Zurich
Vitamin D from the sun in Zurich
7 months of sun
In Zurich you can synthesize vitamin D from March to September.
From October to February synthesis isn't possible — this is when a supplement can help.
Zurich: we'll tell you the days you can make vitamin D.
Loading notifications…Today's sun in Zurich
Today's sunrise, sunset, golden hour and day length.
Year-round profile in Zurich
Daily hours with enough sun to synthesize vitamin D across the year.
Seasonal windows
- March: between 12:00 and 15:00, about 16 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 13 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 Zurich
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 supplementsSunrise and sunset by month in Zurich
How sunrise, sunset and day length change over the year.
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| 08:09 | 17:01 | 8 h 52 min | |
| 07:35 | 17:46 | 10 h 12 min | |
| 06:43 | 18:28 | 11 h 45 min | |
| 06:40 | 20:13 | 13 h 33 min | |
| 05:50 | 20:54 | 15 h 05 min | |
| 05:28 | 21:24 | 15 h 55 min | |
| 05:44 | 21:19 | 15 h 35 min | |
| 06:23 | 20:37 | 14 h 14 min | |
| 07:06 | 19:35 | 12 h 29 min | |
| 07:48 | 18:34 | 10 h 45 min | |
| 07:34 | 16:48 | 9 h 14 min | |
| 08:07 | 16:36 | 8 h 29 min |
Approximate values for mid-month (the 15th).
Frequently asked questions about vitamin D in Zurich
- Can I get vitamin D from the sun in winter in Zurich?
- In Zurich you can synthesize vitamin D from March to September.
- How many minutes of sun do I need in Zurich?
- In summer, about 16 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 Zurich?
- It shifts with the seasons: in June the sun rises around 05:28 and sets around 21:24; in December it rises around 08:07 and sets around 16:36.
- What is the longest day of the year in Zurich?
- Longest day: June, with about 16 h of daylight. Shortest day: December, with about 8 h.
- When is golden hour in Zurich?
- It's roughly the last hour before sunset: in June it starts around 20:36 and in December around 15:44.