Current sea water temperature:
+42.3°F
| Minimum sea water temperature in December: | 48.4°F |
| Maximum sea water temperature in December: | 36.7°F |
| Average sea water temperature in December: | 43.2°F |
| more information | |
14 days
forecast
forecast
| Michigan City |
monthly
weather
weather
| Michigan City |
Sea water temperature for the last 10 days:
| December 16 | 42.3°F | December 11 | 43.5°F |
| December 15 | 41.9°F | December 10 | 44.1°F |
| December 14 | 41.9°F | December 9 | 44.6°F |
| December 13 | 42.4°F | December 8 | 45.3°F |
| December 12 | 43.0°F | December 7 | 45.9°F |
Monthly sea water temperature, °F
When is the warmest sea in Michigan City?
Based on the data about daily sea water temperature for the last three years the warmest sea in Michigan City was noticed in August, July and September.
Monthly Sea Temperatures in Michigan City, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 74.5°F. The highest and lowest sea temperatures during the month were 77.5°F and 71.8°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 76.3°F. The highest and lowest sea temperatures during the month were 79.0°F and 74.1°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 68.8°F. The highest and lowest sea temperatures during the month were 72.0°F and 64.8°F.
current
weather
weather
| Michigan City |
weather in
December
December
| Michigan City |
Best time for vacation in Michigan City
Michigan City on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Michigan City
Local time: 08:10
December 16, tuesday
0900
18°F
N
14 mph
14 mph
1200
30°F
N
17 mph
17 mph
1500
36°F
NE
19 mph
19 mph
1800
36°F
NE
20 mph
20 mph
2100
34°F
NE
21 mph
21 mph
December 17, wednesday
0000
34°F
NE
21 mph
21 mph
0300
34°F
NE
19 mph
19 mph
0600
34°F
NE
17 mph
17 mph
