Annual mean 11°C · wettest around January · prevailing wind SW
Warmest
22.5 °C
Coldest
3.3 °C
Wettest
76%
Windiest
5.2 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 Gronau over the whole year is 11°C. August is the hottest month, with highs of about 22°C; January is the coldest, with lows of about 2°C. The rainy (wet) season in Gronau runs from November to March, peaking in January with a 69% chance of rain on a given day. The dry season is April to October; August is the driest month, at 36%. Winds in Gronau are highest in February, averaging 4.2 m/s (15 km/h), and lightest in September, at 2.5 m/s (9 km/h). The prevailing wind is from the SW. The clearest skies in Gronau come in August, when the sky is typically 63% covered; December is the cloudiest month, at 82%.
Month by month Gronau 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
2°C
-0°C
69%
81%
3.9 m/s
0
0
6
February
7°C
3°C
2°C
63%
72%
4.2 m/s
0
0
16
March
9°C
4°C
5°C
59%
71%
3.6 m/s
3
0
32
April
13°C
6°C
8°C
48%
64%
3.3 m/s
14
0
55
May
18°C
11°C
15°C
39%
64%
3.2 m/s
47
4
74
June
21°C
15°C
19°C
37%
65%
3.0 m/s
70
17
65
July
22°C
15°C
20°C
39%
67%
2.9 m/s
74
15
65
August
22°C
15°C
21°C
36%
63%
2.7 m/s
74
19
61
September
19°C
12°C
17°C
40%
64%
2.5 m/s
61
10
73
October
14°C
10°C
11°C
52%
73%
3.2 m/s
21
0
72
November
8°C
6°C
5°C
62%
76%
3.3 m/s
1
0
34
December
6°C
4°C
2°C
63%
82%
3.8 m/s
0
0
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 Gronau weather by season
Year round, Gronau has days of about 4°C at their warmest in January, its coolest month, and 22°C in August, its warmest; the coolest hours of the day run from 2°C to 15°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 August. 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.
Gronau weather in winterDecember to February
High 6°CLow 3°CRain 65%
Winter in Gronau has typical daily highs of about 6°C and lows of about 3°C, with a 65% chance of rain on a given day.
Gronau weather in springMarch to May
High 13°CLow 7°CRain 48%
Spring in Gronau has typical daily highs of about 13°C and lows of about 7°C, with a 48% chance of rain on a given day.
Gronau weather in summerJune to August
High 22°CLow 15°CRain 37%
Summer in Gronau has typical daily highs of about 22°C and lows of about 15°C, with a 37% chance of rain on a given day.
Gronau weather in autumnSeptember to November
High 14°CLow 9°CRain 51%
Autumn in Gronau has typical daily highs of about 14°C and lows of about 9°C, with a 51% chance of rain on a given day.
When is the rainy season in Gronau?
The rainy (wet) season in Gronau runs from November to March, peaking in January with a 69% chance of rain on a given day. The dry season is April to October; August is the driest month, at 36%.
What time of year is Gronau windiest?
Winds in Gronau are highest in February, averaging 4.2 m/s (15 km/h), and lightest in September, at 2.5 m/s (9 km/h). The prevailing wind is from the SW.
What is the average temperature in Gronau year round?
The average temperature in Gronau over the whole year is 11°C. August is the hottest month, with highs of about 22°C; January is the coldest, with lows of about 2°C.