July 21, 2026 · Dumbarton, Scotland
Dumbarton has 16h 44m of daylight today. Sunrise is at 05:03 and sunset is at 21:47. All times are calculated astronomically for Dumbarton's exact coordinates.
Dumbarton lies at 56°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 Dumbarton, or see daylight hours for every day of the year.
The longest day in Dumbarton is around 17h 36m (around June 21). The shortest is around 6h 58m (around December 21). Days are currently getting shorter — losing about 3 minutes per day.
| Month | Day length | Sunrise | Sunset |
|---|---|---|---|
| January | 7h 33m | 08:41 | 16:14 |
| February | 9h 32m | 07:47 | 17:20 |
| March | 11h 41m | 06:38 | 18:19 |
| April | 14h 5m | 06:17 | 20:22 |
| May | 16h 13m | 05:09 | 21:22 |
| June | 17h 33m | 04:33 | 22:06 |
| July | 17h 5m | 04:52 | 21:57 |
| August | 15h 12m | 05:48 | 21:00 |
| September | 12h 53m | 06:48 | 19:41 |
| October | 10h 35m | 07:47 | 18:23 |
| November | 8h 22m | 07:53 | 16:14 |
| December | 7h 2m | 08:43 | 15:45 |