Current sea water temperature:
+40.3°F
| Minimum sea water temperature in December: | 49.6°F |
| Maximum sea water temperature in December: | 38.5°F |
| Average sea water temperature in December: | 44.4°F |
| more information | |
14 days
forecast
forecast
| South Haven |
monthly
weather
weather
| South Haven |
Sea water temperature for the last 10 days:
| December 30 | 40.3°F | December 25 | 41.4°F |
| December 29 | 40.1°F | December 24 | 41.0°F |
| December 28 | 39.9°F | December 23 | 41.5°F |
| December 27 | 40.6°F | December 22 | 42.3°F |
| December 26 | 41.2°F | December 21 | 42.8°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
January
January
| 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: 18:24
December 30, tuesday
2100
28°F
E
24 mph
24 mph
December 31, wednesday
0000
30°F
E
22 mph
22 mph
0300
32°F
SE
22 mph
22 mph
0600
32°F
SE
21 mph
21 mph
0900
32°F
SE
20 mph
20 mph
1200
30°F
SE
22 mph
22 mph
1500
27°F
SE
23 mph
23 mph
1800
23°F
SE
21 mph
21 mph
