UV index and sunburn time in France
Peak UV index and how quickly unprotected skin burns, for 5 cities in France.
| City | Peak UV | Category | Month | Burns after |
|---|---|---|---|---|
| Paris | 7.0 | High | July | 33 min |
| Lille | 6.6 | High | June | 35 min |
| Roubaix | 6.6 | High | June | 35 min |
| Tourcoing | 6.6 | High | June | 35 min |
| Dunkirk | 6.5 | High | June | 36 min |
The same UV also drives vitamin D synthesis — and stops entirely for part of the year at higher latitudes. Vitamin D winters in France →
Burn times are for skin type III with no sunscreen. How these are calculated