howmuchsun

Vitamin D from sunlight in Ghana

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 Ghana.

CityLatitudeElevationVitamin D winter
Kumasi 6.69°N 270 m none
Accra 5.56°N 33 m none
Tamale 9.40°N 196 m none

How these dates are calculated