons change, it remains essential to monitor UV levels, particularly from March through September, to ensure safe exposure to sunlight.

Monthly Maximum UV Index for Siliwu, China

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

The table above highlights how UV exposure in Siliwu 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.

Siliwu'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
Siliwu	2	3	5	6	8	9	9	9	6	4	2	1
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
Shenzhen UVI	7	10	12	12	14	13	13	13	12	11	9	7