Vitamin D from sunlight in The Netherlands
How long you need in the sun to make vitamin D, and when the sun is too low to make any at all, for 25 cities in The Netherlands.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Rotterdam | 51.92°N | 9 m | 22 Sep – 31 Mar (191 days) |
| Amsterdam | 52.37°N | 13 m | 21 Sep – 2 Apr (194 days) |
| The Hague | 52.08°N | 4 m | 22 Sep – 1 Apr (192 days) |
| Utrecht | 52.09°N | 13 m | 22 Sep – 1 Apr (192 days) |
| Groningen | 53.22°N | 16 m | 18 Sep – 5 Apr (200 days) |
| Eindhoven | 51.44°N | 22 m | 24 Sep – 29 Mar (187 days) |
| Tilburg | 51.56°N | 16 m | 24 Sep – 30 Mar (188 days) |
| Breda | 51.59°N | 9 m | 24 Sep – 30 Mar (188 days) |
| Nijmegen | 51.84°N | 25 m | 23 Sep – 31 Mar (190 days) |
| Almere Stad | 52.37°N | 0 m | 21 Sep – 2 Apr (194 days) |
| Haarlem | 52.38°N | 10 m | 21 Sep – 2 Apr (194 days) |
| Arnhem | 51.98°N | 16 m | 22 Sep – 31 Mar (191 days) |
| 's-Hertogenbosch | 51.70°N | 7 m | 23 Sep – 30 Mar (189 days) |
| Enschede | 52.22°N | 45 m | 21 Sep – 1 Apr (193 days) |
| Zaanstad | 52.45°N | 2 m | 21 Sep – 2 Apr (194 days) |
| Amersfoort | 52.16°N | 8 m | 22 Sep – 1 Apr (192 days) |
| Apeldoorn | 52.21°N | 12 m | 21 Sep – 1 Apr (193 days) |
| Hoofddorp | 52.30°N | 0 m | 21 Sep – 1 Apr (193 days) |
| Zwolle | 52.51°N | 9 m | 20 Sep – 2 Apr (195 days) |
| Leeuwarden | 53.20°N | 1 m | 18 Sep – 4 Apr (199 days) |
| Maastricht | 50.85°N | 56 m | 26 Sep – 27 Mar (183 days) |
| Leiden | 52.16°N | 6 m | 22 Sep – 1 Apr (192 days) |
| Dordrecht | 51.81°N | 3 m | 23 Sep – 31 Mar (190 days) |
| Zoetermeer | 52.06°N | 0 m | 22 Sep – 31 Mar (191 days) |
| Venlo | 51.37°N | 24 m | 24 Sep – 29 Mar (187 days) |
The same sun that makes vitamin D also burns. UV index and sunburn times in The Netherlands →