July 21, 2026 · Oulu, Finland
Oulu has 19h 37m of daylight today. Sunrise is at 03:37 and sunset is at 23:14. All times are calculated astronomically for Oulu's exact coordinates.
Oulu lies at 65°N. At this latitude, daylight swings dramatically between seasons — from long summer days with potential midnight sun to short winter days with just a few hours of light.
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 Oulu, or see daylight hours for every day of the year.
The longest day in Oulu is around 22h 3m (around June 21). The shortest is around 3h 34m (around December 21). Days are currently getting shorter — losing about 7 minutes per day.
| Month | Day length | Sunrise | Sunset |
|---|---|---|---|
| January | 4h 60m | 09:58 | 14:58 |
| February | 8h 26m | 08:20 | 16:46 |
| March | 11h 38m | 06:39 | 18:17 |
| April | 15h 9m | 05:44 | 20:53 |
| May | 18h 41m | 03:55 | 22:36 |
| June | 21h 52m | 02:23 | 00:16 |
| July | 20h 18m | 03:16 | 23:34 |
| August | 16h 41m | 05:03 | 21:44 |
| September | 13h 10m | 06:40 | 19:49 |
| October | 9h 48m | 08:10 | 17:59 |
| November | 6h 18m | 08:54 | 15:13 |
| December | 3h 42m | 10:23 | 14:05 |