UV index and sunburn time in Brazil
Peak UV index and how quickly unprotected skin burns, for 8 cities in Brazil.
| City | Peak UV | Category | Month | Burns after |
|---|---|---|---|---|
| São Paulo | 14.3 | Extreme | January | 16 min |
| Rio de Janeiro | 13.7 | Extreme | January | 17 min |
| Belo Horizonte | 15.1 | Extreme | February | 15 min |
| Salvador | 15.8 | Extreme | February | 15 min |
| Fortaleza | 16.7 | Extreme | March | 14 min |
| Manaus | 16.7 | Extreme | March | 14 min |
| Brasília | 16.4 | Extreme | February | 14 min |
| Curitiba | 14.1 | Extreme | January | 17 min |
The same UV also drives vitamin D synthesis — and stops entirely for part of the year at higher latitudes. Vitamin D winters in Brazil →
Burn times are for skin type III with no sunscreen. How these are calculated