Mechernich weather in December

In December, Mechernich sees average daytime highs of 4°C and overnight lows near 0°C, with 71 mm of precipitation across 14.1 wet days and about 7.8 hours of daylight. It is the 11th-warmest and 5th-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 11% 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 48 min by month's end. Set against the rest of the year, December is Mechernich's 12th-clearest and 2nd-windiest month. For the whole year in context, see Mechernich's year-round climate.

Daytime high
11th warmest
Overnight low
3rd coldest
Precipitation
71 mm
14.1 wet days
Daylight
7 h 48 min
8:36 AM – 4:23 PM
Cloud cover
78%
12th clearest
Wind
17 km/h
2nd windiest
Solar energy
0.65 kWh/m²
Travel score
0.0
out of 10

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 Mechernich 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 9°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
151
251
351
451
551
641
741
841
941
1041
1141
1241
1340
1440
1540
1640
1740
1840
1940
2040
2140
2240
2340
2440
2540
2640
2740
2840
2940
3040
3140

How December really feels in Mechernich

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.

Mechernich 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 / -1°61135.38.30.0
Feb / -1°5511.75.79.70.0
Mar / 6213.33.711.51.3
Apr12° / 5612.2113.53.1
May16° / 7413.80.115.24.6
Jun19° / 11°8413.5016.25.5
Jul21° / 13°8814.2015.85.9
Aug21° / 13°8513.5014.35.9
Sep17° / 10°6310.9012.45.2
Oct12° / 6112.10.210.43.1
Nov / 6112.628.70.9
Dec / 7114.157.80.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12080
22080
32080
42080
52179
62278
72278
82278
92278
102278
112278
122179
132278
142278
152179
162179
172179
182080
192080
201882
211882
221882
231882
241882
251981
261882
271882
281981
291981
301981
311981

Chance of precipitation in December

Any precipitationSnow

Mechernich gets around 71 mm of rain and snow over 14.1 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 45% and peaks near 46% on the wettest days, and about 5 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14312
24312
34312
44313
54413
64413
74414
84414
94414
104415
114415
124515
134516
144516
154517
164617
174617
184618
194618
204618
214618
224618
234618
244618
254618
264618
274617
284617
294616
304616
314615

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 17 km/h in December.

Across December, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 06 min at the start of December to 7 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 8:20 AM to 8:42 AM, and sunset from 4:26 PM to 4:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.18:204:26
28.18:224:25
38.08:234:25
48.08:244:24
58.08:254:24
68.08:274:24
77.98:284:23
87.98:294:23
97.98:304:23
107.98:314:23
117.88:324:23
127.88:334:23
137.88:344:23
147.88:354:23
157.88:354:23
167.88:364:23
177.88:374:23
187.88:384:23
197.88:384:24
207.88:394:24
217.88:394:25
227.88:404:25
237.88:404:25
247.88:414:26
257.88:414:27
267.88:414:27
277.88:424:28
287.88:424:29
297.88:424:29
307.88:424:30
317.88:424:31

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.65 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.65 kWh/m² to a high of 5.36 kWh/m² in June across the year — December's 0.65 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.8Dim
20.8Dim
30.7Dim
40.7Dim
50.7Dim
60.7Dim
70.7Dim
80.7Dim
90.7Dim
100.7Dim
110.7Dim
120.7Dim
130.7Dim
140.7Dim
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
310.7Dim
Planning a trip in December

Is December a good time to visit Mechernich?

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 Mechernich.

What to pack for Mechernich in December

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

In December, Mechernich sees daytime highs around 4°C and nights near 0°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 Mechernich 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 Mechernich peaks around July 15 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 15UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Mechernich in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Mechernich is worst in April — around 16 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1316 µg/m³Nov 2310 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb12Good
Mar15Moderate
Apr16Moderate
May14Moderate
Jun14Moderate
Jul12Good
Aug13Moderate
Sep12Moderate
Oct11Good
Nov10Good
Dec10Good
Location & terrain

Where is Mechernich?

Mechernich sits at 50.6°N, 6.7°E, 301 m above sea level, in Germany. The nearest listed city is Zülpich, 11 km away.

Topography around Mechernich

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

Within 3 km, the terrain around Mechernich has only modest variations in elevation — a maximum elevation change of 230 m around an average of 319 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 485 m; within 80 km, large variations in elevation — a maximum elevation change of 1,018 m.

The land around Mechernich is covered by trees (54%) within 3 km, trees (42%), cropland (31%) and grassland (21%) within 16 km, and trees (48%), grassland (23%) and cropland (21%) within 80 km.

3 km
230 m
16 km
485 m
80 km
1,018 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Zülpich 11 km · Euskirchen 12 km · Rheinbach 21 km · Weilerswist 22 km · Düren 26 km · Erftstadt 27 km · Meckenheim 27 km · Alfter 30 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 Mechernich (50.593°, 6.6522°, elevation 301 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).