howmuchsun

Vitamin D from sunlight in Palestinian Territory

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 Palestinian Territory.

CityLatitudeElevationVitamin D winter
Gaza 31.50°N 38 m none
Khān Yūnis 31.34°N 55 m none
Jabālyā 31.53°N 43 m none

How these dates are calculated