howmuchsun

Vitamin D from sunlight in Senegal

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 Senegal.

CityLatitudeElevationVitamin D winter
Dakar 14.69°N 12 m none
Pikine 14.76°N 17 m none
Touba 14.86°N 47 m none

How these dates are calculated