Measurements:
°C
°F
Michigan City
66°F
NE 12 mph
Feels like: 66°F
Precip: 72%
World Resorts USA Michigan City Weather

Michigan City Sea Water Temperature

Current Sea Water Temperature:
+68.0°F
Maximum Sea Water Temperature in September: 80.2°F
Minimum Sea Water Temperature in September: 66.0°F
Average water temperature in September: 72.5°F

Sea Water Temperature for the Last 10 Days:

September 15 68.0°F September 10 70.2°F
September 14 70.6°F September 09 71.6°F
September 13 72.0°F September 08 74.2°F
September 12 71.4°F September 07 77.8°F
September 11 70.4°F September 06 77.2°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Michigan City was 76.1°F. The maximum and minimum values were 71.4°F and 78.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Michigan City was 77.3°F. The maximum and minimum values were 70.4°F and 82.4°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Michigan City was 73.9°F. The maximum and minimum values were 68.0°F and 78.2°F respectively.

Best Time to Visit Michigan City
The most sunny months:
September 17 days
June 15 days
July 15 days
The most warm months:
July 81.6 °F
August 80.5 °F
June 77.3 °F
Warmest sea temperature:
August 76.8 °F
July 76.1 °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:
March 12 mph
November 12 mph
December 12 mph

Michigan City on the Weather Map

USA Resorts:
NAME
Boston +64
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +74
Maui +66
Miami +92
Myrtle Beach +86
New York +72
Panama City Beach +90
San Diego +72
San Francisco +60
Santa Monica +72
Sarasota +94
Washington +76
24 Hours Weather Forecast
Michigan City
Local time: 09:36
15 sep, tuesday
1200 74°F
NE
11 mph
1500 80°F
NE
7 mph
1800 84°F
N
7 mph
2100 72°F
SW
3 mph
16 sep, wednesday
0000 72°F
SW
6 mph
0300 70°F
S
5 mph
0600 70°F
SW
8 mph
0900 68°F
SW
4 mph