How cold is Lapland in December?
Rovaniemi's December mean is -7.7 °C (FMI 1991-2020), with an average low of -10.6 °C and high of -4.9 °C. Further north it is colder: Kittilä Pokka averages -10.4 °C and Saariselkä -9.7 °C. The tourism range of -20 to -10 °C describes colder days. Pack for -20 °C, because averages hide cold snaps.
What is the weather like in Lapland in December, and in the other winter months?
Cold and stable, with January and February the coldest. FMI's 1991-2020 normals give Rovaniemi -4.4 °C in November, -7.7 °C in December and -10.3 °C in January. Saariselkä and Kilpisjärvi run about 2 °C colder in midwinter. These are monthly averages, so single days differ widely.
The table uses the Finnish Meteorological Institute's 1991-2020 station statistics, the official 30-year reference period. The dataset has no station named Levi or Ylläs, so Kittilä Pokka stands in for that area, and Ivalo airport stands in for Inari. Read both as regional guides.
| Mean temperature, °C | Oct | Nov | Dec | Jan | Feb | Mar | Apr |
|---|---|---|---|---|---|---|---|
| Rovaniemi airport | 0.8 | -4.4 | -7.7 | -10.3 | -10.3 | -5.6 | 0.1 |
| Kittilä Pokka (Levi, Ylläs area) | -1.2 | -7.0 | -10.4 | -12.9 | -12.4 | -7.8 | -1.7 |
| Ivalo airport (Inari) | 0.2 | -5.7 | -9.1 | -11.8 | -11.4 | -6.8 | -1.0 |
| Saariselkä | -1.2 | -6.7 | -9.7 | -12.1 | -12.0 | -7.7 | -2.1 |
| Kilpisjärvi | -0.5 | -6.5 | -10.1 | -12.2 | -12.3 | -8.8 | -3.5 |
Pokka is a cold inland site, so Levi and Ylläs are probably milder than its figures; that is my inference, not an FMI statement. Rovaniemi is the mildest place in the table in every month. Our Rovaniemi, Levi, Ylläs, Saariselkä and Inari pages cover the places themselves.
An average day is not a typical day. Here are FMI's mean daily lows and highs for the three coldest months:
| Mean daily low / high, °C | Dec | Jan | Feb |
|---|---|---|---|
| Rovaniemi airport | -10.6 / -4.9 | -13.5 / -7.3 | -13.3 / -7.3 |
| Kittilä Pokka | -15.3 / -6.7 | -18.0 / -8.8 | -17.7 / -8.3 |
| Ivalo airport | -13.3 / -5.6 | -16.5 / -7.9 | -16.1 / -7.4 |
| Saariselkä | -13.0 / -6.3 | -15.6 / -8.3 | -15.3 / -8.2 |
| Kilpisjärvi | -14.7 / -5.8 | -17.3 / -7.7 | -17.4 / -7.9 |
Even inside one town, the thermometer matters. FMI's Rovaniemi Apukka station has a mean January low of -17.0 °C, against -13.5 °C at the airport, a 3.5 °C gap in the same place.
Other sources publish different figures. Visit Rovaniemi's seasons page lists typical December daytime temperatures of "-20 to -10 °C". FMI's average December high in Rovaniemi is -4.9 °C, so the tourism range describes colder days, not the average. Neither is wrong, but they answer different questions. For November, FMI's Rovaniemi mean is -4.4 °C, and for the Christmas period, see our Christmas in Lapland guide.
What is Rovaniemi like in December?
Cold, snowy and dark by southern standards, but not polar night. Rovaniemi is the mildest place in our table in every month. Snow cover is usually in place: the median depth on 15 December is 28 cm at the airport. Direct sun shrinks over the month, while twilight keeps the days usable.
| Rovaniemi, 2026 | Sun up | Sunrise to sunset | Civil twilight |
|---|---|---|---|
| 1 December | 3 h 45 | 10:13 to 13:58 | 08:45 to 15:27 |
| 15 December | 2 h 26 | 10:59 to 13:25 | 09:11 to 15:13 |
| 21 December | 2 h 14 | 11:08 to 13:22 | 09:16 to 15:14 |
| 31 December | 2 h 39 | 11:01 to 13:40 | 09:16 to 15:24 |
Source: USNO sun data for 66.50° N, 25.73° E, flat horizon. A forested or hilly horizon shortens it. The Christmas guide turns this into plans for 24 to 26 December.
What is the coldest month in Lapland, and how low does it go?
January is the coldest month on average, although February ties it at Rovaniemi. The lowest temperature ever measured in Finland is -51.5 °C, recorded at Kittilä Pokka on 28 January 1999. FMI's warnings treat -30 °C as the first level in northern Finland.
