Annual mean 11°C · wettest around January · prevailing wind SW
Warmest
23.0 °C
Coldest
3.0 °C
Wettest
56%
Windiest
5.5 m/s
Prevailing
SW
4.3 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 Herdecke over the whole year is 11°C. August is the hottest month, with highs of about 23°C; January is the coldest, with lows of about 3°C. Herdecke has no sharply defined rainy season: the chance of rain on a given day runs from 28% in June, the driest month, to 49% in January, the wettest. Winds in Herdecke are highest in February, averaging 4.6 m/s (17 km/h), and lightest in May, at 3.1 m/s (11 km/h). The prevailing wind is from the SW. The clearest skies in Herdecke come in September, when the sky is typically 50% covered; January is the cloudiest month, at 79%.
Month by month Herdecke 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
4°C
3°C
-1°C
49%
79%
4.4 m/s
0
0
6
February
7°C
3°C
1°C
45%
66%
4.6 m/s
1
0
15
March
9°C
4°C
4°C
41%
63%
4.0 m/s
3
0
31
April
13°C
6°C
8°C
32%
53%
3.5 m/s
15
0
53
May
17°C
11°C
14°C
29%
50%
3.1 m/s
44
4
75
June
22°C
15°C
19°C
28%
51%
3.1 m/s
69
17
65
July
22°C
16°C
20°C
29%
53%
3.1 m/s
74
15
67
August
23°C
16°C
21°C
28%
50%
3.1 m/s
72
23
60
September
19°C
12°C
17°C
31%
50%
3.1 m/s
57
10
73
October
14°C
10°C
11°C
38%
58%
3.8 m/s
21
0
71
November
9°C
6°C
4°C
44%
67%
3.9 m/s
1
0
33
December
6°C
4°C
2°C
46%
78%
4.4 m/s
1
1
12
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 Herdecke weather by season
Year round, Herdecke has days of about 4°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 11°C around the clock. Rain is most likely around January and least likely around June. 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.
Herdecke weather in winterDecember to February
High 6°CLow 3°CRain 46%
Winter in Herdecke has typical daily highs of about 6°C and lows of about 3°C, with a 46% chance of rain on a given day.
Herdecke weather in springMarch to May
High 13°CLow 7°CRain 34%
Spring in Herdecke has typical daily highs of about 13°C and lows of about 7°C, with a 34% chance of rain on a given day.
Herdecke weather in summerJune to August
High 22°CLow 16°CRain 28%
Summer in Herdecke has typical daily highs of about 22°C and lows of about 16°C, with a 28% chance of rain on a given day.
Herdecke weather in autumnSeptember to November
High 14°CLow 9°CRain 38%
Autumn in Herdecke has typical daily highs of about 14°C and lows of about 9°C, with a 38% chance of rain on a given day.
When is the rainy season in Herdecke?
Herdecke has no sharply defined rainy season: the chance of rain on a given day runs from 28% in June, the driest month, to 49% in January, the wettest.
What time of year is Herdecke windiest?
Winds in Herdecke are highest in February, averaging 4.6 m/s (17 km/h), and lightest in May, at 3.1 m/s (11 km/h). The prevailing wind is from the SW.
What is the average temperature in Herdecke year round?
The average temperature in Herdecke over the whole year is 11°C. August is the hottest month, with highs of about 23°C; January is the coldest, with lows of about 3°C.