Measurements:
°C
°F
Port Clinton
74°F
NE 14 mph
Feels like: 78°F
Precip: 11%
World Resorts USA Port Clinton Weather

Port Clinton Sea Water Temperature

Current Sea Water Temperature:
+76.4°F
Maximum Sea Water Temperature in September: 81.2°F
Minimum Sea Water Temperature in September: 64.2°F
Average water temperature in September: 74.5°F

Sea Water Temperature for the Last 10 Days:

September 15 76.4°F September 10 79.0°F
September 14 78.2°F September 09 78.6°F
September 13 78.4°F September 08 78.6°F
September 12 78.8°F September 07 79.4°F
September 11 79.4°F September 06 80.2°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: 2026 2025 2024

The average sea surface temperature in July 2026 for Port Clinton was 82.9°F. The maximum and minimum values were 77.6°F and 86.2°F respectively.

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Port Clinton was 80.2°F. The maximum and minimum values were 77.2°F and 82.2°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Port Clinton was 78.9°F. The maximum and minimum values were 76.4°F and 80.8°F respectively.

Best Time to Visit Port Clinton
The most sunny months:
September 16 days
June 15 days
July 15 days
The most warm months:
July 82.4 °F
August 80.4 °F
June 77.4 °F
Warmest sea temperature:
July 81.4 °F
August 80.1 °F
September 74.1 °F
The most cold months:
January 27.9 °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
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
Port Clinton
Local time: 11:15
15 sep, tuesday
1200 74°F
NE
14 mph
1500 80°F
NE
11 mph
1800 80°F
N
11 mph
2100 78°F
N
13 mph
16 sep, wednesday
0000 74°F
NE
2 mph
0300 74°F
NE
3 mph
0600 72°F
NE
1 mph
0900 72°F
S
3 mph