Measurements:
°C
°F
Petoskey
60°F
NE 17 mph
Feels like: 60°F
Precip: 33%
World Resorts USA Petoskey Weather

Petoskey Sea Water Temperature

Current Sea Water Temperature:
+71.2°F
Maximum Sea Water Temperature in September: 74.6°F
Minimum Sea Water Temperature in September: 63.6°F
Average water temperature in September: 69.1°F

Sea Water Temperature for the Last 10 Days:

September 15 71.2°F September 10 72.8°F
September 14 71.0°F September 09 72.6°F
September 13 71.6°F September 08 73.0°F
September 12 72.2°F September 07 73.2°F
September 11 72.8°F September 06 72.8°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 72.7°F. The maximum and minimum values were 71.0°F and 74.2°F respectively.

Best Time to Visit Petoskey
The most sunny months:
August 14 days
July 14 days
September 13 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 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 +64
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +74
Maui +66
Miami +92
Myrtle Beach +88
New York +72
Panama City Beach +90
San Diego +72
San Francisco +60
Santa Monica +72
Sarasota +94
Washington +76
24 Hours Weather Forecast
Petoskey
Local time: 11:14
15 sep, tuesday
1200 60°F
NE
17 mph
1500 66°F
NE
17 mph
1800 70°F
NE
16 mph
2100 62°F
S
10 mph
16 sep, wednesday
0000 60°F
SE
9 mph
0300 58°F
SE
4 mph
0600 56°F
S
4 mph
0900 56°F
SW
2 mph