UV Index in Yilan, China

Last updated: June 2, 2025

Understanding the UV Index in Yilan, China is crucial for safeguarding your skin and overall health. With the region's distinct Dwb climate, residents are often exposed to varying UV levels throughout the day, peaking at a significant UV Index of 9 around noon. This high exposure underscores the importance of being aware of UV levels to prevent sunburn and long-term skin damage. As UV rays can intensify quickly—especially during daylight hours—knowing when to seek shade and apply sunscreen can make all the difference in enjoying the sunny beauty of Yilan while protecting your skin.

Hourly UV Index in Yilan

At sunrise, the UV Index begins its ascent, starting at a modest 3 by 07:00. As the day unfolds, intensity mounts, peaking at a robust 9 around 11:00 and 12:00, marking the sun’s zenith and safeguarding the need for sun protection. The afternoon sees a gradual decline, dipping to 7 by 13:00 and then further to 6 at 14:00. As the evening approaches, the UV Index drops significantly, resting at 4 by 15:00 and tapering off to 1 between 16:00 and 19:00. This pattern underscores the importance of taking precautions during the midday hours when ultraviolet radiation is at its strongest.

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	3	moderate	30 min
08:00	5	moderate	30 min
09:00	7	high	25 min
10:00	8	very high	15 min
11:00	9	very high	15 min
12:00	9	very high	15 min
13:00	7	high	25 min
14:00	6	high	25 min
15:00	4	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Yilan

Throughout the year, UV exposure fluctuates significantly, with the highest risk months occurring from May to August, when the UV Index reaches levels categorized as very high (UV Index 8-9). During these months, the burn time drastically decreases to just 15 minutes, emphasizing the need for protection. Conversely, the low risk months of January, November, and December offer a safer environment with a UV Index of 2 and a burn time of 45 minutes. As such, visitors and residents should be particularly vigilant during peak summer months by wearing sunscreen, protective clothing, and seeking shade during peak sun hours, while enjoying the milder winter months with less concern for UV exposure.

Monthly Maximum UV Index for Yilan, China

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

The table above highlights how UV exposure in Yilan 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.

Yilan'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
Yilan	2	3	5	6	8	9	9	8	6	4	2	2
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