UV Index in Jiufen, Taiwan

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Jiufen, Taiwan, where the climate boasts warm temperatures and significant sunshine throughout the year. Being aware of UV levels can help you effectively prevent sunburn and maintain healthy skin, making it essential to monitor daily readings. During peak hours, especially between 11 AM and 1 PM, Jiufen experiences high UV exposure, with levels soaring to a maximum of 13. Familiarizing yourself with these fluctuations not only protects your skin but also enhances your outdoor experiences in this picturesque mountain town.

Hourly UV Index in Jiufen

As dawn breaks, the UV Index begins its journey, starting at a modest 2 at 7:00 AM. By 8:00 AM, it steadily climbs to 4, signaling the approach of stronger rays. The sun reaches its peak intensity at noon, soaring to a remarkable 13. From 11:00 AM to 1:00 PM, the index remains alarmingly high, maxing out at 12 and then gradually declining in the afternoon. By 3:00 PM, it drops to 6 and continues to wane, arriving at a gentle 1 by 5:00 PM. As the day winds down, the UV Index falls to zero by 7:00 PM, presenting a safe reprieve from the sun's rays. Remember to protect your skin during those peak hours when the sun's strength 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	2	low	45 min
08:00	4	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	11	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 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 Jiufen

As the seasons progress, the UV Index shows significant variations, particularly peaking during the summer months. From January to March, the UV Index rises from 7 to a striking 11, indicating high exposure risks. The high-risk months are notably from March through September, where the index remains at extreme levels of 11 to 13, resulting in a critical burn time of just 10 minutes. This trend highlights the importance of vigilant sun protection strategies. Residents and visitors are strongly advised to apply sunscreen, wear protective clothing, and seek shade during peak sun hours, especially from April to August, to minimize the dangers posed by high UV levels. After September, the UV Index gradually decreases, yet caution remains necessary until temperatures drop in November and December, where the index still reflects high exposure levels.

Monthly Maximum UV Index for Jiufen, Taiwan

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

The table above highlights how UV exposure in Jiufen compares to other major locations across Taiwan. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Jiufen's solar exposure compared to other cities in Taiwan. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Jiufen	7	9	11	11	12	12	13	12	12	10	8	6
Banqiao UVI	7	9	11	11	12	12	13	12	12	10	8	6
Taipei UVI	7	9	11	11	12	12	13	12	12	10	8	6
Tainan UVI	8	10	13	12	13	13	13	13	12	10	10	7
Taichung UVI	8	10	12	12	13	13	13	13	12	10	9	7
Kaohsiung UVI	8	11	12	13	13	13	14	14	12	11	10	7