UV Index in Caiyuan, China

Last updated: May 3, 2025

Understanding the UV Index in Caiyuan, China is crucial for protecting your skin and overall health. With high UV levels peaking at 11 around midday, awareness of these metrics can help prevent painful sunburns and long-term skin damage. Caiyuan's humid subtropical climate (Cfa) means residents and visitors can experience varying UV exposure throughout the year, but the intense midday sun poses a consistent risk. By keeping an eye on the UV Index, you can enjoy the outdoors safely and protect yourself from harmful ultraviolet rays.

Hourly UV Index in Caiyuan

The UV Index throughout the day presents a dynamic picture of sun exposure. As early as 7:00 AM, the index starts at a mild 2, ramping up to a moderate 4 by 8:00 AM. The sun's intensity peaks around 11:00 AM and 12:00 PM with a striking 11, marking the height of caution for outdoor activities. As we move into the afternoon, the index gradually declines, dropping to 8 by 2:00 PM and further to 5 by 3:00 PM. The evening brings relief, with the UV Index decreasing to a 1 by 5:00 PM and finally hitting 0 by 7:00 PM. It’s clear that the midday hours pose the greatest risk, so sun safety measures are essential during those peak times.

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	7	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 min
13:00	10	very high	15 min
14:00	8	very high	15 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Caiyuan

Throughout the year, the UV Index exhibits significant seasonal variations, with the highest levels occurring from March to October. The months of April to June, peaking in May and June with a UV Index of 11-12, represent the extreme exposure category, where a burn can happen in just 10 minutes. July also maintains an extreme level, while August and September continue to reflect very high ratings, suggesting that these late summer months remain hazardous. As we move toward the fall and winter months, UV levels gradually decline, with December seeing the lowest Index of 4 (moderate). Visitors and residents should take extra precautions during the high-risk months of March through September by wearing protective clothing, applying sunscreen regularly, and seeking shade during peak hours to minimize harmful UV exposure.

Monthly Maximum UV Index for Caiyuan, China

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

The table above highlights how UV exposure in Caiyuan 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.

Caiyuan'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
Caiyuan	5	6	8	10	11	12	11	10	10	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