UV index and sunburn time in Sri Lanka
Peak UV index and how quickly unprotected skin burns, for 3 cities in Sri Lanka.
| City | Peak UV | Category | Month | Burns after |
|---|---|---|---|---|
| Colombo | 16.4 | Extreme | September | 14 min |
| Maharagama | 16.4 | Extreme | September | 14 min |
| Jaffna | 16.2 | Extreme | August | 14 min |
The same UV also drives vitamin D synthesis — and stops entirely for part of the year at higher latitudes. Vitamin D winters in Sri Lanka →
Burn times are for skin type III with no sunscreen. How these are calculated