Vitamin D

The sun, month by month

Sunrise and sunset in Barcelona in December

On December 1 in Barcelona the sun rises at 08:00 and sets at 17:22; on day 31 it rises at 08:18 and sets at 17:32. Over the month the day gets 9 minutes shorter.

In Barcelona (41.4° latitude), December 2026 has 31 days whose sun rises at 08:00 and sets at 17:22 on the 1st, and at 08:18 and 17:32 on the 31th. Mid-month the day lasts 9 h 12 min and the sun reaches 25° above the horizon. Even so, the UV index never reaches 3 at any point in the month: at this latitude and time of year, the ozone layer absorbs UVB before enough of it reaches the ground. So in December there is no vitamin D synthesis in Barcelona at any hour of the day, however long you stay out.

Sunrise08:11
Sunset17:23
Golden hour16:39–17:23
Day length9 h 12 min

Where does the sun rise and set in Barcelona in December?

Where it risesSoutheast121°
Where it setsSouthwest239°

Mid-December in Barcelona: the sun rises in the southeast — a bearing of 121°, measured from true north — and sets in the southwest, at 239°. That is 31° south of due east at sunrise, and the same 31° south of due west at sunset. From the 1st to the last day of the month both points barely move.

Approximate bearings: they can be a couple of degrees out. They are measured from true north, not the north a phone compass points to.

Day by day

All times are local to Barcelona. Dawn and dusk mark civil twilight.

DayDawnSunriseSunsetDuskDay length
107:2908:0017:2217:539 h 22 min
207:3008:0117:2217:539 h 21 min
307:3108:0217:2217:539 h 20 min
407:3208:0317:2217:539 h 19 min
507:3308:0417:2217:539 h 18 min
607:3308:0517:2217:539 h 17 min
707:3408:0517:2217:539 h 16 min
807:3508:0617:2217:539 h 16 min
907:3608:0717:2217:539 h 15 min
1007:3708:0817:2217:539 h 14 min
1107:3708:0917:2217:539 h 14 min
1207:3808:0917:2217:549 h 13 min
1307:3908:1017:2317:549 h 13 min
1407:3908:1117:2317:549 h 12 min
1507:4008:1117:2317:549 h 12 min
1607:4108:1217:2317:559 h 11 min
1707:4108:1217:2417:559 h 11 min
1807:4208:1317:2417:559 h 11 min
1907:4208:1417:2417:569 h 11 min
2007:4308:1417:2517:569 h 11 min
2107:4308:1517:2517:579 h 11 min
2207:4408:1517:2617:579 h 11 min
2307:4408:1517:2617:589 h 11 min
2407:4408:1617:2717:589 h 11 min
2507:4508:1617:2717:599 h 11 min
2607:4508:1617:2817:599 h 12 min
2707:4508:1717:2918:009 h 12 min
2807:4608:1717:2918:019 h 12 min
2907:4608:1717:3018:019 h 13 min
3007:4608:1717:3118:029 h 13 min
3107:4608:1817:3218:039 h 14 min

Approximate astronomical values: they can shift a minute or two from year to year.

What about vitamin D in December?

In December the sun doesn't climb high enough in Barcelona for vitamin D synthesis: the season to mind your diet or consider supplementation.

See the Barcelona vitamin D guide

Common questions about the sun in Barcelona in December

Where does the sun set in Barcelona in December?
Mid-December in Barcelona: the sun sets in the southwest, a bearing of 239° measured from true north, which is 31° south of due west. It rises in the southeast, at 121°. Over the month both points barely move.
How much daylight does Barcelona lose in December?
Over December the day gets 9 minutes shorter in Barcelona: on December 1 the sun rises at 08:00 and sets at 17:22, and on day 31 it rises at 08:18 and sets at 17:32.
How many hours of daylight does Barcelona get in December?
In mid-December the day lasts 9 h 12 min in Barcelona, from sunrise at 08:11 to sunset at 17:23. The table has the day length for each of the 31 days of the month.
What time does it start to get light in Barcelona in December?
In mid-December the sky starts to get light at 07:40 in Barcelona, when the sun is 6° below the horizon, and the sun itself does not rise until 08:11. The “Dawn” column of the table gives that time for every day of the month.
What time does it get dark in Barcelona in December?
It's not the same time as sunset. In mid-December in Barcelona the sun sets at 17:23, but there is still light: civil twilight does not end until 17:54, when the sun reaches 6° below the horizon and usable outdoor light runs out. The “Dusk” column of the table gives that time day by day.
What time of day can you make vitamin D in Barcelona in December?
At no time of day. Not even at midday on December 15 does the UV index reach 3 in Barcelona, and below that minimum the skin makes no vitamin D, however long you stay out. In December it is the season to mind your diet or consider supplementation.