Vitamin D from sunlight in Italy
How long you need in the sun to make vitamin D, and when the sun is too low to make any at all, for 6 cities in Italy.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Rome | 41.89°N | 20 m | 26 Oct – 23 Feb (121 days) |
| Milan | 45.46°N | 122 m | 14 Oct – 8 Mar (146 days) |
| Naples | 40.85°N | 17 m | 29 Oct – 19 Feb (114 days) |
| Turin | 45.07°N | 239 m | 15 Oct – 6 Mar (143 days) |
| Palermo | 38.12°N | 14 m | 9 Nov – 8 Feb (92 days) |
| Genoa | 44.40°N | 19 m | 17 Oct – 5 Mar (140 days) |
The same sun that makes vitamin D also burns. UV index and sunburn times in Italy →