Seinäjoki weather in January

In January, Seinäjoki sees average daytime highs of -3°C and overnight lows near -9°C, with 33 mm of precipitation across 9.4 wet days and about 5.5 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near -3°C through the month. The sky is clear or mostly clear about 11% of the time in January, and the air most often feels dry.

Daylight stretches from about 4 h 30 min at the start of January to 6 h 42 min by month's end. Set against the rest of the year, January is Seinäjoki's 11th-clearest and 1st-windiest month. For the whole year in context, see Seinäjoki's year-round climate.

Daytime high
-3°
12th warmest
Overnight low
-9°
2nd coldest
Precipitation
33 mm
9.4 wet days
Daylight
5 h 24 min
9:55 AM – 3:21 PM
Cloud cover
82%
11th clearest
Wind
13 km/h
1st windiest
Solar energy
0.18 kWh/m²
Travel score
0.0
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near -3°C through the month.

A typical January day in Seinäjoki reaches about -3°C in the afternoon and slips back to -9°C overnight — a 5°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, January runs about 2°C cooler than December and on par with February.

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

How January really feels in Seinäjoki

Once humidity and wind are folded in, January 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 January is cold — wind chill drags the overnight "feels like" below the raw low.

Seinäjoki weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -9°339.49.15.50.0
Feb-3° / -9°267.27.68.20.0
Mar / -6°297.76.911.20.0
Apr / -1°368.9414.41.4
May14° / 4910.70.317.54.1
Jun18° / 7212.2019.45.5
Jul21° / 12°8413.1018.65.9
Aug19° / 10°7412.7015.85.7
Sep14° / 539.8012.73.9
Oct / 5410.22.29.50.8
Nov / -2°459.95.36.40.0
Dec-2° / -6°4110.68.34.60.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 8% of January, with mostly cloudy or overcast conditions the remaining 81%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12179
22179
32179
42179
52179
62080
71981
81981
91981
101981
111981
121981
131882
141882
151882
161882
171783
181783
191684
201684
211684
221684
231684
241684
251783
261783
271882
281882
291882
301981
311981

Chance of precipitation in January

Any precipitationSnow

Seinäjoki gets around 33 mm of rain and snow over 9.4 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 31% and peaks near 34% on the wettest days, and about 9 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13432
23332
33332
43332
53332
63332
73332
83331
93331
103330
113230
123229
133229
143228
153128
163128
173128
183028
193028
203028
212928
222928
232828
242828
252829
262829
272830
282830
292830
302831
312831

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January 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 January

Winds average 13 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 4 h 30 min at the start of January to 6 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 132 minutes over January. Sunrise moves from 10:16 AM to 9:20 AM, and sunset from 2:48 PM to 4:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
14.510:162:48
24.610:152:49
34.610:142:51
44.710:142:53
54.710:122:55
64.810:112:57
74.810:102:59
84.910:093:01
94.910:073:03
105.010:063:06
115.110:043:08
125.110:033:10
135.210:013:13
145.39:593:15
155.39:573:18
165.49:553:21
175.59:533:23
185.69:513:26
195.79:493:29
205.79:473:32
215.89:453:34
225.99:423:37
236.09:403:40
246.19:383:43
256.29:353:46
266.39:333:49
276.49:303:52
286.59:283:55
296.59:253:58
306.69:234:01
316.79:204:04

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.18 kWh/m².

For context, solar energy here swings from a low near 0.08 kWh/m² to a high of 5.44 kWh/m² in June across the year — January's 0.18 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
150.2Dim
160.2Dim
170.2Dim
180.2Dim
190.2Dim
200.2Dim
210.2Dim
220.2Dim
230.3Dim
240.3Dim
250.3Dim
260.3Dim
270.3Dim
280.3Dim
290.3Dim
300.4Dim
310.4Dim
Planning a trip in January

Is January a good time to visit Seinäjoki?

Our two travel scores rate January 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
6th-best month of the year

January is a weaker month for outdoor sightseeing in Seinäjoki.

What to pack for Seinäjoki in January

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

In January, Seinäjoki sees daytime highs around -3°C and nights near -9°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 9 days see rain.

a warm layera heavy coatrain gear

UV index in Seinäjoki in January

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Seinäjoki peaks around June 20 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJun 20UV 4Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb0Low
Mar1Low
Apr2Moderate
May4Moderate
Jun4Moderate
Jul4Moderate
Aug4Moderate
Sep2Low
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Seinäjoki?

Seinäjoki sits at 62.8°N, 22.8°E, 50 m above sea level, in Finland. The nearest listed city is Kurikka, 29 km away.

KorsholmVaasaJakobstadKokkolaYlöjärviÄänekoski

Topography around Seinäjoki

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

Within 3 km, the terrain around Seinäjoki has only modest variations in elevation — a maximum elevation change of 69 m around an average of 50 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 90 m; within 80 km, significant variations in elevation — a maximum elevation change of 255 m.

The land around Seinäjoki is covered by trees (38%), artificial surfaces (29%) and cropland (28%) within 3 km, trees (63%) and cropland (24%) within 16 km, and trees (72%) within 80 km.

3 km
69 m
16 km
90 m
80 km
255 m
treesgrasslandcroplandartificial surfaceswaterwetland
January weather nearby: Kurikka 29 km · Kauhava 36 km · Korsholm 68 km · Vaasa 70 km · Jakobstad 98 km · Kokkola 117 km · Ylöjärvi 143 km · Äänekoski 150 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 Seinäjoki (62.7945°, 22.8282°, elevation 50 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. 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).