howmuchsun

Vitamin D from sunlight in Ethiopia

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 Ethiopia.

CityLatitudeElevationVitamin D winter
Addis Ababa 9.02°N 2,405 m none
Jijiga 9.35°N 1,646 m none
Gonder 12.60°N 2,201 m none

How these dates are calculated