Vitamin D

Marseille

Vitamin D from the sun in Marseille

8 months of sun

In Marseille you can synthesize vitamin D from March to October.

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

Exact window
February 28 – October 20

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

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Today's sun in Marseille

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

Year-round profile in Marseille

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: between 11:00 and 15:00, about 13 min for 1000 IU.
  • June: between 09:00 and 17:00, about 7 min for 1000 IU.
  • September: between 11:00 and 15:00, about 11 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 Marseille

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 Marseille

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

MonthSunriseSunset
08:0917:27
07:4018:06
06:5418:42
06:5820:19
06:1520:55
05:5721:20
06:1221:17
06:4420:41
07:2019:46
07:5618:52
07:3517:12
08:0517:04

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

Frequently asked questions about vitamin D in Marseille

Can I get vitamin D from the sun in winter in Marseille?
In Marseille you can synthesize vitamin D from March to October.
How many minutes of sun do I need in Marseille?
In summer, about 13 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 Marseille?
It shifts with the seasons: in June the sun rises around 05:57 and sets around 21:20; in December it rises around 08:05 and sets around 17:04.
What is the longest day of the year in Marseille?
Longest day: June, with about 15 h of daylight. Shortest day: December, with about 9 h.
When is golden hour in Marseille?
It's roughly the last hour before sunset: in June it starts around 20:37 and in December around 16:17.

More about the sun, light and health in the guide