Measurements:
°C
°F
South Haven
56°F
N 17 mph
Feels like: 50°F
Precip: 0%
World Resorts USA South Haven Weather

South Haven Sea Water Temperature

Current Sea Water Temperature:
+40.0°F
Maximum Sea Water Temperature in January: 43.0°F
Minimum Sea Water Temperature in January: 33.8°F
Average water temperature in January: 37.6°F

Sea Water Temperature for the Last 10 Days:

January 08 40.0°F January 03 39.4°F
January 07 39.2°F January 02 39.2°F
January 06 39.0°F January 01 39.4°F
January 05 39.8°F December 31 39.2°F
January 04 39.6°F December 30 39.2°F

When is the Warmest Sea for South Haven?

According to our data for the last three years for South Haven the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for South Haven was 74.3°F. The maximum and minimum values were 67.2°F and 80.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for South Haven was 77.7°F. The maximum and minimum values were 75.6°F and 81.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for South Haven was 70.5°F. The maximum and minimum values were 68.0°F and 72.2°F respectively.

Best Time to Visit South Haven
The most sunny months:
September 16 days
August 15 days
July 14 days
The most warm months:
July 79.6 °F
August 79.6 °F
September 74.8 °F
Warmest sea temperature:
August 74.5 °F
July 74.3 °F
September 71.2 °F
The most cold months:
January 27.5 °F
February 28.6 °F
December 34.3 °F
The most rainy months:
July 3 days
May 3 days
June 2 days
The most windy months:
November 13 mph
December 12 mph
March 12 mph

South Haven on the Weather Map

USA Resorts:
NAME
Chicago +54
Hawaii +78
Honolulu +78
Houston +78
Las Vegas +54
Los Angeles +58
Maui +72
Miami +86
Miami Beach +80
New York +52
San Diego +64
San Francisco +52
Sarasota +82
Tampa +88
Washington +60
24 Hours Weather Forecast
South Haven
Local time: 15:30
08 jan, thursday
1800 48°F
NW
16 mph
2100 42°F
N
22 mph
09 jan, friday
0000 46°F
N
28 mph
0300 50°F
N
19 mph
0600 52°F
NE
19 mph
0900 54°F
E
14 mph
1200 46°F
SE
11 mph
1500 38°F
SE
14 mph