howmuchsun

Vitamin D from sunlight in Argentina

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 Argentina.

CityLatitudeElevationVitamin D winter
Buenos Aires 34.61°S 31 m 28 May – 20 Jul (54 days)
Córdoba 31.41°S 378 m none
Río Gallegos 51.63°S 1 m 25 Mar – 26 Sep (186 days)

How these dates are calculated