UV index and sunburn time in U.S. Virgin Islands
Peak UV index and how quickly unprotected skin burns, for 1 city in U.S. Virgin Islands.
| City | Peak UV | Category | Month | Burns after |
|---|---|---|---|---|
| Saint Croix | 15.1 | Extreme | August | 15 min |
The same UV also drives vitamin D synthesis — and stops entirely for part of the year at higher latitudes. Vitamin D winters in U.S. Virgin Islands →
Burn times are for skin type III with no sunscreen. How these are calculated