Climate and monthly weather forecastSouth Haven, MI
Climate and monthly weather forecast
The climate of South Haven
South Haven, Michigan finds itself located within the Köppen climate classification Dfa, more commonly known as Humid Continental. This climate type is characterized by no dry season and hot summers. South Haven experiences significant seasonal variations in weather patterns throughout the year. The average high temperatures range from 29.7°F (-1.3°C) in January to 76.6°F (24.8°C) in July, while the low temperatures fluctuate between 21.9°F (-5.6°C) in January and 64.4°F (18°C) in July. Humidity follows a fairly steady trend, with relative humidity percentages in the upper 70s to low 80s, reaching 84% in January and settling around the lower 80s during summer and autumn.Analysing the rainfall data reveals that South Haven endures a rather evenly distributed rainfall system, with the volume of rainfall spanning 1.38" (35mm) in February to 2.99" (76mm) in October. The number of snowfall days descends sharply from winter to spring, ranging from 17.3 days in January to zero occurrences in June through September. South Haven basks in longer daylight hours from May to August, peaking at 15.2 hours. Interestingly, this period of increased daylight coincides with the highest average sunshine hours, with June and July offering up to 10.7 hours of sunshine.
The wind speed stays at upper end during colder months, reaching 12.7mph (20.4km/h) in January and recedes to a lower count of 7.6mph (12.2km/h) in July. The months of May through August feature fewer cloud coverages while the pressure remains above 29.92" (760mm) throughout the year, with a peak of 30.09" (764mm) in January, March, and November.
The best time to visit South Haven
Taking a complete look at South Haven's weather profile, the period from June to August serves as the most suitable months to explore this city. With an average high temperature from 70.5°F (21.4°C) to 76.6°F (24.8°C), these months promise comfortable weather for outdoor activities. The relative humidity during this time falls at a comfortable range, coupled with proportionately reduced rainfall. Furthermore, tourism might greatly benefit from the peak hours of sunshine and daylight recorded during these months. The wind conditions remain calm and tranquil enhancing the overall experience.The worst time to visit South Haven
On the contrary, the colder months (November to February) might not be the best time to visit South Haven. During this time, the city experiences low temperatures, ranging from 29.3°F (-1.5°C) to 37°F (2.8°C), alongside high wind speeds of over 12mph (19.3km/h). Also, the city faces increased snowfall, particularly in January and February, with 13.3 and 17.3 snowfall days respectively. These challenging conditions might disrupt travel and outdoor activities.Spring weather in South Haven
The spring months in South Haven, consisting of March, April, and May, manifest an incremental rise in temperatures. Starting from 41°F (5°C) in March, the high temperature soars to a pleasant 61.5°F (16.4°C) in May. This warming up of temperatures is complemented by a visible decline in snowfall from 1.46" (37mm) in March to 0.12" (3mm) in May. Also, the daylight hours increase, making way for additional sunshine and significantly reducing cloud cover.Summer weather in South Haven
South Haven enjoys a warm summer from June to August, with high temperatures persisting between 70.5°F (21.4°C) and 76.6°F (24.8°C). The summer period is marked by zero snowfall days, thus making way for the comfort of travelers. The extended daylight hours, reaching a maximum of 15.2 hours in June, coupled with maximum sunshine hours contribute to the overall pleasant ambiance of summer in South Haven.Autumn weather in South Haven
The arrival of autumn in South Haven brings about a noticeable drop in temperatures, with highs sliding from 70.7°F (21.5°C) in September to 45.7°F (7.6°C) in November. Despite the escalating rainfall in October, the humidity and wind speed maintain a steady lower range. However, the city receives an ample amount of sunshine ensuring the charm of South Haven remains undiminished.Winter weather in South Haven
Capturing the charm of a winter wonderland, South Haven is met with low temperatures in the winter months of December through February. Highs hovering from 35.4°F (1.9°C) to 31.6°F (-0.2°C) and lows dipping between 29.3°F (-1.5°C) and 23.4°F (-4.8°C) shape the winter landscape of the city. Despite the higher wind conditions and snowfall during these months, the city manages to retain a consistent pressure level, adding to the crisp winter experience of South Haven.Weather in January
January begins the year in South Haven, Michigan with chilly temperatures and considerable moisture. The winter season is evident as colder weather reigns, bringing potential snowfall. High humidity of 84%, along with 1.69" (43mm) of rainfall, leads to a fair number of damp days. Weather in January »Weather in February
February follows January's cold trend but with a slight rise in temperature bringing a longer daylight duration. A natural winter aspect, snowfall continues its reign, with the landscape blanketed in white. The month witnesses a decrease in overall cloud cover, allowing more sunshine to seep through. Weather in February »Weather in March
March signifies the transition phase from winter to spring in South Haven. The conditions start to warm up gradually, and snowfall decreases, enhancing outdoor activities. Notable is the significant increase in sunshine hours, reaching 6 hours per day on average, which boosts the city's aesthetics. Weather in March »Weather in April
April marks the true arrival of spring in South Haven, Michigan. Thetemperatures rise, with average highs of 50.7°F (10.4°C), creating pleasant outdoor conditions. Nature reveals its colors as the greening vegetation matches the progressively sunny scenery. Weather in April »Weather in May
May in South Haven presents a refreshing spring atmosphere with warmer temperatures. The foliage is in full bloom, adding to the natural beauty of the city. While the possibility of rain persists, the increased sunshine duration encourages outdoor leisure activities. Weather in May »Weather in June
