Koblenz weather in December

In December, Koblenz sees average daytime highs of 4°C and overnight lows near 1°C, with 64 mm of precipitation across 13.3 wet days and about 7.9 hours of daylight. It is the 11th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 4°C through the month. The sky is clear or mostly clear about 9% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 06 min at the start of December to 7 h 54 min by month's end. Set against the rest of the year, December is Koblenz's 12th-clearest and 2nd-windiest month. For the whole year in context, see Koblenz's year-round climate.

Daytime high
11th warmest
Overnight low
3rd coldest
Precipitation
64 mm
13.3 wet days
Daylight
7 h 48 min
8:31 AM – 4:20 PM
Cloud cover
80%
12th clearest
Wind
13 km/h
2nd windiest
Solar energy
0.64 kWh/m²
Travel score
0.0
out of 10

Koblenz is German city on the banks of the Rhine and of the Moselle.

Air quality
Moderate
PM2.5 10.9 µg/m³ · 2019
Density
1,020/km²
people per km²

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 4°C through the month.

A typical December day in Koblenz reaches about 4°C in the afternoon and slips back to 1°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 10°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
151
251
351
451
551
651
751
851
951
1051
1151
1241
1341
1441
1541
1641
1741
1840
1940
2040
2140
2240
2340
2440
2540
2640
2740
2840
2940
3040
3140

How December really feels in Koblenz

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.

Koblenz weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°5111.53.58.30.0
Feb / -0°4310.23.89.70.1
Mar / 5211.81.711.51.8
Apr14° / 4610.40.513.53.8
May18° / 6011.1015.25.4
Jun21° / 12°5911.1016.16.1
Jul23° / 14°6212015.76.5
Aug23° / 13°5910.8014.36.6
Sep18° / 10°559.5012.45.8
Oct13° / 5411.2010.53.5
Nov / 5511.71.18.81.1
Dec / 6413.33.97.90.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of December, with mostly cloudy or overcast conditions the remaining 81%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11981
21882
31882
42080
52080
62080
72080
82179
92278
102278
112278
122278
132278
142179
152179
162080
172080
182080
191981
201981
211981
221882
231882
241882
251882
261882
271882
281783
291783
301783
311783

Chance of precipitation in December

Any precipitationSnow

Koblenz gets around 64 mm of rain and snow over 13.3 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 43% and peaks near 46% on the wettest days, and about 4 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1378
2388
3388
4398
5399
6399
7409
8409
94110
104110
114211
124211
134312
144312
154413
164413
174513
184514
194514
204614
214615
224615
234515
244515
254515
264515
274414
284414
294313
304313
314212

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 13 km/h in December.

Across December, daily wind ranges from about 12 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
112light breeze
212light breeze
312light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light 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
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 06 min at the start of December to 7 h 54 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 8:16 AM to 8:37 AM, and sunset from 4:23 PM to 4:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.18:164:23
28.18:174:23
38.18:184:22
48.08:194:22
58.08:214:21
68.08:224:21
78.08:234:21
87.98:244:21
97.98:254:20
107.98:264:20
117.98:274:20
127.98:284:20
137.98:294:20
147.88:304:20
157.88:304:20
167.88:314:20
177.88:324:21
187.88:334:21
197.88:334:21
207.88:344:22
217.88:344:22
227.88:354:22
237.88:354:23
247.88:364:23
257.88:364:24
267.88:364:25
277.88:374:25
287.88:374:26
297.88:374:27
307.88:374:28
317.98:374:29

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.64 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.64 kWh/m² to a high of 5.44 kWh/m² in June across the year — December's 0.64 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.8Dim
20.7Dim
30.7Dim
40.7Dim
50.7Dim
60.7Dim
70.7Dim
80.7Dim
90.7Dim
100.7Dim
110.7Dim
120.7Dim
130.7Dim
140.6Dim
150.6Dim
160.6Dim
170.6Dim
180.6Dim
190.6Dim
200.6Dim
210.6Dim
220.6Dim
230.6Dim
240.6Dim
250.6Dim
260.6Dim
270.6Dim
280.6Dim
290.6Dim
300.6Dim
310.6Dim
Planning a trip in December

Is December a good time to visit Koblenz?

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

0.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Koblenz.

What to pack for Koblenz in December

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

In December, Koblenz sees daytime highs around 4°C and nights near 1°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 13 days see rain.

a warm layera heavy coatrain gear

UV index in Koblenz 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 Koblenz peaks around July 14 at about 7 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 14UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Koblenz?

Koblenz sits at 50.4°N, 7.6°E, 75 m above sea level, in Germany. The nearest listed city is Lahnstein, 7.0 km away.

Topography around Koblenz

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

Within 3 km, the terrain around Koblenz has only modest variations in elevation — a maximum elevation change of 163 m around an average of 105 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 510 m; within 80 km, large variations in elevation — a maximum elevation change of 850 m.

The land around Koblenz is covered by trees (41%) and artificial surfaces (36%) within 3 km, trees (57%) within 16 km, and trees (56%) and grassland (20%) within 80 km.

3 km
163 m
16 km
510 m
80 km
850 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Lahnstein 7.0 km · Bendorf 8.0 km · Neuwied 12 km · Boppard 14 km · Andernach 15 km · Mayen 25 km · Sinzig 32 km · Limburg an der Lahn 34 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 Koblenz (50.3536°, 7.5788°, elevation 75 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).