Vitamin D from sunlight in Austria
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 Austria.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Vienna | 48.21°N | 171 m | 5 Oct – 18 Mar (165 days) |
| Graz | 47.07°N | 362 m | 9 Oct – 13 Mar (156 days) |
| Linz | 48.31°N | 266 m | 5 Oct – 18 Mar (165 days) |
The same sun that makes vitamin D also burns. UV index and sunburn times in Austria →