Vitamin D

Amsterdam

Vitamin D from the sun in Amsterdam

6 months of sun

In Amsterdam you can synthesize vitamin D from April to September.

From October to March synthesis isn't possible — this is when a supplement can help.

Exact window
March 30 – September 21

Amsterdam: we'll tell you the days you can make vitamin D.

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Today's sun in Amsterdam

Today's sunrise, sunset, golden hour and day length.

Year-round profile in Amsterdam

Daily hours with enough sun to synthesize vitamin D across the year.

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0 h10 h+
Daily hours with enough sun to synthesize vitamin D across the year.

Seasonal windows

  • March: synthesis isn't possible.
  • June: between 10:00 and 17:00, about 9 min for 1000 IU.
  • September: between 13:00 and 14:00, about 19 min for 1000 IU.
  • December: synthesis isn't possible.

Estimated for Fitzpatrick type III skin, arms and face exposed, clear sky.

When to supplement in Amsterdam

During the months without solar synthesis, vitamin D comes only from food or a supplement. It is usually taken as D3, often with magnesium — which the body needs to activate it — and vitamin K (as K2), which contributes to the maintenance of normal bones.

More about supplements

Sunrise and sunset by month in Amsterdam

How sunrise, sunset and day length change over the year.

MonthSunriseSunset
08:4416:55
08:0017:50
06:5918:41
06:4520:36
05:4521:28
05:1722:04
05:3621:56
06:2421:05
07:1819:52
08:1118:41
08:0616:45
08:4516:27

Approximate values for mid-month (the 15th).

Frequently asked questions about vitamin D in Amsterdam

Can I get vitamin D from the sun in winter in Amsterdam?
In Amsterdam you can synthesize vitamin D from April to September.
How many minutes of sun do I need in Amsterdam?
In summer, about 9 minutes with arms and face exposed is enough for 1000 IU (Fitzpatrick type III skin, clear sky).
What time does the sun rise and set in Amsterdam?
It shifts with the seasons: in June the sun rises around 05:17 and sets around 22:04; in December it rises around 08:45 and sets around 16:27.
What is the longest day of the year in Amsterdam?
Longest day: June, with about 17 h of daylight. Shortest day: December, with about 8 h.
When is golden hour in Amsterdam?
It's roughly the last hour before sunset: in June it starts around 21:08 and in December around 15:23.

More about the sun, light and health in the guide