World Resorts USA South Haven Weather

South Haven sea water temperature

Current sea water temperature:
+40.1°F
Minimum sea water temperature in January: 43.7°F
Maximum sea water temperature in January: 35.4°F
Average sea water temperature in January: 38.9°F

Sea water temperature for the last 10 days:

January 11 40.1°F January 6 40.1°F
January 10 40.3°F January 5 40.8°F
January 9 39.9°F January 4 40.6°F
January 8 41.0°F January 3 40.5°F
January 7 40.3°F January 2 40.3°F

When is the warmest sea in South Haven?

Based on the data about daily sea water temperature for the last three years the warmest sea in South Haven was noticed in August, July and September.

Monthly Sea Temperatures in South Haven, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 71.8°F. The highest and lowest sea temperatures during the month were 77.2°F and 65.5°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 74.9°F. The highest and lowest sea temperatures during the month were 77.9°F and 73.0°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 68.4°F. The highest and lowest sea temperatures during the month were 70.0°F and 66.2°F.

Best time for vacation in South Haven

Sunniest months:
September 16 days
August 15 days
July 14 days
Warmest months:
July 76.7 °F
August 76.7 °F
September 72.3 °F
Warmest sea temp:
August 72.0 °F
July 71.8 °F
September 69.0 °F
Coldest months:
January 29.7 °F
February 30.7 °F
December 35.9 °F
Rainiest months:
July 3 days
May 3 days
June 2 days
Windiest months:
November 13.5 mph
December 12.8 mph
March 12.5 mph

South Haven on a weather map

South Haven
+32°F
E 14 mph
Feels like: +23°F
Precip.: 0%
Places in USA:
Name
°F
+34°F
+75°F
+75°F
+59°F
+72°F
+73°F
+77°F
+68°F
+32°F
+68°F
+55°F
+64°F
+63°F
+52°F
+30°F
24 Hours Forecast
South Haven
Local time: 22:13
January 12, monday
0000
32°F
NE
17 mph
0300
32°F
NE
21 mph
0600
32°F
NE
22 mph
0900
32°F
E
22 mph
1200
34°F
E
17 mph
1500
39°F
NE
17 mph
1800
39°F
NE
14 mph
2100
34°F
NE
14 mph
Units of measurement: °C / °F