Märsta weather in January

In January, Märsta sees average daytime highs of 0°C and overnight lows near -5°C, with 34 mm of precipitation across 8 wet days and about 6.5 hours of daylight. It is the 12th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 0°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 5 h 48 min at the start of January to 7 h 30 min by month's end. Set against the rest of the year, January is Märsta's 10th-clearest and 1st-windiest month. For the whole year in context, see Märsta's year-round climate.

Daytime high
12th warmest
Overnight low
-5°
2nd coldest
Precipitation
34 mm
8 wet days
Daylight
6 h 24 min
8:45 AM – 3:11 PM
Cloud cover
76%
10th clearest
Wind
13 km/h
1st windiest
Solar energy
0.35 kWh/m²
Travel score
0.0
out of 10

Märsta is urban area in Sigtuna Municipality, Sweden.

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 0°C through the month.

A typical January day in Märsta reaches about 0°C in the afternoon and slips back to -5°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between -6°C and 5°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)
10-5
20-5
30-5
40-5
50-5
60-4
70-4
80-4
90-4
100-4
110-4
120-4
130-4
140-4
150-4
160-4
170-4
180-4
190-4
200-5
210-5
220-5
230-5
240-5
250-5
260-5
270-5
280-5
290-5
300-5
310-5

How January really feels in Märsta

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
7 feel bitter (≤ -10°C)

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

Märsta 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 / -5°3485.66.50.0
Feb / -5°287.66.18.70.0
Mar / -3°297.44.611.30.2
Apr10° / 338.11.614.12.5
May16° / 459.40.216.75.1
Jun20° / 10°6710.8018.26.0
Jul22° / 12°7011.5017.66.4
Aug21° / 11°6912.1015.36.1
Sep16° / 508.5012.65.0
Oct10° / 489.40.29.82.1
Nov / 449.72.97.30.1
Dec / -3°42105.65.80.0

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 11% of January, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12872
22773
32773
42674
52674
62674
72674
82674
92674
102575
112575
122575
132575
142575
152575
162575
172674
182674
192674
202773
212773
222773
232773
242773
252773
262773
272773
282773
292674
302674
312674

Chance of precipitation in January

Any precipitationSnow

Märsta gets around 34 mm of rain and snow over 8 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 27% and peaks near 32% on the wettest days, and about 6 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13221
23220
33220
43120
53119
63019
73019
82918
92918
102818
112818
122718
132617
142617
152517
162417
172417
182417
192317
202317
212318
222318
232319
242419
252420
262420
272521
282521
292622
302722
312722

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 14 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
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light 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 48 min at the start of January to 7 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 102 minutes over January. Sunrise moves from 8:58 AM to 8:17 AM, and sunset from 2:45 PM to 3:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
15.88:582:45
25.88:582:46
35.88:582:48
45.98:572:49
55.98:562:51
65.98:562:52
76.08:552:54
86.08:542:56
96.18:532:57
106.18:522:59
116.28:513:01
126.28:503:03
136.38:493:05
146.38:473:07
156.48:463:09
166.48:453:11
176.58:433:13
186.68:423:15
196.68:403:18
206.78:393:20
216.88:373:22
226.88:353:24
236.98:333:27
247.08:323:29
257.08:303:32
267.18:283:34
277.28:263:36
287.38:243:39
297.38:223:41
307.48:203:44
317.58:173:46

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.35 kWh/m².

For context, solar energy here swings from a low near 0.2 kWh/m² to a high of 5.57 kWh/m² in June across the year — January's 0.35 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.2Dim
20.2Dim
30.2Dim
40.2Dim
50.2Dim
60.2Dim
70.3Dim
80.3Dim
90.3Dim
100.3Dim
110.3Dim
120.3Dim
130.3Dim
140.3Dim
150.3Dim
160.3Dim
170.3Dim
180.4Dim
190.4Dim
200.4Dim
210.4Dim
220.4Dim
230.4Dim
240.5Dim
250.5Dim
260.5Dim
270.5Dim
280.5Dim
290.6Dim
300.6Dim
310.6Dim
Planning a trip in January

Is January a good time to visit Märsta?

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 Märsta.

What to pack for Märsta in January

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

In January, Märsta sees daytime highs around 0°C and nights near -5°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 8 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Märsta in January

The nearest coast averages about 3°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 57 km away) is warmest in August at about 17°C and coldest in February near 1°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
Jan3Bracing
Feb1Bracing
Mar2Bracing
Apr3Bracing
May6Bracing
Jun11Bracing
Jul16Cool
Aug17Cool
Sep14Bracing
Oct10Bracing
Nov7Bracing
Dec4Bracing

UV index in Märsta 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 Märsta peaks around June 17 at about 5 (high) — a little sun protection helps at midday. It bottoms out near December 19 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 17UV 5Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5High
Jul5Moderate
Aug4Moderate
Sep3Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Märsta?

Märsta sits at 59.6°N, 17.9°E, 19 m above sea level, in Sweden. The nearest listed city is Upplands Väsby, 12 km away.

Topography around Märsta

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

Within 3 km, the terrain around Märsta has only modest variations in elevation — a maximum elevation change of 66 m around an average of 26 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 74 m; within 80 km, only modest variations in elevation — a maximum elevation change of 146 m.

The land around Märsta is covered by trees (38%) and grassland (28%) within 3 km, trees (52%) within 16 km, and trees (54%) and water (24%) within 80 km.

3 km
66 m
16 km
74 m
80 km
146 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Upplands Väsby 12 km · Vallentuna 16 km · Jakobsberg 22 km · Sollentuna 22 km · Täby 23 km · Tensta 25 km · Danderyd 26 km · Rinkeby 26 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 Märsta (59.6216°, 17.8548°, elevation 19 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).