howmuchsun

Vitamin D from sunlight in Belgium

How long you need in the sun to make vitamin D, and when the sun is too low to make any at all, for 19 cities in Belgium.

CityLatitudeElevationVitamin D winter
Brussels 50.85°N 28 m 26 Sep – 27 Mar (183 days)
Antwerp 51.22°N 13 m 25 Sep – 29 Mar (186 days)
Gent 51.05°N 10 m 25 Sep – 28 Mar (185 days)
Charleroi 50.41°N 136 m 28 Sep – 25 Mar (179 days)
Liège 50.63°N 66 m 27 Sep – 26 Mar (181 days)
Anderlecht 50.84°N 27 m 26 Sep – 27 Mar (183 days)
Schaerbeek 50.87°N 29 m 26 Sep – 27 Mar (183 days)
Brugge 51.21°N 13 m 25 Sep – 28 Mar (185 days)
Namur 50.47°N 88 m 27 Sep – 26 Mar (181 days)
Leuven 50.88°N 28 m 26 Sep – 27 Mar (183 days)
Molenbeek-Saint-Jean 50.85°N 39 m 26 Sep – 27 Mar (183 days)
Mons 50.45°N 56 m 27 Sep – 26 Mar (181 days)
Ixelles 50.83°N 84 m 26 Sep – 27 Mar (183 days)
Uccle 50.80°N 48 m 26 Sep – 27 Mar (183 days)
Deurne 51.22°N 8 m 25 Sep – 29 Mar (186 days)
Hasselt 50.93°N 42 m 26 Sep – 27 Mar (183 days)
Aalst 50.94°N 12 m 26 Sep – 28 Mar (184 days)
Mechelen 51.03°N 8 m 25 Sep – 28 Mar (185 days)
La Louvière 50.49°N 133 m 27 Sep – 26 Mar (181 days)

How these dates are calculated