Measurements:
°C
°F
Petoskey
14°F
NE 17 mph
Feels like: -4°F
Precip: 0%
World Resorts USA Petoskey Weather

Petoskey Sea Water Temperature

Current Sea Water Temperature:
+44.8°F
Maximum Sea Water Temperature in December: 47.8°F
Minimum Sea Water Temperature in December: 35.4°F
Average water temperature in December: 41.2°F

Sea Water Temperature for the Last 10 Days:

December 05 44.8°F November 30 45.4°F
December 04 45.0°F November 29 45.8°F
December 03 45.2°F November 28 45.4°F
December 02 45.2°F November 27 45.8°F
December 01 45.2°F November 26 46.4°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:
February 22.3 °F
January 23.0 °F
December 30.6 °F
The most rainy months:
October 3 days
July 2 days
March 2 days
The most windy months:
November 11 mph
December 11 mph
February 11 mph

Petoskey on the Weather Map

USA Resorts:
NAME
Chicago -2
Hawaii +78
Honolulu +78
Houston +44
Las Vegas +38
Los Angeles +50
Maui +72
Miami +68
Miami Beach +80
New York +16
San Diego +52
San Francisco +46
Sarasota +64
Tampa +62
Washington +26
24 Hours Weather Forecast
Petoskey
Local time: 04:39
05 dec, friday
0600 14°F
NE
17 mph
0900 20°F
NE
19 mph
1200 24°F
NE
18 mph
1500 26°F
NE
17 mph
1800 26°F
NE
16 mph
2100 28°F
NE
16 mph
06 dec, saturday
0000 30°F
NE
15 mph
0300 30°F
E
14 mph