Jakobstad weather in December

In December, Jakobstad sees average daytime highs of -1°C and overnight lows near -4°C, with 44 mm of precipitation across 10.7 wet days and about 4.1 hours of daylight. It is the 10th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 1°C in the first days to -2°C by the end. The sky is clear or mostly clear about 11% of the time in December, and the air most often feels dry.

Daylight stretches from about 4 h 42 min at the start of December to 4 hours by month's end. Set against the rest of the year, December is Jakobstad's 10th-clearest and 1st-windiest month. For the whole year in context, see Jakobstad's year-round climate.

Daytime high
-1°
10th warmest
Overnight low
-4°
4th coldest
Precipitation
44 mm
10.7 wet days
Daylight
3 h 54 min
10:28 AM – 2:23 PM
Cloud cover
81%
10th clearest
Wind
19 km/h
1st windiest
Solar energy
0.05 kWh/m²
Travel score
0.0
out of 10
Air quality
Excellent
PM10 11.7 µg/m³ · 2019

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 -2°C by the end.

A typical December day in Jakobstad reaches about -1°C in the afternoon and slips back to -4°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between -7°C and 4°C. Set against its neighbours, December runs about 3°C cooler than November and about 2°C warmer than January.

-20°-10°10°151015202531
Avg high (°C)Avg low (°C)
11-2
21-2
31-2
41-2
51-2
61-2
71-3
80-3
90-3
100-3
110-3
120-3
130-3
140-3
150-4
160-4
17-1-4
18-1-4
19-1-4
20-1-4
21-1-5
22-1-5
23-1-5
24-2-5
25-2-5
26-2-5
27-2-5
28-2-6
29-2-6
30-2-6
31-2-6

How December really feels in Jakobstad

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
15 feel bitter (≤ -10°C)

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

Jakobstad weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -7°339.29.25.10.0
Feb-4° / -9°277.17.380.0
Mar-0° / -6°287.37.111.20.0
Apr / -1°317.33.514.50.3
May10° / 438.30.317.72.4
Jun15° / 519.6019.94.4
Jul19° / 13°6811.40195.8
Aug18° / 12°6811.20165.6
Sep13° / 5810.5012.73.6
Oct / 5710.91.89.40.8
Nov / -1°5011.16.16.20.0
Dec-1° / -4°4410.78.24.10.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 82%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21783
31783
41783
51783
61882
71882
81882
91783
101783
111783
121783
131882
141882
151882
161981
171981
181981
191981
202080
212080
222080
232080
242080
251981
261981
271981
281981
292080
301981
312080

Chance of precipitation in December

Any precipitationSnow

Jakobstad gets around 44 mm of rain and snow over 10.7 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 35% and peaks near 37% on the wettest days, and about 8 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13722
23722
33722
43722
53623
63623
73623
83623
93624
103624
113625
123626
133626
143627
153527
163528
173528
183429
193429
203429
213429
223430
233430
243430
253430
263431
273431
283431
293431
303431
313432

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 19 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 19 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
120light breeze
220light breeze
320light breeze
420light breeze
520light breeze
620light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3119light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 4 h 42 min at the start of December to 4 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over December. Sunrise moves from 9:57 AM to 10:32 AM, and sunset from 2:41 PM to 2:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
14.79:572:41
24.79:592:39
34.610:022:37
44.510:042:36
54.510:072:34
64.410:092:33
74.310:122:31
84.310:142:30
94.210:162:29
104.210:182:27
114.110:202:26
124.110:222:25
134.010:232:25
144.010:252:24
154.010:262:23
163.910:282:23
173.910:292:23
183.910:302:23
193.910:312:23
203.810:322:23
213.810:322:23
223.810:332:23
233.810:332:24
243.810:342:25
253.910:342:25
263.910:342:26
273.910:342:27
283.910:332:29
294.010:332:30
304.010:322:31
314.010:322:33

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.05 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.05 kWh/m² to a high of 5.88 kWh/m² in June across the year — December's 0.05 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.1Dim
20.1Dim
30.1Dim
40.1Dim
50.1Dim
60.1Dim
70.1Dim
80.1Dim
90.1Dim
100.1Dim
110.1Dim
120.1Dim
130.1Dim
140.1Dim
150.1Dim
160.1Dim
170.1Dim
180.1Dim
190.1Dim
200.1Dim
210.1Dim
220.1Dim
230.1Dim
240.1Dim
250.1Dim
260.1Dim
270.1Dim
280.1Dim
290.1Dim
300.1Dim
310.1Dim
Planning a trip in December

Is December a good time to visit Jakobstad?

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

0.0
Sightseeing
8th-best month of the year
0.0
Beach & pool
5th-best month of the year

December is a weaker month for outdoor sightseeing in Jakobstad.

What to pack for Jakobstad in December

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

In December, Jakobstad sees daytime highs around -1°C and nights near -4°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 11 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Jakobstad in December

The nearest coast averages about 3°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 17 km away) is warmest in August at about 16°C and coldest in February near 0°C.

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

0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan1Bracing
Feb0Bracing
Mar0Bracing
Apr1Bracing
May3Bracing
Jun8Bracing
Jul14Bracing
Aug16Cool
Sep13Bracing
Oct9Bracing
Nov5Bracing
Dec3Bracing

UV index in Jakobstad 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 Jakobstad peaks around July 14 at about 4 (moderate) — a little sun protection helps at midday. It bottoms out near January 1 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 4Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb0Low
Mar1Low
Apr2Moderate
May4Moderate
Jun4Moderate
Jul4Moderate
Aug4Moderate
Sep2Low
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Jakobstad?

Jakobstad sits at 63.7°N, 22.7°E, 15 m above sea level, in Finland. The nearest listed city is Kokkola, 28 km away.

KauhavaKorsholmVaasaSeinäjokiYlivieskaKurikkaUmeå

Topography around Jakobstad

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

Within 3 km, the terrain around Jakobstad has only modest variations in elevation — a maximum elevation change of 26 m around an average of 9 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 56 m; within 80 km, only modest variations in elevation — a maximum elevation change of 181 m.

The land around Jakobstad is covered by trees (57%) within 3 km, trees (46%) and water (35%) within 16 km, and trees (48%) and water (38%) within 80 km.

3 km
26 m
16 km
56 m
80 km
181 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Kokkola 28 km · Kauhava 66 km · Korsholm 80 km · Vaasa 84 km · Seinäjoki 98 km · Ylivieska 101 km · Kurikka 119 km · Umeå 121 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 Jakobstad (63.6749°, 22.7026°, elevation 15 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).