Janakkala weather in January

In January, Janakkala sees average daytime highs of -3°C and overnight lows near -8°C, with 40 mm of precipitation across 9.7 wet days and about 6.1 hours of daylight. It is the 12th-warmest and 9th-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 9% of the time in January, and the air most often feels dry.

Daylight stretches from about 5 h 18 min at the start of January to 7 h 12 min by month's end. Set against the rest of the year, January is Janakkala's 11th-clearest and 2nd-windiest month. For the whole year in context, see Janakkala's year-round climate.

Daytime high
-3°
12th warmest
Overnight low
-8°
2nd coldest
Precipitation
40 mm
9.7 wet days
Daylight
6 h 06 min
9:29 AM – 3:33 PM
Cloud cover
85%
11th clearest
Wind
13 km/h
2nd windiest
Solar energy
0.24 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 Janakkala reaches about -3°C in the afternoon and slips back to -8°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)
1-3-7
2-3-7
3-3-7
4-3-7
5-3-7
6-3-7
7-2-7
8-2-7
9-2-7
10-3-7
11-3-7
12-3-7
13-3-7
14-3-7
15-3-7
16-3-7
17-3-7
18-3-8
19-3-8
20-3-8
21-3-8
22-3-8
23-3-8
24-4-8
25-4-9
26-4-9
27-4-9
28-4-9
29-4-9
30-4-9
31-4-9

How January really feels in Janakkala

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.

Janakkala weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -8°409.710.16.10.0
Feb-3° / -9°3188.28.50.0
Mar / -6°328.17.611.30.0
Apr / -0°358.53.114.21.5
May15° / 4910.20.2174.4
Jun19° / 10°7612.3018.65.5
Jul21° / 13°8112.80186.0
Aug20° / 11°7112.2015.55.8
Sep14° / 5110.1012.64.0
Oct / 5410.51.59.71.0
Nov / -1°4710.35.170.0
Dec-1° / -5°4510.78.85.40.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in January.

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

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11783
21783
31783
41783
51684
61684
71684
81684
91585
101585
111585
121585
131585
141585
151585
161585
171585
181585
191585
201585
211585
221585
231684
241684
251684
261684
271684
281684
291783
301783
311882

Chance of precipitation in January

Any precipitationSnow

Janakkala gets around 40 mm of rain and snow over 9.7 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 32% and peaks near 34% on the wettest days, and about 10 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13432
23433
33433
43433
53433
63433
73433
83433
93433
103433
113433
123433
133332
143332
153332
163232
173232
183132
193132
203132
213032
223032
233032
243032
253033
263033
273033
283033
293033
303033
313033

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.

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.

05101520151015202531
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 5 h 18 min at the start of January to 7 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 114 minutes over January. Sunrise moves from 9:45 AM to 8:59 AM, and sunset from 3:05 PM to 4:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
15.39:453:05
25.49:443:06
35.49:443:08
45.49:433:09
55.59:423:11
65.59:413:13
75.69:403:14
85.69:393:16
95.79:383:18
105.79:373:20
115.89:363:22
125.89:353:24
135.99:333:26
145.99:323:28
156.09:303:31
166.19:293:33
176.19:273:35
186.29:253:38
196.39:243:40
206.39:223:43
216.49:203:45
226.59:183:47
236.69:163:50
246.69:143:53
256.79:123:55
266.89:103:58
276.99:084:00
287.09:064:03
297.09:034:06
307.19:014:08
317.28:594:11

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.24 kWh/m².

For context, solar energy here swings from a low near 0.12 kWh/m² to a high of 5.31 kWh/m² in June across the year — January's 0.24 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.1Dim
20.1Dim
30.1Dim
40.1Dim
50.1Dim
60.2Dim
70.2Dim
80.2Dim
90.2Dim
100.2Dim
110.2Dim
120.2Dim
130.2Dim
140.2Dim
150.2Dim
160.2Dim
170.2Dim
180.3Dim
190.3Dim
200.3Dim
210.3Dim
220.3Dim
230.3Dim
240.3Dim
250.3Dim
260.4Dim
270.4Dim
280.4Dim
290.4Dim
300.4Dim
310.5Dim
Planning a trip in January

Is January a good time to visit Janakkala?

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 Janakkala.

What to pack for Janakkala in January

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

In January, Janakkala sees daytime highs around -3°C and nights near -8°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

UV index in Janakkala 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 Janakkala peaks around June 18 at about 5 (high) — 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateModerateLowJun 18UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5High
Jul5Moderate
Aug4Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Janakkala?

Janakkala sits at 60.9°N, 24.6°E, 118 m above sea level, in Finland. The nearest listed city is Hämeenlinna, 13 km away.

Topography around Janakkala

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

Within 3 km, the terrain around Janakkala has only modest variations in elevation — a maximum elevation change of 68 m around an average of 98 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 108 m; within 80 km, only modest variations in elevation — a maximum elevation change of 225 m.

The land around Janakkala is covered by trees (57%) and cropland (27%) within 3 km, trees (67%) within 16 km, and trees (71%) within 80 km.

3 km
68 m
16 km
108 m
80 km
225 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Hämeenlinna 13 km · Riihimäki 20 km · Hyvinge 33 km · Mäntsälä 49 km · Nurmijärvi 50 km · Hollola 50 km · Valkeakoski 51 km · Forssa 54 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 Janakkala (60.9°, 24.6°, elevation 118 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).