Vitamin D from sunlight in Jordan
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 Jordan.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Amman | 31.96°N | 757 m | none |
| Zarqa | 32.07°N | 625 m | none |
| Irbid | 32.56°N | 570 m | none |
The same sun that makes vitamin D also burns. UV index and sunburn times in Jordan →