Vitamin D from sunlight in Niger
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 Niger.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Niamey | 13.51°N | 206 m | none |
| Maradi | 13.50°N | 360 m | none |
| Zinder | 13.81°N | 460 m | none |
The same sun that makes vitamin D also burns. UV index and sunburn times in Niger →