As summer arrives in South Haven, June displays a drastic transformation in weather conditions. The raise in maximum daily temperatures to 70.5°F (21.4°C) elicits summer's arrival in the city. Longer daylight hours provide excellent opportunities for picnics, beach outings, and neighbourhood strolls. Weather in June »Weather in July
July materializes as the warmest month in South Haven, with average high temperatures peaking at 76.6°F (24.8°C). This month celebrates summer at its best, with people flocking to the beaches to escape the heat. One can enjoy the peak of outdoor activities thanks to the lengthy daylight hours. Weather in July »Weather in August
August maintains the summer spirit reflected to July. Although the temperature slightly drops, it remains virtually identical, with an average high of 76.3°F (24.6°C). The sun continues to shine brightly, providing ideal weather for water-related activities. Weather in August »Weather in September
September signals the commencement of the fall season in South Haven. The weather begins to cool down, providing relief from the summer heat. Despite the temperature drop, average sunshine hours remain pretty high, keeping the mood uplifting and cheerful. Weather in September »Weather in October
October continues the path of decreasing temperatures in South Haven, indicating the impending arrival of winter. The month is marked by shorter days and longer nights, preparing locals for the colder months. October's highlight is its fall foliage, which provides a magnificent view of vibrant red, orange, and gold hues. Weather in October »Weather in November
November welcomes late fall's onset with shorter days and significantly colder nights. The temperature drops further, signalling the imminent winter arrival. The fall foliage slowly fades, leaving a bare, yet beautiful landscape behind. Weather in November »Weather in December
December marks the beginning of winter in South Haven with average highs descending to 35.4°F (1.9°C). As the final month of the year, it embraces the cold weather, ushering in the holiday season. Snowfall makes its way back into the city's weather pattern, resulting in a frosty, wintery outlook. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
South Haven, MI
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (29.7°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure
South Haven, MI
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.08"Hg
The months with the highest atmospheric pressure are January, March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
South Haven, MI
- Average wind speed in January:
12.7mph - Average wind speed in February:
12.1mph - Average wind speed in March:
11.1mph - Average wind speed in April:
11.2mph - Average wind speed in May:
9.4mph - Average wind speed in June:
8.3mph
- Average wind speed in July:
7.6mph - Average wind speed in August:
7.9mph - Average wind speed in September:
9.3mph - Average wind speed in October:
11.4mph - Average wind speed in November:
12.4mph - Average wind speed in December:
12.2mph
The windiest month (with the highest average wind speed) is January (12.7mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity
South Haven, MI
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall
South Haven, MI
- Average rainfall in January:
1.69" - Average rainfall in February:
1.38" - Average rainfall in March:
1.5" - Average rainfall in April:
2.32" - Average rainfall in May:
2.87" - Average rainfall in June:
2.76"
- Average rainfall in July:
2.05" - Average rainfall in August:
2.17" - Average rainfall in September:
1.97" - Average rainfall in October:
2.99" - Average rainfall in November:
1.57" - Average rainfall in December:
1.54"
The wettest month (with the highest rainfall) is October (2.99").
The driest month (with the least rainfall) is February (1.38").
Average rainfall days
South Haven, MI
- Average rainfall days in January:
7.6 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
11.4 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
16.4 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
15.7 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
14.5 days - Average rainfall days in October:
16.8 days - Average rainfall days in November:
12.1 days - Average rainfall days in December:
9.5 days
The month with the highest number of rainy days is October (16.8 days).
The month with the least rainy days is February (5.8 days).
Average snowfall
South Haven, MI
- Average snowfall in January:
3.98" - Average snowfall in February:
3.31" - Average snowfall in March:
1.46" - Average snowfall in April:
1.06" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is January (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
South Haven, MI
- Average snowfall days in January:
17.3 days - Average snowfall days in February:
13.3 days - Average snowfall days in March:
6.9 days - Average snowfall days in April:
2.4 days - Average snowfall days in May:
0.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.3 days - Average snowfall days in November:
6.6 days - Average snowfall days in December:
13.2 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
South Haven, MI
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
2h and 36min - Average sunshine in February:
3h and 54min - Average sunshine in March:
6h and 0min - Average sunshine in April:
6h and 54min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 42min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 24min - Average sunshine in October:
5h and 48min - Average sunshine in November:
4h and 24min - Average sunshine in December:
3h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days
South Haven, MI
- Average sunshine days in January:
6.3 days - Average sunshine days in February:
8.1 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
10.5 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
12 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
12.4 days - Average sunshine days in September:
12.5 days - Average sunshine days in October:
11.8 days - Average sunshine days in November:
11.6 days - Average sunshine days in December:
9.5 days
The months with the most sunshine days are March and July (12.8 days).
The month with the least sunshine days is January (6.3 days).
Average UV index
South Haven, MI
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
South Haven, MI
The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility
South Haven, MI
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).





