Current sea water temperature:
+34.9°F
| Minimum sea water temperature in March: | 40.8°F |
| Maximum sea water temperature in March: | 30.4°F |
| Average sea water temperature in March: | 35.6°F |
| more information | |
14 days
forecast
forecast
| South Haven |
monthly
weather
weather
| South Haven |
Sea water temperature for the last 10 days:
| March 18 | 34.9°F | March 13 | 34.0°F |
| March 17 | 35.1°F | March 12 | 33.4°F |
| March 16 | 35.4°F | March 11 | 34.3°F |
| March 15 | 35.8°F | March 10 | 34.3°F |
| March 14 | 34.0°F | March 9 | 33.6°F |
Monthly sea water temperature, °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.
current
weather
weather
| South Haven |
weather in
March
March
| South Haven |
Best time for vacation in South Haven
South Haven on a weather map
Places in USA:
Name
°F
24 Hours Forecast
South Haven
Local time: 17:35
March 18, wednesday
1800
36°F
NE
10 mph
10 mph
2100
32°F
NE
5 mph
5 mph
March 19, thursday
0000
30°F
E
6 mph
6 mph
0300
30°F
E
6 mph
6 mph
0600
32°F
E
6 mph
6 mph
0900
36°F
SE
1 mph
1 mph
1200
43°F
E
2 mph
2 mph
1500
48°F
SE
2 mph
2 mph
