July 21, 2026 · Heerlen, Netherlands
Heerlen has 15h 52m of daylight today. Sunrise is at 05:47 and sunset is at 21:39. All times are calculated astronomically for Heerlen's exact coordinates.
Heerlen 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 Heerlen, or see daylight hours for every day of the year.
The longest day in Heerlen is around 16h 32m (around June 21). The shortest is around 7h 56m (around December 21). Days are currently getting shorter — losing about 2 minutes per day.
| Month | Day length | Sunrise | Sunset |
|---|---|---|---|
| January | 8h 25m | 08:33 | 16:59 |
| February | 10h 2m | 07:50 | 17:52 |
| March | 11h 49m | 06:51 | 18:40 |
| April | 13h 48m | 06:43 | 20:31 |
| May | 15h 31m | 05:48 | 21:19 |
| June | 16h 30m | 05:23 | 21:52 |
| July | 16h 6m | 05:40 | 21:45 |
| August | 14h 36m | 06:24 | 20:59 |
| September | 12h 41m | 07:12 | 19:53 |
| October | 10h 47m | 07:59 | 18:46 |
| November | 8h 59m | 07:52 | 16:51 |
| December | 7h 58m | 08:33 | 16:31 |