Measurements:
°C
°F
Petoskey
56°F
SE 6 mph
Feels like: 54°F
Precip: 0%
World Resorts USA Petoskey Weather

Petoskey Sea Water Temperature

Current Sea Water Temperature:
+37.8°F
Maximum Sea Water Temperature in May: 54.2°F
Minimum Sea Water Temperature in May: 34.2°F
Average water temperature in May: 41.8°F

Sea Water Temperature for the Last 10 Days:

May 14 37.8°F May 09 37.2°F
May 13 37.8°F May 08 37.0°F
May 12 36.8°F May 07 37.2°F
May 11 39.0°F May 06 36.8°F
May 10 40.4°F May 05 37.0°F

When is the Warmest Sea for Petoskey?

According to our data for the last three years for Petoskey 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 Petoskey was 72.6°F. The maximum and minimum values were 69.0°F and 76.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Petoskey was 69.5°F. The maximum and minimum values were 61.4°F and 74.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Petoskey was 66.8°F. The maximum and minimum values were 65.2°F and 69.6°F respectively.

Best Time to Visit Petoskey
The most sunny months:
September 13 days
August 13 days
July 13 days
The most warm months:
August 76.5 °F
July 76.1 °F
September 70.0 °F
Warmest sea temperature:
August 73.0 °F
July 69.7 °F
September 68.8 °F
The most cold months:
January 22.1 °F
February 22.6 °F
December 29.7 °F
The most rainy months:
April 3 days
October 3 days
July 2 days
The most windy months:
November 11 mph
December 11 mph
February 10 mph

Petoskey on the Weather Map

USA Resorts:
NAME
Boston +56
Chicago +58
Hawaii +78
Honolulu +78
Houston +104
Las Vegas +102
Los Angeles +76
Maui +72
Miami +90
Miami Beach +92
New York +70
San Diego +72
San Francisco +72
Sarasota +96
Tampa +96
24 Hours Weather Forecast
Petoskey
Local time: 16:22
14 may, thursday
1800 56°F
E
7 mph
2100 46°F
E
3 mph
15 may, friday
0000 42°F
N
5 mph
0300 40°F
N
6 mph
0600 40°F
N
6 mph
0900 52°F
N
11 mph
1200 56°F
N
11 mph
1500 64°F
NE
17 mph