July 21, 2026 · Porsgrunn, Norway
Sunset in Porsgrunn today is at 22:12. Day length is 17h 28m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Porsgrunn's coordinates and updated daily.
Porsgrunn lies at 59°N. At this latitude, day length varies significantly through the year — from roughly 7–8 hours in midwinter to 16–17 hours at midsummer.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for Porsgrunn.
The longest day in Porsgrunn is around 18h 33m (around June 21). The shortest is around 6h 8m (around December 21). Days are currently getting shorter — losing about 4 minutes per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 15:59 | 09:04 | 6h 55m |
| February | 17:15 | 07:58 | 9h 16m |
| March | 18:23 | 06:40 | 11h 43m |
| April | 20:35 | 06:09 | 14h 27m |
| May | 21:46 | 04:51 | 16h 55m |
| June | 22:38 | 04:08 | 18h 30m |
| July | 22:23 | 04:33 | 17h 50m |
| August | 21:14 | 05:40 | 15h 34m |
| September | 19:45 | 06:50 | 12h 55m |
| October | 18:17 | 07:59 | 10h 18m |
| November | 15:59 | 08:14 | 7h 45m |
| December | 15:23 | 09:11 | 6h 12m |