Vitamin D from sunlight in Sri Lanka
How long you need in the sun to make vitamin D, and when the sun is too low to make any at all, for 3 cities in Sri Lanka.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Colombo | 6.94°N | 7 m | none |
| Dehiwala-Mount Lavinia | 6.84°N | 16 m | none |
| Maharagama | 6.85°N | 26 m | none |
The same sun that makes vitamin D also burns. UV index and sunburn times in Sri Lanka →