Johannesburg
Vitamin D from the sun in Johannesburg
sun all year
In Johannesburg you can synthesize vitamin D all year round.
Johannesburg: we'll tell you the days you can make vitamin D.
Loading notifications…Today's sun in Johannesburg
Today's sunrise, sunset, golden hour and day length.
Year-round profile in Johannesburg
Daily hours with enough sun to synthesize vitamin D across the year.
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0 h10 h+
Seasonal windows
- March: between 09:00 and 17:00, about 4 min for 1000 IU.
- June: between 10:00 and 15:00, about 9 min for 1000 IU.
- September: between 09:00 and 16:00, about 5 min for 1000 IU.
- December: between 08:00 and 17:00, about 4 min for 1000 IU.
Estimated for Fitzpatrick type III skin, arms and face exposed, clear sky.
Sunrise and sunset by month in Johannesburg
How sunrise, sunset and day length change over the year.
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| 05:29 | 19:05 | 13 h 36 min | |
| 05:52 | 18:53 | 13 h 01 min | |
| 06:08 | 18:27 | 12 h 19 min | |
| 06:23 | 17:53 | 11 h 30 min | |
| 06:39 | 17:29 | 10 h 51 min | |
| 06:53 | 17:23 | 10 h 30 min | |
| 06:54 | 17:33 | 10 h 39 min | |
| 06:36 | 17:48 | 11 h 12 min | |
| 06:03 | 18:02 | 11 h 59 min | |
| 05:30 | 18:16 | 12 h 46 min | |
| 05:10 | 18:36 | 13 h 27 min | |
| 05:10 | 18:57 | 13 h 46 min |
Approximate values for mid-month (the 15th).
Frequently asked questions about vitamin D in Johannesburg
- Can I get vitamin D from the sun in winter in Johannesburg?
- In Johannesburg you can synthesize vitamin D all year round.
- How many minutes of sun do I need in Johannesburg?
- In summer, about 4 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 Johannesburg?
- It shifts with the seasons: in June the sun rises around 06:53 and sets around 17:23; in December it rises around 05:10 and sets around 18:57.
- What is the longest day of the year in Johannesburg?
- Longest day: December, with about 14 h of daylight. Shortest day: June, with about 11 h.
- When is golden hour in Johannesburg?
- It's roughly the last hour before sunset: in June it starts around 16:49 and in December around 18:23.