Annual mean 10°C · wettest around August · prevailing wind W
Warmest
25.1 °C
Coldest
-2.3 °C
Wettest
29%
Windiest
6.3 m/s
Prevailing
W
5.2 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Grand Haven over the whole year is 10°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -3°C. Grand Haven has no sharply defined rainy season: the chance of rain on a given day runs from 13% in September, the driest month, to 21% in August, the wettest. Winds in Grand Haven are highest in December, averaging 5.2 m/s (19 km/h), and lightest in July, at 3.3 m/s (12 km/h). The prevailing wind is from the W. The clearest skies in Grand Haven come in July, when the sky is typically 43% covered; January is the cloudiest month, at 85%.
Month by month Grand Haven 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
-2°C
-3°C
-8°C
19%
85%
4.8 m/s
0
0
1
February
-0°C
-3°C
-7°C
16%
71%
5.0 m/s
0
0
3
March
5°C
0°C
-2°C
17%
62%
4.9 m/s
1
0
11
April
10°C
5°C
4°C
17%
60%
4.8 m/s
9
0
33
May
17°C
11°C
13°C
15%
51%
4.0 m/s
38
7
64
June
22°C
17°C
20°C
20%
45%
3.8 m/s
67
23
60
July
25°C
20°C
25°C
20%
43%
3.3 m/s
71
47
35
August
24°C
19°C
24°C
21%
44%
3.3 m/s
72
44
39
September
21°C
15°C
20°C
13%
47%
3.5 m/s
70
19
65
October
14°C
10°C
10°C
19%
62%
4.4 m/s
28
2
58
November
7°C
4°C
1°C
17%
69%
5.1 m/s
3
0
19
December
2°C
0°C
-5°C
18%
82%
5.2 m/s
0
0
3
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 Grand Haven weather by season
Year round, Grand Haven has days of about -2°C at their warmest in January, its coolest month, and 25°C in July, its warmest; the coolest hours of the day run from -3°C to 20°C through the year, and the average temperature over the year is 10°C around the clock. Rain is most likely around August and least likely around September. 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.
Grand Haven weather in winterDecember to February
High -0°CLow -2°CRain 18%
Winter in Grand Haven has typical daily highs of about -0°C and lows of about -2°C, with a 18% chance of rain on a given day.
Grand Haven weather in springMarch to May
High 10°CLow 6°CRain 16%
Spring in Grand Haven has typical daily highs of about 10°C and lows of about 6°C, with a 16% chance of rain on a given day.
Grand Haven weather in summerJune to August
High 24°CLow 19°CRain 20%
Summer in Grand Haven has typical daily highs of about 24°C and lows of about 19°C, with a 20% chance of rain on a given day.
Grand Haven weather in autumnSeptember to November
High 14°CLow 10°CRain 16%
Autumn in Grand Haven has typical daily highs of about 14°C and lows of about 10°C, with a 16% chance of rain on a given day.
When is the rainy season in Grand Haven?
Grand Haven has no sharply defined rainy season: the chance of rain on a given day runs from 13% in September, the driest month, to 21% in August, the wettest.
What time of year is Grand Haven windiest?
Winds in Grand Haven are highest in December, averaging 5.2 m/s (19 km/h), and lightest in July, at 3.3 m/s (12 km/h). The prevailing wind is from the W.
What is the average temperature in Grand Haven year round?
The average temperature in Grand Haven over the whole year is 10°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -3°C.