UV index and sunburn time in Bulgaria
Peak UV index and how quickly unprotected skin burns, for 3 cities in Bulgaria.
| City | Peak UV | Category | Month | Burns after |
|---|---|---|---|---|
| Sofia | 8.9 | Very high | July | 26 min |
| Plovdiv | 8.9 | Very high | July | 26 min |
| Varna | 8.6 | Very high | July | 27 min |
The same UV also drives vitamin D synthesis — and stops entirely for part of the year at higher latitudes. Vitamin D winters in Bulgaria →
Burn times are for skin type III with no sunscreen. How these are calculated