UV index and sunburn time in San Marino
Peak UV index and how quickly unprotected skin burns, for 1 city in San Marino.
| City | Peak UV | Category | Month | Burns after |
|---|---|---|---|---|
| Serravalle | 8.3 | Very high | July | 28 min |
The same UV also drives vitamin D synthesis — and stops entirely for part of the year at higher latitudes. Vitamin D winters in San Marino →
Burn times are for skin type III with no sunscreen. How these are calculated