Vitamin D from sunlight in Czechia
How long you need in the sun to make vitamin D, and when the sun is too low to make any at all, for 5 cities in Czechia.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Prague | 50.09°N | 202 m | 29 Sep – 24 Mar (177 days) |
| Liberec | 50.77°N | 359 m | 27 Sep – 26 Mar (181 days) |
| Hradec Králové | 50.21°N | 250 m | 29 Sep – 24 Mar (177 days) |
| Ústí nad Labem | 50.66°N | 150 m | 27 Sep – 26 Mar (181 days) |
| Pardubice | 50.04°N | 227 m | 29 Sep – 24 Mar (177 days) |
The same sun that makes vitamin D also burns. UV index and sunburn times in Czechia →