July 21, 2026 · Herstal, Belgium
Herstal has 15h 50m of daylight today. Sunrise is at 05:50 and sunset is at 21:39. All times are calculated astronomically for Herstal's exact coordinates.
Herstal lies at 51°N. At this latitude, day length varies significantly through the year — from roughly 7–8 hours in midwinter to 16–17 hours at midsummer.
Day length changes fastest near the spring and autumn equinoxes and slowest near the longest day and shortest day of the year. See the year chart to visualise how daylight hours shift month by month for Herstal, or see daylight hours for every day of the year.
The longest day in Herstal is around 16h 29m (around June 21). The shortest is around 7h 58m (around December 21). Days are currently getting shorter — losing about 2 minutes per day.
| Month | Day length | Sunrise | Sunset |
|---|---|---|---|
| January | 8h 27m | 08:34 | 17:01 |
| February | 10h 3m | 07:51 | 17:54 |
| March | 11h 49m | 06:53 | 18:42 |
| April | 13h 47m | 06:45 | 20:32 |
| May | 15h 29m | 05:50 | 21:19 |
| June | 16h 27m | 05:25 | 21:52 |
| July | 16h 3m | 05:42 | 21:46 |
| August | 14h 34m | 06:26 | 21:00 |
| September | 12h 41m | 07:13 | 19:54 |
| October | 10h 47m | 08:00 | 18:48 |
| November | 9h 0m | 07:53 | 16:53 |
| December | 8h 0m | 08:33 | 16:34 |