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UV Index in Taiwan

Live UV forecast for 67 cities

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UV climate of Taiwan: overview

Taiwan stretches from 22.0042° to 25.2578° latitude (Northern hemisphere), so UV conditions differ a lot from region to region. The clear-sky UV index reaches ≈ 9.1 in Chaozhou (peak in May), while in Zhudong the yearly maximum is only ≈ 8.9.

UV index by month by climate zone

ZoneCitiesJFMAMJJASONDPeak
Tropical13 6 6.9 8 8.8 9 9.1 9.1 8.9 8.5 7.6 6.7 5.9 9.1
Subtropical54 5.7 6.7 7.8 8.6 8.9 9 8.9 8.8 8.3 7.4 6.4 5.6 9

Calculated clear-sky noon peaks at the average latitude of each zone. Real values vary with clouds, altitude and ozone.

Sunniest cities in Taiwan (highest UV)

Chaozhou · 9.1 in May Donggang · 9.1 in May Fengshan · 9.1 in June Hengchun · 9.1 in May Kaohsiung · 9.1 in May

Cities with the mildest sun

Zhudong · max 8.9 Zhubei · max 8.9 Yingge · max 8.9 Yilan · max 8.9 Xizhi · max 8.9

When do you need SPF in Taiwan?

Using Taipei as a reference: the UV index reaches 6+ in February, March, April, May, June, July, August, September, October and November. In the sunniest zones (see table) SPF 30–50+ is needed almost year-round; in the mildest — only in late spring and summer.

FAQ: UV index in Taiwan

What is the highest UV index in Taiwan?

The calculated clear-sky maximum is ≈ 9.1 — in Chaozhou around May. Values above this occur only near the equator and in high mountains.

Which city in Taiwan is the sunniest?

Chaozhou (peak ≈ 9.1), followed by Donggang and Fengshan. The mildest sun is in Zhudong (max ≈ 8.9).

When is SPF needed in Taiwan?

In Taipei and similar latitudes the UV reaches 6+ in February, March, April, May, June, July, August, September, October and November: use SPF 30–50+ on sunny days. Protection is advised from UV 3.

Is UV 11+ possible in Taiwan?

No — the local maximum is ≈ 9.1. UV 11+ occurs only near the equator, in deserts and high mountains.