Aalen weather in December

In December, Aalen sees average daytime highs of 3°C and overnight lows near -2°C, with 81 mm of precipitation across 14 wet days and about 8.1 hours of daylight. It is the 11th-warmest and 5th-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 14% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 18 min at the start of December to 8 h 06 min by month's end. Set against the rest of the year, December is Aalen's 11th-clearest and 2nd-windiest month. For the whole year in context, see Aalen's year-round climate.

Daytime high
11th warmest
Overnight low
-2°
3rd coldest
Precipitation
81 mm
14 wet days
Daylight
8 h 06 min
8:14 AM – 4:18 PM
Cloud cover
76%
11th clearest
Wind
12 km/h
2nd windiest
Solar energy
0.84 kWh/m²
Travel score
0.0
out of 10

Aalen is urban municipality located in the eastern part of the German state of Baden-Württemberg.

Air quality
Excellent
PM10 13.6 µg/m³ · 2019
Density
458/km²
people per km²
Founded
~700 CE

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 3°C through the month.

A typical December day in Aalen reaches about 3°C in the afternoon and slips back to -2°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between -2°C and 9°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)
14-1
24-1
34-1
44-1
54-1
63-1
73-1
83-1
93-1
103-1
113-1
123-1
133-2
143-2
153-2
163-2
173-2
183-2
193-2
203-2
213-2
223-2
233-2
243-2
253-2
263-2
273-2
283-2
293-2
303-2
313-2

How December really feels in Aalen

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.

Aalen weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°7312.46.38.50.0
Feb / -3°5910.75.89.80.0
Mar / 7713.43.911.61.4
Apr13° / 6412.21.113.43.5
May18° / 9914.60155.0
Jun21° / 11°9714.6015.95.7
Jul23° / 13°10114.6015.56.1
Aug23° / 13°9213.6014.26.3
Sep18° / 7312012.45.4
Oct13° / 7412.30.410.53.2
Nov / 7311.43.48.90.7
Dec / -2°81146.78.10.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12080
22179
32179
42179
52179
62179
72278
82278
92278
102278
112278
122377
132377
142476
152476
162476
172476
182476
192377
202476
212476
222476
232476
242575
252575
262575
272476
282476
292476
302575
312575

Chance of precipitation in December

Any precipitationSnow

Aalen gets around 81 mm of rain and snow over 14 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 45% and peaks near 46% on the wettest days, and about 7 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14217
24218
34318
44318
54419
64419
74520
84520
94521
104521
114522
124622
134622
144623
154623
164623
174623
184623
194623
204523
214523
224523
234523
244522
254522
264522
274521
284521
294521
304520
314520

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 12 km/h in December.

Across December, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
612calm
712calm
812calm
912calm
1012calm
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 18 min at the start of December to 8 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:59 AM to 8:20 AM, and sunset from 4:20 PM to 4:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.37:594:20
28.38:004:19
38.38:014:19
48.38:034:18
58.28:044:18
68.28:054:18
78.28:064:18
88.28:074:17
98.28:084:17
108.18:094:17
118.18:104:17
128.18:114:17
138.18:124:17
148.18:124:17
158.18:134:17
168.18:144:18
178.18:154:18
188.08:154:18
198.08:164:18
208.08:164:19
218.08:174:19
228.08:184:20
238.08:184:20
248.08:184:21
258.08:194:21
268.08:194:22
278.18:194:23
288.18:204:23
298.18:204:24
308.18:204:25
318.18:204:26

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.84 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.84 kWh/m² to a high of 5.54 kWh/m² in June across the year — December's 0.84 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.9Dim
20.9Dim
30.9Dim
40.9Dim
50.9Dim
60.9Dim
70.9Dim
80.9Dim
90.9Dim
100.9Dim
110.8Dim
120.8Dim
130.8Dim
140.8Dim
150.8Dim
160.8Dim
170.8Dim
180.8Dim
190.8Dim
200.8Dim
210.8Dim
220.8Dim
230.8Dim
240.8Dim
250.8Dim
260.8Dim
270.8Dim
280.8Dim
290.8Dim
300.8Dim
310.8Dim
Planning a trip in December

Is December a good time to visit Aalen?

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 Aalen.

What to pack for Aalen in December

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

In December, Aalen sees daytime highs around 3°C and nights near -2°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 14 days see rain.

a warm layerrain geara heavy coat

UV index in Aalen in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Aalen peaks around July 15 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr4Moderate
May6High
Jun7High
Jul8Very high
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Aalen?

Aalen sits at 48.8°N, 10.1°E, 433 m above sea level, in Germany. The nearest listed city is Ellwangen, 14 km away.

Topography around Aalen

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

Within 3 km, the terrain around Aalen has significant variations in elevation — a maximum elevation change of 314 m around an average of 494 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 432 m; within 80 km, large variations in elevation — a maximum elevation change of 743 m.

The land around Aalen is covered by trees (44%), artificial surfaces (28%) and grassland (21%) within 3 km, trees (51%) and grassland (25%) within 16 km, and trees (40%) and cropland (34%) within 80 km.

3 km
314 m
16 km
432 m
80 km
743 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Ellwangen 14 km · Heidenheim an der Brenz 18 km · Schwäbisch Gmünd 22 km · Giengen an der Brenz 26 km · Nördlingen 29 km · Geislingen an der Steige 31 km · Eislingen 32 km · Crailsheim 33 km

Germany travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 80% of US
price level, 2025
GDP per capita
$60,496
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.9
per 100k, 2023
Road deaths
3.8
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 615
Religion
none 44%Roman Catholic 25%Protestant 23%other 5%

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 Aalen (48.8378°, 10.0933°, elevation 433 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).