Live UV forecast for 692 cities
France stretches from 41.9189° to 51.0344° latitude (Northern hemisphere), so UV conditions differ a lot from region to region. The clear-sky UV index reaches ≈ 7.9 in Ajaccio (peak in June), while in Wattrelos the yearly maximum is only ≈ 7.2.
| Zone | Cities | J | F | M | A | M | J | J | A | S | O | N | D | Peak |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperate | 692 | 2.2 | 3.2 | 4.7 | 6.2 | 7 | 7.5 | 7.3 | 6.6 | 5.6 | 4.2 | 2.9 | 2.1 | 7.5 |
Calculated clear-sky noon peaks at the average latitude of each zone. Real values vary with clouds, altitude and ozone.
Using Paris as a reference: the UV index reaches 6+ in April, May, June, July and August. 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 ≈ 7.9 — in Ajaccio around June. Values above this occur only near the equator and in high mountains.
Ajaccio (peak ≈ 7.9), followed by Agde and Aix-en-Provence. The mildest sun is in Wattrelos (max ≈ 7.2).
In Paris and similar latitudes the UV reaches 6+ in April, May, June, July and August: use SPF 30–50+ on sunny days. Protection is advised from UV 3.
No — the local maximum is ≈ 7.9. UV 11+ occurs only near the equator, in deserts and high mountains.