FMI's national record table lists the lowest temperature for every month. These are all-time national lows, so they show the ceiling of the risk, not what to expect:
| Month | Record low, °C | Place and date |
|---|---|---|
| October | -31.8 | Sodankylä, 25.10.1968 |
| November | -42.0 | Sodankylä, 30.11.1915 |
| December | -47.0 | Pielisjärvi, 21.12.1919 |
| January | -51.5 | Kittilä Pokka, 28.1.1999 |
| February | -49.0 | Sodankylä, 5.2.1912 |
| March | -44.3 | Salla Tuntsa, 1.3.1971 |
| April | -36.0 | Kuusamo and Sodankylä, 2.4. and 9.4.1912 |
FMI's frost warning rules put the yellow warning for northern Finland at -30 °C, orange at -40 °C and red at -45 °C. They apply to the air temperature or the wind chill index, whichever is worse. Wind matters, but less than you might fear inland: the 1991-2020 average wind speed in December is 3.9 m/s at Rovaniemi airport, and 2.5 to 2.7 m/s at Ivalo, Sodankylä and Kevo. Ivalo records calm conditions on 14% of December observations. Station means don't describe a fell summit.
Is there snow in Lapland in November, and how deep does it get?
Yes, though a thin cover. The median depth on 15 November ranges from 9 cm at Rovaniemi airport to 20 cm at Saariselkä. The cover builds to a peak in March or early April, and lasts into May in the far north.
FMI defines the first snow cover as at least 1 cm on the ground at the morning observation. Its 1991-2020 typical dates are 9 October at Kittilä Pokka, 10 October at Utsjoki Kevo, 18 October at Sodankylä and 21 October at Rovaniemi Apukka. The extremes are wide: Rovaniemi Apukka has seen first snow as early as 21 September (1968) and as late as 19 November (2011).
FMI also publishes the median snow depth on the 15th of each month. A dash means FMI lists no value.
| Median snow depth, cm | 15 Oct | 15 Nov | 15 Dec | 15 Jan | 15 Feb | 15 Mar | 15 Apr | 30 Apr |
|---|---|---|---|---|---|---|---|---|
| Rovaniemi airport | - | 9 | 28 | 47 | 66 | 77 | 64 | 27 |
| Kittilä Pokka | 0 | 20 | 40 | 61 | 78 | 88 | 82 | 62 |
| Saariselkä | 1 | 20 | 36 | 55 | 68 | 77 | 72 | 46 |
| Kilpisjärvi | 0 | 16 | 34 | 57 | 81 | 93 | 89 | 74 |
Snow is thinnest in Rovaniemi and deepest at Kilpisjärvi. By 15 May the median is 38 cm at Kilpisjärvi, 21 cm at Pokka and 5 cm at Saariselkä; Rovaniemi has no value. In Sodankylä the permanent snow cover lasts 203 days on average (about seven months), ranging from 159 to 229 days. FMI says snow lingers until the end of May in the northernmost parts. April is therefore a snow month in the north, not a thaw month, although it is also when daylight is longest, as the next section shows. Our aurora timing guide deals with the dark side of those months.
December snow varies a lot: Sodankylä's median on 15 December is 33 cm, but the actual depth was 20 cm in 2024 and 52 cm in 2025.
How many hours of daylight does Lapland get from October to April?
Rovaniemi's Sun is up for 9 hours 35 minutes on 15 October and only 2 hours 26 minutes on 15 December. Civil twilight adds light on both sides. At Inari the Sun doesn't clear the horizon on 15 December, yet usable twilight lasts almost five hours.
I queried the US Naval Observatory's sun and Moon API for the 15th of each month in winter 2026-27, using Rovaniemi (66.50° N, 25.73° E) and Inari village (68.91° N, 27.03° E). USNO defines sunrise and sunset as the upper edge of the Sun on the horizon, and civil twilight as the Sun's centre up to 6 degrees below it. The "light" column below runs from the start to the end of civil twilight.
| 15th of month | Rovaniemi: Sun up | Rovaniemi: light | Inari: Sun up | Inari: light |
|---|---|---|---|---|
| October | 9 h 35 | 11 h 22 | 9 h 16 | 11 h 15 |
| November | 5 h 43 | 8 h 03 | 4 h 34 | 7 h 26 |
| December | 2 h 26 | 6 h 02 | none | 4 h 56 |
| January | 4 h 15 | 7 h 01 | 2 h 13 | 6 h 11 |
| February | 8 h 10 | 10 h 04 | 7 h 37 | 9 h 47 |
| March | 11 h 38 | 13 h 21 | 11 h 34 | 13 h 30 |
| April | 15 h 25 | 17 h 31 | 15 h 53 | 18 h 22 |
On 15 December Rovaniemi's Sun rises at 10:59 and sets at 13:25, with civil twilight from 09:11 to 15:13. At Inari the same day runs from 09:39 to 14:35 in twilight with no sunrise. The shortest Rovaniemi day is 21 December, with 2 hours 14 minutes of sun.
The pattern is not symmetrical. January has more light than December, and by March both places have almost 12 hours of sun. In April the twilight at Inari runs to 22:25. This matters for dark-sky plans: see the darkness table in our aurora guide for astronomical darkness, a much stricter standard.
Where is the polar night, and which dates does it cover?
