Vitamin D from sunlight in Cuba
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 Cuba.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Havana | 23.13°N | 41 m | none |
| Santiago de Cuba | 20.02°N | 33 m | none |
| Camagüey | 21.38°N | 102 m | none |
The same sun that makes vitamin D also burns. UV index and sunburn times in Cuba →