Helsinki
Vitamin D from the sun in Helsinki
4 months of sun
In Helsinki you can synthesize vitamin D from May to August.
From September to April synthesis isn't possible — this is when a supplement can help.
Helsinki: we'll tell you the days you can make vitamin D.
Loading notifications…Today's sun in Helsinki
Today's sunrise, sunset, golden hour and day length.
Year-round profile in Helsinki
Daily hours with enough sun to synthesize vitamin D across the year.
Seasonal windows
- March: synthesis isn't possible.
- June: between 10:00 and 16:00, about 11 min for 1000 IU.
- September: synthesis isn't possible.
- December: synthesis isn't possible.
Estimated for Fitzpatrick type III skin, arms and face exposed, clear sky.
When to supplement in Helsinki
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 Helsinki
How sunrise, sunset and day length change over the year.
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| 09:11 | 15:48 | 6 h 37 min | |
| 08:05 | 17:05 | 9 h 00 min | |
| 06:43 | 18:17 | 11 h 34 min | |
| 06:06 | 20:35 | 14 h 29 min | |
| 04:42 | 21:51 | 17 h 09 min | |
| 03:54 | 22:47 | 18 h 52 min | |
| 04:22 | 22:30 | 18 h 08 min | |
| 05:35 | 21:13 | 15 h 38 min | |
| 06:53 | 19:37 | 12 h 44 min | |
| 08:07 | 18:04 | 9 h 57 min | |
| 08:26 | 15:45 | 7 h 20 min | |
| 09:20 | 15:12 | 5 h 51 min |
Approximate values for mid-month (the 15th).
Frequently asked questions about vitamin D in Helsinki
- Can I get vitamin D from the sun in winter in Helsinki?
- In Helsinki you can synthesize vitamin D from May to August.
- How many minutes of sun do I need in Helsinki?
- In summer, about 11 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 Helsinki?
- It shifts with the seasons: in June the sun rises around 03:54 and sets around 22:47; in December it rises around 09:20 and sets around 15:12.
- What is the longest day of the year in Helsinki?
- Longest day: June, with about 19 h of daylight. Shortest day: December, with about 6 h.
- When is golden hour in Helsinki?
- It's roughly the last hour before sunset: in June it starts around 21:26 and in December around 13:01.