The polar night, or kaamos, is the period when the Sun doesn't rise. Rovaniemi has none. In winter 2026-27 my calculation gives about 14 days at Ylläs, about five weeks at Ivalo and 52 days at Utsjoki. There is still twilight at midday.
Finavia says the polar night starts at the end of November and lasts up to 52 days in Utsjoki and Nuorgam, and that "there is twilight at noon". My results match that. I found each boundary by asking the USNO API, day by day, whether the Sun rises, for a flat horizon at the coordinates I chose:
| Place | First day without sunrise | Last day | Days |
|---|---|---|---|
| Rovaniemi | none | none | 0 |
| Sodankylä | 20 Dec | 23 Dec | 4 |
| Levi (Kittilä) | 12 Dec | 31 Dec | 20 |
| Ylläs | 15 Dec | 28 Dec | 14 |
| Saariselkä | 6 Dec | 6 Jan | 32 |
| Ivalo | 4 Dec | 8 Jan | 36 |
| Inari village | 2 Dec | 10 Jan | 40 |
| Kilpisjärvi | 1 Dec | 11 Jan | 42 |
| Utsjoki | 26 Nov | 16 Jan | 52 |
| Nuorgam | 25 Nov | 16 Jan | 53 |
Treat Sodankylä's four days as marginal; a few kilometres of latitude or a change in the horizon changes it. Trees and fells hide the Sun for longer than a flat horizon would, so on the ground the sunless period can be longer than in the table. It also shifts by a day from year to year.
How much do Lapland winters vary from year to year?
A lot, in both directions. Rovaniemi's January 2026 mean was -18.3 °C, 8.0 °C below the normal, while February to April 2025 and March and April 2026 were warmer than normal.
The table compares the last two winters at Rovaniemi with the 1991-2020 normal, using FMI's monthly statistics for each month (from February 2026 FMI labels the station "Rovaniemi lentoasema AWOS").
| Mean temperature, °C | Oct | Nov | Dec | Jan | Feb | Mar | Apr |
|---|---|---|---|---|---|---|---|
| 1991-2020 normal | 0.8 | -4.4 | -7.7 | -10.3 | -10.3 | -5.6 | 0.1 |
| 2024-25 | 2.6 | -3.3 | -7.4 | -10.6 | -5.9 | -3.5 | 0.4 |
| 2025-26 | 4.0 | -6.2 | -6.3 | -18.3 | -13.8 | -0.5 | 3.1 |
February 2025 was 4.4 °C warmer than normal; January 2026 was 8.0 °C colder; March 2026 was 5.1 °C warmer. Sodankylä's January 2026 mean was -21.2 °C against a normal of -12.5 °C. Snow shifted too, with Sodankylä's measured depth on 15 January 68 cm in 2026 and 38 cm in 2025.
FMI's reference-period page says Finland's mean temperature for 1991-2020 is about 2.9 °C, around 0.6 °C warmer than 1981-2010 and about 1.3 °C warmer than 1961-1990, with the largest rise in December. I haven't found an FMI figure for Lapland's own trend, so I make no claim about it. Check the forecast before you leave, and keep the clothing flexible.
What does the cold feel like, and what should you wear?
Dress in three layers and add extras as the temperature drops. Visit Rovaniemi's advice is a dry base layer, a fleece or wool middle layer and a wind, rain and snow-proof outer layer, with a hat, mittens and warm boots. The table ties that to the monthly averages above, and our what to wear in Lapland guide covers clothing by activity.
| Conditions (Rovaniemi / north) | What it means | What to add |
|---|---|---|
| October, April: about 0 °C, daily highs +3 to +4 °C at Rovaniemi | Wet snow and slush, thaw and refreeze | Waterproof outer layer, boots with grip or ice cleats |
| November, March: mean -4 to -9 °C | Dry cold, short days in November | Full three layers, hat, mittens |
| December to February: mean -8 to -13 °C, lows -13 to -18 °C | Standing still gets cold quickly | Thick extra jacket, spare mittens, scarf, warm socks |
| Cold spells: -30 °C and below | Yellow warning level in the north | Add everything, limit exposed skin, shorten outings |
Visit Rovaniemi tells you to leave room to wiggle your toes in your boots, and says that for very cold conditions and stationary activities you should add "an additional thick jacket, extra mittens, or a scarf". It also notes you can rent winter clothing in Rovaniemi. For children, see our family clothing and pacing guide.
What does the cold feel like? Skin cools faster as the wind rises, which is why FMI sets its frost warnings on temperature or wind chill. Inland Lapland is often calm in winter, with Ivalo recording calm conditions on about one December observation in seven. A fell top or a snowmobile ride at speed is different, so dress for the wind of your activity, not the village.
Plan around the daylight too. In midwinter the usable hours are short, and from Saariselkä northwards there is no direct sun for weeks between early December and early January. Our best time to visit Lapland guide weighs these conditions against crowds and prices, and the Lapland itinerary guide shows how to leave room for weather days.