Vitamin D

The sun, month by month

Sunrise and sunset in Brussels in April

On April 1 in Brussels the sun rises at 07:22 and sets at 20:12; on day 30 it rises at 06:20 and sets at 21:00. Over the month the day grows 110 minutes longer.

In Brussels (50.9° latitude), April 2026 has 30 days whose sun rises at 07:22 and sets at 20:12 on the 1st, and at 06:20 and 21:00 on the 30th. Mid-month the day lasts 13 h 45 min and the sun reaches 49° above the horizon. Vitamin D synthesis is possible between 12:00 and 16:00, which is when the UV index reaches at least 3: at the best moment of the day about 13 minutes are enough for a mid-range skin phototype with a quarter of the body exposed to make around 1000 IU.

Sunrise06:50
Sunset20:35
Golden hour19:51–20:35
Day length13 h 45 min

Where does the sun rise and set in Brussels in April?

Where it risesEast74°
Where it setsWest286°

Mid-April in Brussels: the sun rises in the east — a bearing of 74°, measured from true north — and sets in the west, at 286°. That is 16° north of due east at sunrise, and the same 16° north of due west at sunset. From the 1st to the last day of the month both points shift 17° north.

Approximate bearings: they can be a couple of degrees out. They are measured from true north, not the north a phone compass points to.

Day by day

All times are local to Brussels. Dawn and dusk mark civil twilight.

DayDawnSunriseSunsetDuskDay length
106:4907:2220:1220:4512 h 50 min
206:4607:2020:1420:4712 h 54 min
306:4407:1720:1520:4912 h 58 min
406:4107:1520:1720:5113 h 02 min
506:3907:1320:1920:5213 h 06 min
606:3707:1020:2020:5413 h 10 min
706:3407:0820:2220:5613 h 14 min
806:3207:0620:2420:5813 h 18 min
906:3007:0420:2520:5913 h 22 min
1006:2707:0120:2721:0113 h 26 min
1106:2506:5920:2921:0313 h 29 min
1206:2306:5720:3021:0513 h 33 min
1306:2006:5520:3221:0613 h 37 min
1406:1806:5320:3421:0813 h 41 min
1506:1606:5020:3521:1013 h 45 min
1606:1306:4820:3721:1213 h 49 min
1706:1106:4620:3921:1413 h 53 min
1806:0906:4420:4021:1513 h 56 min
1906:0606:4220:4221:1714 h 00 min
2006:0406:4020:4421:1914 h 04 min
2106:0206:3820:4521:2114 h 08 min
2206:0006:3520:4721:2314 h 11 min
2305:5706:3320:4921:2514 h 15 min
2405:5506:3120:5021:2614 h 19 min
2505:5306:2920:5221:2814 h 23 min
2605:5106:2720:5421:3014 h 26 min
2705:4906:2520:5521:3214 h 30 min
2805:4706:2320:5721:3414 h 33 min
2905:4406:2120:5821:3614 h 37 min
3005:4206:2021:0021:3714 h 41 min

Approximate astronomical values: they can shift a minute or two from year to year.

What about vitamin D in April?

In April, the typical synthesis window in Brussels runs from 12:00 to 16:00: with medium skin and a t-shirt, ~13 min at the best moment is enough.

See the Brussels vitamin D guide

Common questions about the sun in Brussels in April

Where does the sun set in Brussels in April?
Mid-April in Brussels: the sun sets in the west, a bearing of 286° measured from true north, which is 16° north of due west. It rises in the east, at 74°. Over the month both points shift 17° north.
How much daylight does Brussels gain in April?
Over April the day gets 110 minutes longer in Brussels: on April 1 the sun rises at 07:22 and sets at 20:12, and on day 30 it rises at 06:20 and sets at 21:00.
How many hours of daylight does Brussels get in April?
In mid-April the day lasts 13 h 45 min in Brussels, from sunrise at 06:50 to sunset at 20:35. The table has the day length for each of the 30 days of the month.
What time does it start to get light in Brussels in April?
In mid-April the sky starts to get light at 06:16 in Brussels, when the sun is 6° below the horizon, and the sun itself does not rise until 06:50. The “Dawn” column of the table gives that time for every day of the month.
What time does it get dark in Brussels in April?
It's not the same time as sunset. In mid-April in Brussels the sun sets at 20:35, but there is still light: civil twilight does not end until 21:10, when the sun reaches 6° below the horizon and usable outdoor light runs out. The “Dusk” column of the table gives that time day by day.
What time of day can you make vitamin D in Brussels in April?
In mid-April, between 12:00 and 16:00: that is the stretch of the day when the UV index reaches 3 in Brussels, the minimum for the skin to make vitamin D. At the best moment of the day about 13 minutes are enough for a mid-range skin phototype with a quarter of the body exposed to make around 1000 IU.