Vitamin D from sunlight in Guernsey
How long you need in the sun to make vitamin D, and when the sun is too low to make any at all, for 1 city in Guernsey.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Saint Peter Port | 49.46°N | 10 m | 4 Oct – 19 Mar (167 days) |
The same sun that makes vitamin D also burns. UV index and sunburn times in Guernsey →