howmuchsun

Vitamin D from sunlight in Rwanda

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 Rwanda.

CityLatitudeElevationVitamin D winter
Kigali 1.95°S 1,542 m none
Gisenyi 1.70°S 1,461 m none
Musanze 1.50°S 1,849 m none

How these dates are calculated