howmuchsun

Vitamin D from sunlight in Germany

How long you need in the sun to make vitamin D, and when the sun is too low to make any at all, for 26 cities in Germany.

CityLatitudeElevationVitamin D winter
Berlin 52.52°N 74 m 21 Sep – 2 Apr (194 days)
Hamburg 53.55°N 9 m 17 Sep – 6 Apr (202 days)
Munich 48.14°N 524 m 6 Oct – 17 Mar (163 days)
Köln 50.93°N 58 m 26 Sep – 28 Mar (184 days)
Frankfurt am Main 50.12°N 113 m 28 Sep – 25 Mar (179 days)
Düsseldorf 51.22°N 42 m 25 Sep – 29 Mar (186 days)
Essen 51.46°N 83 m 24 Sep – 29 Mar (187 days)
Dortmund 51.51°N 96 m 24 Sep – 29 Mar (187 days)
Dresden 51.05°N 116 m 25 Sep – 28 Mar (185 days)
Bremen 53.08°N 17 m 19 Sep – 4 Apr (198 days)
Hannover 52.37°N 57 m 21 Sep – 2 Apr (194 days)
Leipzig 51.34°N 116 m 25 Sep – 29 Mar (186 days)
Duisburg 51.43°N 38 m 24 Sep – 29 Mar (187 days)
Bochum 51.48°N 102 m 24 Sep – 29 Mar (187 days)
Wuppertal 51.26°N 150 m 25 Sep – 28 Mar (185 days)
Bielefeld 52.03°N 111 m 22 Sep – 31 Mar (191 days)
Bonn 50.73°N 64 m 26 Sep – 27 Mar (183 days)
Münster 51.96°N 64 m 22 Sep – 31 Mar (191 days)
Wiesbaden 50.09°N 147 m 29 Sep – 24 Mar (177 days)
Gelsenkirchen 51.51°N 48 m 24 Sep – 30 Mar (188 days)
Aachen 50.78°N 266 m 27 Sep – 26 Mar (181 days)
Mönchengladbach 51.19°N 57 m 25 Sep – 28 Mar (185 days)
Kiel 54.32°N 7 m 14 Sep – 8 Apr (207 days)
Chemnitz 50.84°N 306 m 27 Sep – 26 Mar (181 days)
Braunschweig 52.27°N 72 m 21 Sep – 1 Apr (193 days)
Magdeburg 52.13°N 47 m 22 Sep – 1 Apr (192 days)

How these dates are calculated