Measurements:
°C
°F
Petoskey
42°F
SW 4 mph
Feels like: 40°F
Precip: 10%
World Resorts USA Petoskey Weather

Petoskey Sea Water Temperature

Current Sea Water Temperature:
+65.4°F
Maximum Sea Water Temperature in October: 68.0°F
Minimum Sea Water Temperature in October: 50.2°F
Average water temperature in October: 60.5°F

Sea Water Temperature for the Last 10 Days:

October 05 65.4°F September 30 67.2°F
October 04 65.6°F September 29 66.2°F
October 03 66.8°F September 28 65.2°F
October 02 67.2°F September 27 64.6°F
October 01 67.0°F September 26 63.2°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Petoskey was 74.6°F. The maximum and minimum values were 72.2°F and 76.4°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Petoskey was 72.1°F. The maximum and minimum values were 61.6°F and 76.6°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Petoskey was 70.2°F. The maximum and minimum values were 63.0°F and 74.2°F respectively.

Best Time to Visit Petoskey
The most sunny months:
August 14 days
July 14 days
May 12 days
The most warm months:
July 76.7 °F
August 76.6 °F
June 70.5 °F
Warmest sea temperature:
August 73.2 °F
July 70.1 °F
September 69.0 °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
F°
Boston +58
Chicago +62
Hawaii +82
Houston +86
Las Vegas +92
Los Angeles +100
Maui +74
Miami +88
Myrtle Beach +70
New York +62
San Diego +84
San Francisco +66
Santa Monica +94
Sarasota +84
Washington +64
24 Hours Weather Forecast
Petoskey
Local time: 20:26
05 oct, monday
2100 42°F
SW
4 mph
06 oct, tuesday
0000 40°F
W
4 mph
0300 40°F
NW
4 mph
0600 40°F
N
6 mph
0900 46°F
N
6 mph
1200 60°F
NE
13 mph
1500 68°F
NE
16 mph
1800 66°F
NE
15 mph