Allerød weather in December

In December, Allerød sees average daytime highs of 4°C and overnight lows near 0°C, with 50 mm of precipitation across 11.4 wet days and about 6.8 hours of daylight. It is the 10th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 5°C in the first days to 3°C by the end. The sky is clear or mostly clear about 12% of the time in December, and the air most often feels dry.

Daylight stretches from about 7 h 06 min at the start of December to 6 h 48 min by month's end. Set against the rest of the year, December is Allerød's 11th-clearest and 3rd-windiest month. For the whole year in context, see Allerød's year-round climate.

Daytime high
10th warmest
Overnight low
4th coldest
Precipitation
50 mm
11.4 wet days
Daylight
6 h 42 min
8:45 AM – 3:29 PM
Cloud cover
78%
11th clearest
Wind
18 km/h
3rd windiest
Solar energy
0.37 kWh/m²
Travel score
0.0
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 5°C in the first days to 3°C by the end.

A typical December day in Allerød reaches about 4°C in the afternoon and slips back to 0°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -1°C and 8°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
152
252
352
452
552
651
751
851
951
1051
1151
1251
1341
1441
1541
1640
1740
1840
1940
2040
2140
2240
2340
2440
2540
2630
273-1
283-1
293-1
303-1
313-1

How December really feels in Allerød

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
wind chill below the day's low

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

Allerød weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°4811.347.40.0
Feb / -1°399.44.49.20.0
Mar / 429.82.411.40.6
Apr11° / 419.50.413.82.8
May16° / 5410.80164.9
Jun19° / 11°7111.5017.25.8
Jul21° / 13°7312.1016.76.2
Aug21° / 13°7512.7014.86.1
Sep17° / 10°5710.1012.55.3
Oct12° / 5811.4010.13.0
Nov / 4710.70.980.9
Dec / 5011.42.86.80.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% 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 76%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12080
22080
32179
42179
52179
62179
72278
82278
92377
102377
112377
122476
132476
142575
152575
162575
172575
182476
192476
202575
212575
222575
232575
242575
252575
262575
272575
282575
292575
302575
312575

Chance of precipitation in December

Any precipitationSnow

Allerød gets around 50 mm of rain and snow over 11.4 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 38% on the wettest days, and about 3 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1366
2366
3366
4376
5377
6377
7377
8377
9377
10377
11377
12368
13368
14358
15358
16358
17359
18359
193510
203510
213510
223510
233611
243611
253611
263611
273711
283711
293711
303811
313811

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 18 km/h in December.

Across December, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
117light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 7 h 06 min at the start of December to 6 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over December. Sunrise moves from 8:26 AM to 8:50 AM, and sunset from 3:35 PM to 3:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.18:263:35
27.18:283:34
37.18:293:33
47.08:313:32
57.08:323:32
67.08:333:31
76.98:353:31
86.98:363:30
96.98:373:30
106.88:393:29
116.88:403:29
126.88:413:29
136.88:423:29
146.88:433:29
156.78:443:29
166.78:453:29
176.78:453:29
186.78:463:29
196.78:473:29
206.78:483:30
216.78:483:30
226.78:493:30
236.78:493:31
246.78:493:32
256.78:503:32
266.78:503:33
276.78:503:34
286.78:503:34
296.78:503:35
306.88:503:36
316.88:503:37

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.37 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.37 kWh/m² to a high of 5.65 kWh/m² in June across the year — December's 0.37 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.4Dim
20.4Dim
30.4Dim
40.4Dim
50.4Dim
60.4Dim
70.4Dim
80.4Dim
90.4Dim
100.4Dim
110.4Dim
120.4Dim
130.4Dim
140.4Dim
150.4Dim
160.4Dim
170.4Dim
180.4Dim
190.4Dim
200.4Dim
210.4Dim
220.4Dim
230.4Dim
240.4Dim
250.4Dim
260.4Dim
270.4Dim
280.4Dim
290.4Dim
300.4Dim
310.4Dim
Planning a trip in December

Is December a good time to visit Allerød?

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
8th-best month of the year

December is a weaker month for outdoor sightseeing in Allerød.

What to pack for Allerød in December

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

In December, Allerød sees daytime highs around 4°C and nights near 0°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 11 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Allerød in December

The nearest coast averages about 5°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 17 km away) is warmest in August at about 18°C and coldest in February near 2°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
Feb2Bracing
Mar3Bracing
Apr6Bracing
May10Bracing
Jun14Bracing
Jul17Cool
Aug18Cool
Sep15Cool
Oct12Bracing
Nov8Bracing
Dec5Bracing

UV index in Allerød 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 Allerød peaks around July 12 at about 5 (high) — 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 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 12UV 5Dec 20UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Moderate
Apr3Moderate
May5Moderate
Jun5High
Jul5High
Aug5Moderate
Sep3Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Allerød?

Allerød sits at 55.9°N, 12.4°E, 48 m above sea level, in Denmark. The nearest listed city is Lillerød, 1.0 km away.

Topography around Allerød

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

Within 3 km, the terrain around Allerød has only modest variations in elevation — a maximum elevation change of 66 m around an average of 52 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 110 m; within 80 km, significant variations in elevation — a maximum elevation change of 286 m.

The land around Allerød is covered by trees (52%) and grassland (24%) within 3 km, trees (37%) and grassland (25%) within 16 km, and water (45%) and cropland (23%) within 80 km.

3 km
66 m
16 km
110 m
80 km
286 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Lillerød 1.0 km · Birkerød 5.0 km · Farum 7.0 km · Hillerød 7.0 km · Hørsholm 9.0 km · Stenløse 15 km · Ballerup 15 km · Frederikssund 18 km

Denmark travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E / F / K
230 V · 50 Hz
Prices
≈ 92% of US
price level, 2025
GDP per capita
$76,970
2025
Happiness
7.5 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
3.7
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 611
Religion
Evangelical Lutheran 71%other/none/unspecified 24%Muslim 4%

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 Allerød (55.8704°, 12.3574°, elevation 48 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).