Asker weather in December

In December, Asker sees average daytime highs of 0°C and overnight lows near -4°C, with 70 mm of precipitation across 11.1 wet days and about 5.7 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 2°C in the first days to -1°C by the end. The sky is clear or mostly clear about 17% of the time in December, and the air most often feels dry.

Daylight stretches from about 6 h 12 min at the start of December to 5 h 42 min by month's end. Set against the rest of the year, December is Asker's 11th-clearest and 4th-windiest month. For the whole year in context, see Asker's year-round climate.

Daytime high
10th warmest
Overnight low
-4°
3rd coldest
Precipitation
70 mm
11.1 wet days
Daylight
5 h 36 min
9:26 AM – 3:03 PM
Cloud cover
74%
11th clearest
Wind
9 km/h
4th windiest
Solar energy
0.2 kWh/m²
Travel score
0.0
out of 10

Asker is Municipal centre of Asker Municipality, Norway.

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 2°C in the first days to -1°C by the end.

A typical December day in Asker reaches about 0°C in the afternoon and slips back to -4°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -7°C and 6°C. Set against its neighbours, December runs about 4°C cooler than November and about 1°C warmer than January.

-20°-10°10°151015202531
Avg high (°C)Avg low (°C)
12-2
22-2
32-2
42-2
52-2
61-3
71-3
81-3
91-3
101-3
111-4
121-4
130-4
140-4
150-4
160-4
170-5
180-5
190-5
200-5
21-1-5
22-1-5
23-1-5
24-1-6
25-1-6
26-1-6
27-1-6
28-1-6
29-1-6
30-1-6
31-1-6

How December really feels in Asker

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
4 feel bitter (≤ -10°C)

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

Asker weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -6°7311.19.76.40.0
Feb / -6°518.57.78.70.0
Mar / -3°538.1611.30.2
Apr10° / 518.42.314.12.3
May15° / 7110.40.616.74.6
Jun19° / 10°8511.5018.35.8
Jul21° / 13°9211.8017.66.2
Aug20° / 13°9612.9015.35.9
Sep16° / 8610.3012.64.7
Oct10° / 9111.61.19.81.9
Nov / 9011.94.97.20.1
Dec / -4°7011.17.15.70.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 71%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12278
22278
32377
42377
52377
62476
72476
82674
92674
102773
112773
122872
132872
143070
153070
163169
173169
183268
193268
203268
213268
223169
233169
243268
253169
263367
273268
283268
293268
303169
313268

Chance of precipitation in December

Any precipitationSnow

Asker gets around 70 mm of rain and snow over 11.1 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 36% and peaks near 41% on the wettest days, and about 7 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
14124
24124
34124
44024
54024
64024
73924
83924
93823
103722
113622
123621
133521
143420
153320
163220
173220
183220
193220
203221
213221
223222
233322
243323
253324
263424
273425
283526
293627
303628
313729

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 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 6 h 12 min at the start of December to 5 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over December. Sunrise moves from 9:03 AM to 9:31 AM, and sunset from 3:13 PM to 3:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
16.29:033:13
26.19:053:12
36.19:073:10
46.09:093:09
56.09:113:08
65.99:123:08
75.99:143:07
85.89:163:06
95.89:173:05
105.89:193:05
115.79:203:04
125.79:213:04
135.79:233:03
145.79:243:03
155.69:253:03
165.69:263:03
175.69:273:03
185.69:283:03
195.69:283:03
205.69:293:03
215.69:303:04
225.69:303:04
235.69:313:05
245.69:313:05
255.69:313:06
265.69:313:07
275.69:313:08
285.69:313:09
295.69:313:10
305.79:313:11
315.79:313:12

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.2 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.2 kWh/m² to a high of 5.59 kWh/m² in June across the year — December's 0.2 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
70.2Dim
80.2Dim
90.2Dim
100.2Dim
110.2Dim
120.2Dim
130.2Dim
140.2Dim
150.2Dim
160.2Dim
170.2Dim
180.2Dim
190.2Dim
200.2Dim
210.2Dim
220.2Dim
230.2Dim
240.2Dim
250.2Dim
260.2Dim
270.2Dim
280.2Dim
290.2Dim
300.2Dim
310.2Dim
Planning a trip in December

Is December a good time to visit Asker?

Our two travel scores rate December 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
7th-best month of the year

December is a weaker month for outdoor sightseeing in Asker.

What to pack for Asker in December

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

In December, Asker sees daytime highs around 0°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 Asker in December

The nearest coast averages about 6°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 52 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°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr6Bracing
May11Bracing
Jun15Cool
Jul18Cool
Aug18Cool
Sep15Cool
Oct12Bracing
Nov9Bracing
Dec6Bracing

UV index in Asker 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 Asker peaks around July 17 at about 5 (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 17UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun4Moderate
Jul5Moderate
Aug4Moderate
Sep3Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Asker?

Asker sits at 59.8°N, 10.4°E, 119 m above sea level, in Norway. The nearest listed city is Drammen, 16 km away.

Topography around Asker

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

Within 3 km, the terrain around Asker has significant variations in elevation — a maximum elevation change of 345 m around an average of 129 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 599 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,482 m.

The land around Asker is covered by trees (62%) within 3 km, trees (60%) and water (22%) within 16 km, and trees (73%) within 80 km.

3 km
345 m
16 km
599 m
80 km
1,482 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Drammen 16 km · Oslo 19 km · Lillestrøm 37 km · Moss 46 km · Horten 46 km · Kongsberg 48 km · Tønsberg 63 km · Sarpsborg 72 km

Norway travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 91% of US
price level, 2025
GDP per capita
$94,594
2025
Happiness
7.2 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
2.1
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 613
Religion
Church of Norway 68%other Christian 4%Muslim 3%Roman Catholic 3%

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 Asker (59.8333°, 10.4372°, elevation 119 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).