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UV Index in Micronesia

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UV climate of Micronesia: overview

Micronesia stretches from 6.9248° to 6.9248° latitude (Northern hemisphere), so UV conditions differ a lot from region to region. The clear-sky UV index reaches ≈ 10.3 in Palikir (peak in April), while in Palikir the yearly maximum is only ≈ 10.3.

UV index by month by climate zone

ZoneCitiesJFMAMJJASONDPeak
Equatorial1 9 9.6 10.2 10.3 10.1 9.9 10 10.3 10.3 10 9.5 9 10.3

Calculated clear-sky noon peaks at the average latitude of each zone. In the equatorial belt the UV stays high all year round, with two maxima around the equinoxes. Real values vary with clouds, altitude and ozone.

Sunniest cities in Micronesia (highest UV)

Cities with the mildest sun

When do you need SPF in Micronesia?

Using Palikir as a reference: the UV index reaches 6+ in January, February, March, April, May, June, July, August, September, October, November and December. 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 Micronesia

What is the highest UV index in Micronesia?

The calculated clear-sky maximum is ≈ 10.3 — in Palikir around April. Values above this occur only near the equator and in high mountains.

Which city in Micronesia is the sunniest?

Palikir (peak ≈ 10.3), followed by
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. The mildest sun is in Palikir (max ≈ 10.3).

When is SPF needed in Micronesia?

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

Is UV 11+ possible in Micronesia?

No — the local maximum is ≈ 10.3. UV 11+ occurs only near the equator, in deserts and high mountains.