Mettmann weather in January

In January, Mettmann sees average daytime highs of 5°C and overnight lows near 1°C, with 98 mm of precipitation across 14.9 wet days and about 8.2 hours of daylight. It is the 12th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 5°C through the month. The sky is clear or mostly clear about 14% of the time in January, and the air most often feels dry.

Daylight stretches from about 7 h 42 min at the start of January to 8 h 48 min by month's end. Set against the rest of the year, January is Mettmann's 10th-clearest and 1st-windiest month. For the whole year in context, see Mettmann's year-round climate.

Daytime high
12th warmest
Overnight low
1st coldest
Precipitation
98 mm
14.9 wet days
Daylight
8 h 06 min
8:38 AM – 4:45 PM
Cloud cover
75%
10th clearest
Wind
16 km/h
1st windiest
Solar energy
0.79 kWh/m²
Travel score
0.0
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 5°C through the month.

A typical January day in Mettmann reaches about 5°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, January runs on par with December and about 1°C cooler than February.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
151
251
351
451
551
651
751
851
951
1051
1151
1251
1351
1451
1551
1651
1751
1851
1951
2051
2150
2250
2350
2450
2550
2650
2750
2850
2950
3050
3150

How January really feels in Mettmann

Once humidity and wind are folded in, January 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 January is cold — wind chill drags the overnight "feels like" below the raw low.

Mettmann weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 9814.93.38.20.0
Feb / 8013.33.79.60.3
Mar10° / 7913.81.811.51.9
Apr14° / 6011.60.213.53.9
May18° / 7212.6015.35.3
Jun21° / 12°8312.9016.35.8
Jul23° / 14°9814.5015.96.1
Aug22° / 14°9413.7014.46.1
Sep19° / 11°8012.2012.45.5
Oct14° / 8812.9010.43.6
Nov / 8814.30.98.71.4
Dec / 10616.13.57.70.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 10% of January, with mostly cloudy or overcast conditions the remaining 75%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22377
32476
42476
52476
62575
72674
82674
92674
102674
112773
122773
132773
142872
152674
162674
172674
182674
192575
202575
212575
222476
232476
242476
252377
262377
272377
282377
292476
302377
312476

Chance of precipitation in January

Any precipitationSnow

Mettmann gets around 98 mm of rain and snow over 14.9 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 48% and peaks near 53% on the wettest days, and about 3 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
15310
25310
3539
4529
5528
6518
7518
8507
9497
10497
11488
12488
13478
14479
15479
164710
174711
184711
194612
204712
214713
224713
234714
244714
254714
264715
274715
284715
294715
304715
314714

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January 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 January

Winds average 16 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light 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
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 7 h 42 min at the start of January to 8 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over January. Sunrise moves from 8:44 AM to 8:22 AM, and sunset from 4:27 PM to 5:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.78:444:27
27.78:444:28
37.88:434:29
47.88:434:30
57.88:434:31
67.88:434:32
77.88:434:33
87.98:424:34
97.98:424:36
107.98:414:37
118.08:414:38
128.08:404:40
138.08:404:41
148.18:394:42
158.18:384:44
168.18:384:45
178.28:374:47
188.28:364:48
198.28:354:50
208.38:344:51
218.38:334:53
228.48:324:54
238.48:314:56
248.58:304:58
258.58:294:59
268.58:285:01
278.68:275:02
288.68:255:04
298.78:245:06
308.78:235:08
318.88:225:09

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.79 kWh/m².

For context, solar energy here swings from a low near 0.6 kWh/m² to a high of 5.24 kWh/m² in June across the year — January's 0.79 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.6Dim
20.6Dim
30.6Dim
40.6Dim
50.7Dim
60.7Dim
70.7Dim
80.7Dim
90.7Dim
100.7Dim
110.7Dim
120.7Dim
130.7Dim
140.8Dim
150.8Dim
160.8Dim
170.8Dim
180.8Dim
190.8Dim
200.8Dim
210.9Dim
220.9Dim
230.9Dim
240.9Dim
250.9Dim
260.9Dim
271.0Dim
281.0Dim
291.0Dim
301.1Dim
311.1Dim
Planning a trip in January

Is January a good time to visit Mettmann?

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

0.0
Sightseeing
12th-best month of the year
0.0
Beach & pool
8th-best month of the year

January is a weaker month for outdoor sightseeing in Mettmann.

What to pack for Mettmann in January

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

In January, Mettmann sees daytime highs around 5°C and nights near 1°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 15 days see rain.

a warm layerrain geara heavy coat

UV index in Mettmann in January

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Mettmann peaks around July 12 at about 6 (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 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 12UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Mettmann in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Mettmann is worst in April — around 15 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1415 µg/m³Dec 109 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar14Moderate
Apr15Moderate
May13Moderate
Jun14Moderate
Jul12Good
Aug12Moderate
Sep12Good
Oct10Good
Nov9Good
Dec9Good
Location & terrain

Where is Mettmann?

Mettmann sits at 51.3°N, 7.0°E, 132 m above sea level, in Germany. The nearest listed city is Wülfrath, 6.0 km away.

Topography around Mettmann

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

Within 3 km, the terrain around Mettmann has only modest variations in elevation — a maximum elevation change of 200 m around an average of 148 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 365 m; within 80 km, large variations in elevation — a maximum elevation change of 958 m.

The land around Mettmann is covered by cropland (39%) and trees (32%) within 3 km, trees (51%) and artificial surfaces (21%) within 16 km, and trees (43%) and cropland (28%) within 80 km.

3 km
200 m
16 km
365 m
80 km
958 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Wülfrath 6.0 km · Erkrath 6.0 km · Haan 7.0 km · Heiligenhaus 8.0 km · Hilden 10 km · Ratingen 10 km · Velbert 11 km · Ohligs 11 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 Mettmann (51.2504°, 6.9754°, elevation 132 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).