Measurements:
°C
°F
Port Clinton
50°F
N 11 mph
Feels like: 46°F
Precip: 0%
World Resorts USA Port Clinton Weather

Port Clinton Sea Water Temperature

Current Sea Water Temperature:
+31.8°F
Maximum Sea Water Temperature in January: 37.2°F
Minimum Sea Water Temperature in January: 31.2°F
Average water temperature in January: 33.0°F

Sea Water Temperature for the Last 10 Days:

January 08 31.8°F January 03 31.6°F
January 07 31.8°F January 02 31.4°F
January 06 31.8°F January 01 31.6°F
January 05 31.6°F December 31 31.6°F
January 04 31.6°F December 30 31.4°F

When is the Warmest Sea for Port Clinton?

According to our data for the last three years for Port Clinton the highest average sea water temperature was in July, August and September.

Average Water Temperature by Month, °F

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Port Clinton was 84.1°F. The maximum and minimum values were 81.6°F and 86.2°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Port Clinton was 79.6°F. The maximum and minimum values were 71.0°F and 85.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Port Clinton was 73.1°F. The maximum and minimum values were 69.8°F and 75.6°F respectively.

Best Time to Visit Port Clinton
The most sunny months:
September 16 days
August 14 days
October 14 days
The most warm months:
July 81.8 °F
August 80.3 °F
June 77.1 °F
Warmest sea temperature:
July 81.1 °F
August 80.1 °F
September 74.1 °F
The most cold months:
January 28.8 °F
February 30.3 °F
December 35.3 °F
The most rainy months:
July 4 days
April 3 days
May 3 days
The most windy months:
March 12 mph
November 12 mph
December 12 mph

Port Clinton on the Weather Map

USA Resorts:
NAME
Chicago +54
Hawaii +78
Honolulu +78
Houston +78
Las Vegas +54
Los Angeles +58
Maui +72
Miami +86
Miami Beach +80
New York +52
San Diego +64
San Francisco +52
Sarasota +82
Tampa +88
Washington +60
24 Hours Weather Forecast
Port Clinton
Local time: 15:31
08 jan, thursday
1800 46°F
N
12 mph
2100 40°F
NW
14 mph
09 jan, friday
0000 42°F
N
21 mph
0300 44°F
N
24 mph
0600 44°F
N
24 mph
0900 46°F
N
25 mph
1200 48°F
NE
20 mph
1500 50°F
NE
21 mph