Measurements:
°C
°F
Michigan City
46°F
E 29 mph
Feels like: 36°F
Precip: 0%
World Resorts USA Michigan City Weather

Michigan City Sea Water Temperature

Current Sea Water Temperature:
+34.4°F
Maximum Sea Water Temperature in March: 42.0°F
Minimum Sea Water Temperature in March: 31.0°F
Average water temperature in March: 35.0°F

Sea Water Temperature for the Last 10 Days:

March 13 34.4°F March 08 32.4°F
March 12 34.8°F March 07 31.6°F
March 11 34.0°F March 06 31.4°F
March 10 34.0°F March 05 32.0°F
March 09 33.0°F March 04 31.0°F

When is the Warmest Sea for Michigan City?

According to our data for the last three years for Michigan City 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 Michigan City was 77.3°F. The maximum and minimum values were 74.2°F and 80.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Michigan City was 79.3°F. The maximum and minimum values were 76.8°F and 82.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Michigan City was 70.8°F. The maximum and minimum values were 66.4°F and 74.4°F respectively.

Best Time to Visit Michigan City
The most sunny months:
September 17 days
August 16 days
June 14 days
The most warm months:
July 80.8 °F
August 80.3 °F
June 77.0 °F
Warmest sea temperature:
August 76.9 °F
July 75.9 °F
September 72.4 °F
The most cold months:
January 26.6 °F
February 30.3 °F
December 34.8 °F
The most rainy months:
October 3 days
June 3 days
August 2 days
The most windy months:
November 12 mph
March 12 mph
December 12 mph

Michigan City on the Weather Map

USA Resorts:
NAME
Chicago +44
Hawaii +76
Honolulu +76
Houston +78
Las Vegas +96
Los Angeles +100
Maui +70
Miami +80
Miami Beach +82
New York +42
San Diego +94
San Francisco +74
Sarasota +76
Tampa +82
Washington +60
24 Hours Weather Forecast
Michigan City
Local time: 17:23
13 mar, friday
1800 46°F
E
29 mph
2100 34°F
SE
25 mph
14 mar, saturday
0000 32°F
SE
17 mph
0300 30°F
SE
12 mph
0600 30°F
S
11 mph
0900 30°F
S
5 mph
1200 30°F
W
3 mph
1500 32°F
SW
6 mph