The sun, month by month
Sunrise and sunset in Brussels in August
On August 1 in Brussels the sun rises at 06:09 and sets at 21:28; on day 31 it rises at 06:57 and sets at 20:28. Over the month the day gets 108 minutes shorter.
In Brussels (50.9° latitude), August 2026 has 31 days whose sun rises at 06:09 and sets at 21:28 on the 1st, and at 06:57 and 20:28 on the 31th. Mid-month the day lasts 14 h 32 min and the sun reaches 53° above the horizon. Vitamin D synthesis is possible between 11:00 and 17:00, which is when the UV index reaches at least 3: at the best moment of the day about 10 minutes are enough for a mid-range skin phototype with a quarter of the body exposed to make around 1000 IU.
Where does the sun rise and set in Brussels in August?
Mid-August in Brussels: the sun rises in the northeast — a bearing of 67°, measured from true north — and sets in the northwest, at 293°. That is 23° north of due east at sunrise, and the same 23° north of due west at sunset. From the 1st to the last day of the month both points shift 16° south.
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.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 05:29 | 06:09 | 21:28 | 22:08 | 15 h 19 min |
| 2 | 05:31 | 06:11 | 21:27 | 22:06 | 15 h 16 min |
| 3 | 05:33 | 06:12 | 21:25 | 22:04 | 15 h 13 min |
| 4 | 05:35 | 06:14 | 21:23 | 22:02 | 15 h 10 min |
| 5 | 05:36 | 06:15 | 21:21 | 22:00 | 15 h 06 min |
| 6 | 05:38 | 06:17 | 21:20 | 21:58 | 15 h 03 min |
| 7 | 05:40 | 06:18 | 21:18 | 21:56 | 15 h 00 min |
| 8 | 05:42 | 06:20 | 21:16 | 21:54 | 14 h 56 min |
| 9 | 05:43 | 06:21 | 21:14 | 21:52 | 14 h 53 min |
| 10 | 05:45 | 06:23 | 21:12 | 21:50 | 14 h 49 min |
| 11 | 05:47 | 06:25 | 21:10 | 21:48 | 14 h 46 min |
| 12 | 05:49 | 06:26 | 21:09 | 21:46 | 14 h 42 min |
| 13 | 05:51 | 06:28 | 21:07 | 21:44 | 14 h 39 min |
| 14 | 05:52 | 06:29 | 21:05 | 21:42 | 14 h 35 min |
| 15 | 05:54 | 06:31 | 21:03 | 21:39 | 14 h 32 min |
| 16 | 05:56 | 06:33 | 21:01 | 21:37 | 14 h 28 min |
| 17 | 05:58 | 06:34 | 20:59 | 21:35 | 14 h 24 min |
| 18 | 06:00 | 06:36 | 20:56 | 21:33 | 14 h 21 min |
| 19 | 06:01 | 06:37 | 20:54 | 21:30 | 14 h 17 min |
| 20 | 06:03 | 06:39 | 20:52 | 21:28 | 14 h 13 min |
| 21 | 06:05 | 06:41 | 20:50 | 21:26 | 14 h 10 min |
| 22 | 06:07 | 06:42 | 20:48 | 21:24 | 14 h 06 min |
| 23 | 06:08 | 06:44 | 20:46 | 21:21 | 14 h 02 min |
| 24 | 06:10 | 06:45 | 20:44 | 21:19 | 13 h 58 min |
| 25 | 06:12 | 06:47 | 20:42 | 21:17 | 13 h 54 min |
| 26 | 06:14 | 06:49 | 20:39 | 21:14 | 13 h 51 min |
| 27 | 06:15 | 06:50 | 20:37 | 21:12 | 13 h 47 min |
| 28 | 06:17 | 06:52 | 20:35 | 21:10 | 13 h 43 min |
| 29 | 06:19 | 06:54 | 20:33 | 21:07 | 13 h 39 min |
| 30 | 06:21 | 06:55 | 20:30 | 21:05 | 13 h 35 min |
| 31 | 06:22 | 06:57 | 20:28 | 21:02 | 13 h 31 min |
Approximate astronomical values: they can shift a minute or two from year to year.
What about vitamin D in August?
In August, the typical synthesis window in Brussels runs from 11:00 to 17:00: with medium skin and a t-shirt, ~10 min at the best moment is enough.
See the Brussels vitamin D guideCommon questions about the sun in Brussels in August
- Where does the sun set in Brussels in August?
- Mid-August in Brussels: the sun sets in the northwest, a bearing of 293° measured from true north, which is 23° north of due west. It rises in the northeast, at 67°. Over the month both points shift 16° south.
- How much daylight does Brussels lose in August?
- Over August the day gets 108 minutes shorter in Brussels: on August 1 the sun rises at 06:09 and sets at 21:28, and on day 31 it rises at 06:57 and sets at 20:28.
- How many hours of daylight does Brussels get in August?
- In mid-August the day lasts 14 h 32 min in Brussels, from sunrise at 06:31 to sunset at 21:03. The table has the day length for each of the 31 days of the month.
- What time does it start to get light in Brussels in August?
- In mid-August the sky starts to get light at 05:54 in Brussels, when the sun is 6° below the horizon, and the sun itself does not rise until 06:31. The “Dawn” column of the table gives that time for every day of the month.
- What time does it get dark in Brussels in August?
- It's not the same time as sunset. In mid-August in Brussels the sun sets at 21:03, but there is still light: civil twilight does not end until 21:39, 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 August?
- In mid-August, between 11:00 and 17:00: 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 10 minutes are enough for a mid-range skin phototype with a quarter of the body exposed to make around 1000 IU.