Trollhättan weather in January

In January, Trollhättan sees average daytime highs of 2°C and overnight lows near -3°C, with 60 mm of precipitation across 11.2 wet days and about 6.8 hours of daylight. It is the 12th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 2°C through the month. The sky is clear or mostly clear about 15% of the time in January, and the air most often feels dry.

Daylight stretches from about 6 h 12 min at the start of January to 7 h 42 min by month's end. Set against the rest of the year, January is Trollhättan's 10th-clearest and 1st-windiest month. For the whole year in context, see Trollhättan's year-round climate.

Daytime high
12th warmest
Overnight low
-3°
2nd coldest
Precipitation
60 mm
11.2 wet days
Daylight
6 h 48 min
8:57 AM – 3:44 PM
Cloud cover
75%
10th clearest
Wind
15 km/h
1st windiest
Solar energy
0.41 kWh/m²
Travel score
0.0
out of 10

Trollhättan is urban area in Trollhättan Municipality, Sweden.

Founded
1916

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 2°C through the month.

A typical January day in Trollhättan reaches about 2°C in the afternoon and slips back to -3°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -4°C and 6°C. Set against its neighbours, January runs about 1°C cooler than December and on par with February.

-15°-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
12-2
22-2
32-2
42-2
52-2
62-2
72-2
82-2
92-2
102-2
112-2
122-2
132-2
142-2
152-2
162-2
172-2
182-2
192-2
202-2
212-3
222-3
231-3
241-3
251-3
261-3
271-3
281-3
291-3
301-3
311-3

How January really feels in Trollhättan

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
wind chill below the day's low

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

Trollhättan 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°6011.25.76.80.0
Feb / -3°469.35.68.90.0
Mar / -1°438.93.911.40.4
Apr11° / 499.41.1142.6
May15° / 6211.30.116.44.6
Jun19° / 10°8613.1017.85.5
Jul21° / 13°8412.4017.26.1
Aug20° / 12°9013.7015.15.8
Sep16° / 7511.6012.54.7
Oct11° / 7712.80.59.92.3
Nov / 61122.37.50.4
Dec / -1°6511.84.76.20.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 10% of January, with mostly cloudy or overcast conditions the remaining 75%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22575
32575
42575
52575
62476
72476
82476
92377
102377
112377
122278
132278
142377
152278
162278
172476
182476
192575
202575
212674
222773
232773
242872
252872
262971
272971
282971
292971
303070
312971

Chance of precipitation in January

Any precipitationSnow

Trollhättan gets around 60 mm of rain and snow over 11.2 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 37% and peaks near 41% on the wettest days, and about 6 days bring snow. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
14020
24120
34119
44119
54119
64118
74118
84118
94118
104118
114118
124018
133918
143918
153818
163718
173618
183518
193418
203418
213319
223319
233220
243220
253221
263221
273222
283222
293222
303222
313322

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 15 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 6 h 12 min at the start of January to 7 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 90 minutes over January. Sunrise moves from 9:09 AM to 8:32 AM, and sunset from 3:19 PM to 4:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
16.29:093:19
26.29:083:21
36.29:083:22
46.39:073:23
56.39:073:25
66.39:063:26
76.49:063:28
86.49:053:29
96.49:043:31
106.59:033:33
116.59:023:34
126.69:013:36
136.69:003:38
146.78:593:40
156.78:583:42
166.88:573:44
176.88:553:46
186.98:543:48
197.08:533:50
207.08:513:52
217.18:503:54
227.18:483:56
237.28:463:58
247.38:454:00
257.38:434:03
267.48:414:05
277.58:404:07
287.58:384:09
297.68:364:12
307.78:344:14
317.78:324:16

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.41 kWh/m².

For context, solar energy here swings from a low near 0.25 kWh/m² to a high of 5.72 kWh/m² in June across the year — January's 0.41 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.3Dim
20.3Dim
30.3Dim
40.3Dim
50.3Dim
60.3Dim
70.3Dim
80.3Dim
90.3Dim
100.3Dim
110.3Dim
120.3Dim
130.3Dim
140.4Dim
150.4Dim
160.4Dim
170.4Dim
180.4Dim
190.4Dim
200.5Dim
210.5Dim
220.5Dim
230.5Dim
240.5Dim
250.6Dim
260.6Dim
270.6Dim
280.6Dim
290.6Dim
300.7Dim
310.7Dim
Planning a trip in January

Is January a good time to visit Trollhättan?

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

0.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
8th-best month of the year

January is a weaker month for outdoor sightseeing in Trollhättan.

What to pack for Trollhättan in January

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

In January, Trollhättan sees daytime highs around 2°C and nights near -3°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 Trollhättan in January

The nearest coast averages about 4°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 56 km away) is warmest in August at about 18°C and coldest in February near 3°C.

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

0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr6Bracing
May11Bracing
Jun15Bracing
Jul17Cool
Aug18Cool
Sep15Cool
Oct12Bracing
Nov9Bracing
Dec6Bracing

UV index in Trollhättan 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 Trollhättan peaks around June 17 at about 5 (moderate) — a little sun protection helps at midday. It bottoms out near December 20 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 17UV 5Dec 20UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May5Moderate
Jun5Moderate
Jul5Moderate
Aug4Moderate
Sep3Moderate
Oct1Low
Nov1Low
Dec0Low
Location & terrain

Where is Trollhättan?

Trollhättan sits at 58.3°N, 12.3°E, 49 m above sea level, in Sweden. The nearest listed city is Vänersborg, 11 km away.

Topography around Trollhättan

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

Within 3 km, the terrain around Trollhättan has only modest variations in elevation — a maximum elevation change of 107 m around an average of 57 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 186 m; within 80 km, significant variations in elevation — a maximum elevation change of 343 m.

The land around Trollhättan is covered by trees (50%) and artificial surfaces (24%) within 3 km, trees (63%) within 16 km, and trees (50%) and water (28%) within 80 km.

3 km
107 m
16 km
186 m
80 km
343 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Vänersborg 11 km · Uddevalla 21 km · Alingsås 42 km · Kungälv 49 km · Lidköping 56 km · Lerum 57 km · Partille 61 km · Björlanda 63 km

Sweden travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 87% of US
price level, 2025
GDP per capita
$63,133
2025
Happiness
7.3 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.1
per 100k, 2023
Road deaths
3.1
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 609
Religion
Church of Sweden 54%none or unspecified 37%other 9%

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 Trollhättan (58.2837°, 12.2886°, elevation 49 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).