howmuchsun

Vitamin D from sunlight in Mali

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 Mali.

CityLatitudeElevationVitamin D winter
Bamako 12.61°N 374 m none
Sikasso 11.32°N 368 m none
Koutiala 12.39°N 324 m none

How these dates are calculated