Prague
Vitamin D from the sun in Prague
6 months of sun
In Prague you can synthesize vitamin D from April to September.
From October to March synthesis isn't possible — this is when a supplement can help.
Prague: we'll tell you the days you can make vitamin D.
Loading notifications…Today's sun in Prague
Today's sunrise, sunset, golden hour and day length.
Year-round profile in Prague
Daily hours with enough sun to synthesize vitamin D across the year.
Seasonal windows
- March: between 12:00 and 13:00, about 19 min for 1000 IU.
- June: between 09:00 and 16:00, about 8 min for 1000 IU.
- September: between 11:00 and 14:00, about 16 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 Prague
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 Prague
How sunrise, sunset and day length change over the year.
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| 07:56 | 16:27 | 8 h 31 min | |
| 07:17 | 17:17 | 10 h 00 min | |
| 06:20 | 18:04 | 11 h 43 min | |
| 06:11 | 19:54 | 13 h 42 min | |
| 05:17 | 20:40 | 15 h 24 min | |
| 04:52 | 21:13 | 16 h 21 min | |
| 05:09 | 21:07 | 15 h 58 min | |
| 05:53 | 20:20 | 14 h 28 min | |
| 06:41 | 19:13 | 12 h 32 min | |
| 07:29 | 18:06 | 10 h 37 min | |
| 07:19 | 16:15 | 8 h 56 min | |
| 07:56 | 16:01 | 8 h 05 min |
Approximate values for mid-month (the 15th).
Frequently asked questions about vitamin D in Prague
- Can I get vitamin D from the sun in winter in Prague?
- In Prague you can synthesize vitamin D from April to September.
- How many minutes of sun do I need in Prague?
- In summer, about 19 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 Prague?
- It shifts with the seasons: in June the sun rises around 04:52 and sets around 21:13; in December it rises around 07:56 and sets around 16:01.
- What is the longest day of the year in Prague?
- Longest day: June, with about 16 h of daylight. Shortest day: December, with about 8 h.
- When is golden hour in Prague?
- It's roughly the last hour before sunset: in June it starts around 20:21 and in December around 15:03.