Tornio weather in December

In December, Tornio sees average daytime highs of -3°C and overnight lows near -7°C, with 58 mm of precipitation across 12 wet days and about 2.4 hours of daylight. It is the 10th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about -1°C in the first days to -5°C by the end. The sky is clear or mostly clear about 9% of the time in December, and the air most often feels dry.

Daylight stretches from about 3 h 30 min at the start of December to 2 h 18 min by month's end. Set against the rest of the year, December is Tornio's 12th-clearest and 2nd-windiest month. For the whole year in context, see Tornio's year-round climate.

Daytime high
-3°
10th warmest
Overnight low
-7°
4th coldest
Precipitation
58 mm
12 wet days
Daylight
2 h 06 min
11:15 AM – 1:24 PM
Cloud cover
83%
12th clearest
Wind
18 km/h
2nd windiest
Solar energy
0.01 kWh/m²
Travel score
0.0
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about -1°C in the first days to -5°C by the end.

A typical December day in Tornio reaches about -3°C in the afternoon and slips back to -7°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -11°C and 3°C. Set against its neighbours, December runs about 4°C cooler than November and about 3°C warmer than January.

-20°-15°-10°-5°151015202531
Avg high (°C)Avg low (°C)
1-1-4
2-1-5
3-1-5
4-1-5
5-1-5
6-1-5
7-1-5
8-1-5
9-2-5
10-2-6
11-2-6
12-2-6
13-2-6
14-2-6
15-3-7
16-3-7
17-3-7
18-3-7
19-3-8
20-4-8
21-4-8
22-4-8
23-4-8
24-4-9
25-4-9
26-4-9
27-5-9
28-5-9
29-5-9
30-5-9
31-5-9

How December really feels in Tornio

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
31 feel bitter (≤ -10°C)

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Tornio weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-6° / -11°469.510.940.0
Feb-7° / -11°38910.17.50.0
Mar-3° / -8°388.49.111.10.0
Apr / -3°347.24.614.80.0
May / 469.10.918.51.3
Jun13° / 569.7021.63.8
Jul18° / 13°6510.8020.25.6
Aug17° / 12°7210.8016.55.1
Sep12° / 7010.5012.82.9
Oct / 6310.62.29.10.4
Nov / -3°6812.77.75.30.0
Dec-3° / -7°581210.72.40.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 7% of December, with mostly cloudy or overcast conditions the remaining 84%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11585
21585
31684
41684
51684
61684
71684
81684
91684
101684
111684
121783
131783
141684
151684
161783
171783
181783
191783
201783
211783
221783
231684
241684
251684
261783
271783
281783
291684
301684
311684

Chance of precipitation in December

Any precipitationSnow

Tornio gets around 58 mm of rain and snow over 12 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 38% and peaks near 45% on the wettest days, and about 11 days bring snow. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14535
24535
34435
44436
54336
64336
74236
84235
94135
104135
114035
123935
133934
143834
153834
163734
173733
183633
193633
203633
213533
223533
233533
243533
253533
263434
273434
283434
293334
303335
313335

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 18 km/h in December.

Across December, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 3 h 30 min at the start of December to 2 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over December. Sunrise moves from 10:29 AM to 11:17 AM, and sunset from 1:58 PM to 1:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
13.510:291:58
23.410:321:55
33.310:361:52
43.210:401:49
53.110:431:46
63.010:471:44
72.910:501:41
82.810:531:39
92.710:571:36
102.611:001:34
112.511:031:32
122.411:061:30
132.311:081:28
142.311:111:26
152.211:131:25
162.111:151:24
172.111:171:23
182.011:191:22
192.011:211:21
202.011:221:21
212.011:231:21
222.011:231:22
232.011:241:22
242.011:241:23
252.011:231:24
262.011:231:26
272.111:221:27
282.111:211:29
292.211:201:31
302.311:181:34
312.311:171:36

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.01 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.01 kWh/m² to a high of 5.78 kWh/m² in June across the year — December's 0.01 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.0Dim
20.0Dim
30.0Dim
40.0Dim
50.0Dim
60.0Dim
70.0Dim
80.0Dim
90.0Dim
100.0Dim
110.0Dim
120.0Dim
130.0Dim
140.0Dim
150.0Dim
160.0Dim
170.0Dim
180.0Dim
190.0Dim
200.0Dim
210.0Dim
220.0Dim
230.0Dim
240.0Dim
250.0Dim
260.0Dim
270.0Dim
280.0Dim
290.0Dim
300.0Dim
310.0Dim
Planning a trip in December

Is December a good time to visit Tornio?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.0
Sightseeing
7th-best month of the year
0.0
Beach & pool
5th-best month of the year

December is a weaker month for outdoor sightseeing in Tornio.

What to pack for Tornio in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Tornio sees daytime highs around -3°C and nights near -7°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 12 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Tornio in December

The nearest coast averages about 2°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 25 km away) is warmest in August at about 15°C and coldest in March near -0°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

-5°0°5°10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan0Bracing
Feb0Bracing
Mar0Bracing
Apr0Bracing
May3Bracing
Jun9Bracing
Jul15Bracing
Aug15Cool
Sep12Bracing
Oct8Bracing
Nov4Bracing
Dec2Bracing

UV index in Tornio in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 0. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tornio peaks around July 14 at about 4 (moderate) — a little sun protection helps at midday. It bottoms out near December 17 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJul 14UV 4Dec 17UV 0
UV index (midday)Level
Jan0Low
Feb0Low
Mar1Low
Apr2Moderate
May4Moderate
Jun4Moderate
Jul4Moderate
Aug3Moderate
Sep2Low
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Tornio?

Tornio sits at 65.8°N, 24.1°E, 6 m above sea level, in Finland. The nearest listed city is Kemi, 23 km away.

HaukipudasLuleåRovaniemiOuluBodenRaahePiteå

Topography around Tornio

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tornio.

Within 3 km, the terrain around Tornio has only modest variations in elevation — a maximum elevation change of 24 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 75 m; within 80 km, significant variations in elevation — a maximum elevation change of 436 m.

The land around Tornio is covered by trees (46%) within 3 km, trees (55%) and water (26%) within 16 km, and trees (56%) and water (34%) within 80 km.

3 km
24 m
16 km
75 m
80 km
436 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Kemi 23 km · Haukipudas 93 km · Luleå 96 km · Rovaniemi 100 km · Oulu 111 km · Boden 112 km · Raahe 130 km · Piteå 136 km

Finland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 85% of US
price level, 2025
GDP per capita
$56,149
2025
Happiness
7.8 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1
per 100k, 2023
Road deaths
3.9
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 603
Religion
Lutheran 67%none 31%other 2%Greek Orthodox 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Tornio (65.8481°, 24.1466°, elevation 6 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).