Annual mean 12°C · wettest around January · prevailing wind SW
Warmest
23.4 °C
Coldest
3.5 °C
Wettest
49%
Windiest
5.4 m/s
Prevailing
SW
4.2 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Mettmann over the whole year is 12°C. August is the hottest month, with highs of about 23°C; January is the coldest, with lows of about 3°C. Mettmann has no sharply defined rainy season: the chance of rain on a given day runs from 26% in May, the driest month, to 42% in January, the wettest. Winds in Mettmann are highest in February, averaging 4.3 m/s (15 km/h), and lightest in September, at 2.8 m/s (10 km/h). The prevailing wind is from the SW. The clearest skies in Mettmann come in August, when the sky is typically 55% covered; January is the cloudiest month, at 78%.
Month by month Mettmann climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
5°C
3°C
-0°C
42%
78%
4.1 m/s
0
0
9
February
7°C
3°C
2°C
40%
69%
4.3 m/s
1
0
18
March
10°C
4°C
5°C
36%
66%
3.7 m/s
4
0
35
April
13°C
6°C
8°C
28%
59%
3.3 m/s
17
1
53
May
18°C
11°C
15°C
26%
55%
3.1 m/s
48
4
74
June
22°C
16°C
20°C
27%
55%
3.0 m/s
71
21
63
July
23°C
16°C
20°C
27%
59%
3.0 m/s
77
16
66
August
23°C
16°C
21°C
27%
55%
2.9 m/s
72
25
58
September
20°C
12°C
18°C
30%
55%
2.8 m/s
62
11
72
October
15°C
10°C
12°C
34%
63%
3.4 m/s
27
0
74
November
9°C
6°C
5°C
37%
70%
3.5 m/s
1
0
36
December
6°C
4°C
2°C
42%
78%
4.0 m/s
1
1
15
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Mettmann weather by season
Year round, Mettmann has days of about 5°C at their warmest in January, its coolest month, and 23°C in August, its warmest; the coolest hours of the day run from 3°C to 16°C through the year, and the average temperature over the year is 12°C around the clock. Rain is most likely around January and least likely around May. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Mettmann weather in winterDecember to February
High 6°CLow 3°CRain 41%
Winter in Mettmann has typical daily highs of about 6°C and lows of about 3°C, with a 41% chance of rain on a given day.
Mettmann weather in springMarch to May
High 14°CLow 7°CRain 30%
Spring in Mettmann has typical daily highs of about 14°C and lows of about 7°C, with a 30% chance of rain on a given day.
Mettmann weather in summerJune to August
High 22°CLow 16°CRain 27%
Summer in Mettmann has typical daily highs of about 22°C and lows of about 16°C, with a 27% chance of rain on a given day.
Mettmann weather in autumnSeptember to November
High 14°CLow 9°CRain 34%
Autumn in Mettmann has typical daily highs of about 14°C and lows of about 9°C, with a 34% chance of rain on a given day.
When is the rainy season in Mettmann?
Mettmann has no sharply defined rainy season: the chance of rain on a given day runs from 26% in May, the driest month, to 42% in January, the wettest.
What time of year is Mettmann windiest?
Winds in Mettmann are highest in February, averaging 4.3 m/s (15 km/h), and lightest in September, at 2.8 m/s (10 km/h). The prevailing wind is from the SW.
What is the average temperature in Mettmann year round?
The average temperature in Mettmann over the whole year is 12°C. August is the hottest month, with highs of about 23°C; January is the coldest, with lows of about 3°C.