howmuchsun

Vitamin D from sunlight in Philippines

How long you need in the sun to make vitamin D, and when the sun is too low to make any at all, for 8 cities in Philippines.

CityLatitudeElevationVitamin D winter
Quezon City 14.65°N 49 m none
Davao 7.07°N 13 m none
Caloocan 14.65°N 6 m none
Manila 14.60°N 13 m none
Taguig 14.52°N 5 m none
Budta 7.20°N 4 m none
Malingao 7.16°N 5 m none
Zamboanga 6.91°N 9 m none

How these dates are calculated