Live UV forecast for 42 cities
Norway stretches from 58.1467° to 69.9689° latitude (Northern hemisphere), so UV conditions differ a lot from region to region. The clear-sky UV index reaches ≈ 6.5 in Arendal (peak in June), while in Tromso the yearly maximum is only ≈ 5.1.
| Zone | Cities | J | F | M | A | M | J | J | A | S | O | N | D | Peak |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High-latitude | 42 | 0.6 | 1.4 | 2.8 | 4.4 | 5.5 | 6.1 | 5.9 | 5 | 3.7 | 2.3 | 1.1 | 0.5 | 6.1 |
Calculated clear-sky noon peaks at the average latitude of each zone. Real values vary with clouds, altitude and ozone.
Using Oslo as a reference: the UV index reaches 6+ in June and July. In the sunniest zones (see table) SPF 30–50+ is needed almost year-round; in the mildest — only in late spring and summer.
The calculated clear-sky maximum is ≈ 6.5 — in Arendal around June. Values above this occur only near the equator and in high mountains.
Arendal (peak ≈ 6.5), followed by Grimstad and Kristiansand. The mildest sun is in Tromso (max ≈ 5.1).
In Oslo and similar latitudes the UV reaches 6+ in June and July: use SPF 30–50+ on sunny days. Protection is advised from UV 3.
No — the local maximum is ≈ 6.5. UV 11+ occurs only near the equator, in deserts and high mountains.