25.09
fri
fri
Day

64°F
SW 6 mph
Precip.
12%
12%
Night

55°F
W 7 mph
Precip.
4%
4%
26.09
sat
sat
Day

64°F
SW 4 mph
Precip.
10%
10%
Night

55°F
SW 5 mph
Precip.
18%
18%
27.09
sun
sun
Day

63°F
S 7 mph
Precip.
5%
5%
Night

57°F
SW 6 mph
Precip.
12%
12%
28.09
mon
mon
Day

66°F
S 6 mph
Precip.
3%
3%
Night

57°F
NW 6 mph
Precip.
8%
8%
29.09
tue
tue
Day

68°F
N 9 mph
Precip.
13%
13%
Night

64°F
NW 9 mph
Precip.
26%
26%
30.09
wed
wed
Day

68°F
N 9 mph
Precip.
13%
13%
Night

64°F
N 11 mph
Precip.
81%
81%
01.10
thu
thu
Day

61°F
N 16 mph
Precip.
79%
79%
Night

66°F
NE 5 mph
Precip.
59%
59%
sea water
temperature
temperature
| Michigan City |
monthly
weather
weather
| Michigan City |
current
weather
weather
| Michigan City |
14 days
forecast
forecast
| Michigan City |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 67.6°F. The highest and lowest sea temperatures during the month were 75.4°F and 54.1°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 61.6°F. The highest and lowest sea temperatures during the month were 68.5°F and 54.5°F.
Air temperature in Michigan City, °F
Precipitation total in Michigan City, in.
* Charts above show average data for the last 3 years.
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: 13:15
September 25, friday
1500

63°F
S
7 mph
7 mph
1800

61°F
S
7 mph
7 mph
2100

57°F
SW
7 mph
7 mph
September 26, saturday
0000

55°F
W
7 mph
7 mph
0300

52°F
W
7 mph
7 mph
0600

50°F
W
6 mph
6 mph
0900

54°F
W
6 mph
6 mph
1200

64°F
SW
4 mph
4 mph




























