Vitamin D

The sun, month by month

Sunrise and sunset in Warsaw in January

On January 1 in Warsaw the sun rises at 07:46 and sets at 15:34; on day 31 it rises at 07:21 and sets at 16:18. Over the month the day grows 69 minutes longer.

In Warsaw (52.2° latitude), January 2026 has 31 days whose sun rises at 07:46 and sets at 15:34 on the 1st, and at 07:21 and 16:18 on the 31th. Mid-month the day lasts 8 h 12 min and the sun reaches 17° 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 January there is no vitamin D synthesis in Warsaw at any hour of the day, however long you stay out.

Sunrise07:39
Sunset15:51
Golden hour14:52–15:51
Day length8 h 12 min

Where does the sun rise and set in Warsaw in January?

Where it risesSoutheast125°
Where it setsSouthwest235°

Mid-January in Warsaw: the sun rises in the southeast — a bearing of 125°, measured from true north — and sets in the southwest, at 235°. That is 35° south of due east at sunrise, and the same 35° south of due west at sunset. From the 1st to the last day of the month both points shift 10° north.

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 Warsaw. Dawn and dusk mark civil twilight.

DayDawnSunriseSunsetDuskDay length
107:0507:4615:3416:157 h 48 min
207:0507:4515:3516:167 h 49 min
307:0507:4515:3616:177 h 51 min
407:0407:4515:3716:187 h 52 min
507:0407:4515:3816:197 h 53 min
607:0407:4415:3916:207 h 55 min
707:0407:4415:4016:217 h 56 min
807:0307:4415:4216:227 h 58 min
907:0307:4315:4316:238 h 00 min
1007:0307:4315:4416:248 h 02 min
1107:0207:4215:4616:268 h 04 min
1207:0207:4115:4716:278 h 06 min
1307:0107:4115:4916:288 h 08 min
1407:0007:4015:5016:308 h 10 min
1507:0007:3915:5116:318 h 12 min
1606:5907:3815:5316:328 h 15 min
1706:5807:3815:5416:348 h 17 min
1806:5807:3715:5616:358 h 19 min
1906:5707:3615:5816:378 h 22 min
2006:5607:3515:5916:388 h 25 min
2106:5507:3416:0116:398 h 27 min
2206:5407:3316:0216:418 h 30 min
2306:5307:3116:0416:438 h 33 min
2406:5207:3016:0616:448 h 36 min
2506:5107:2916:0716:468 h 38 min
2606:5007:2816:0916:478 h 41 min
2706:4907:2716:1116:498 h 44 min
2806:4807:2516:1316:508 h 47 min
2906:4607:2416:1416:528 h 51 min
3006:4507:2216:1616:548 h 54 min
3106:4407:2116:1816:558 h 57 min

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

What about vitamin D in January?

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

See the Warsaw vitamin D guide

Common questions about the sun in Warsaw in January

Where does the sun set in Warsaw in January?
Mid-January in Warsaw: the sun sets in the southwest, a bearing of 235° measured from true north, which is 35° south of due west. It rises in the southeast, at 125°. Over the month both points shift 10° north.
How much daylight does Warsaw gain in January?
Over January the day gets 69 minutes longer in Warsaw: on January 1 the sun rises at 07:46 and sets at 15:34, and on day 31 it rises at 07:21 and sets at 16:18.
How many hours of daylight does Warsaw get in January?
In mid-January the day lasts 8 h 12 min in Warsaw, from sunrise at 07:39 to sunset at 15:51. The table has the day length for each of the 31 days of the month.
What time does it start to get light in Warsaw in January?
In mid-January the sky starts to get light at 07:00 in Warsaw, when the sun is 6° below the horizon, and the sun itself does not rise until 07:39. The “Dawn” column of the table gives that time for every day of the month.
What time does it get dark in Warsaw in January?
It's not the same time as sunset. In mid-January in Warsaw the sun sets at 15:51, but there is still light: civil twilight does not end until 16:31, 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 Warsaw in January?
At no time of day. Not even at midday on January 15 does the UV index reach 3 in Warsaw, and below that minimum the skin makes no vitamin D, however long you stay out. In January it is the season to mind your diet or consider supplementation.