Measurements:
°C
°F
Port Clinton
38°F
E 34 mph
Feels like: 24°F
Precip: 0%
World Resorts USA Port Clinton Weather

Port Clinton Sea Water Temperature

Current Sea Water Temperature:
+39.0°F
Maximum Sea Water Temperature in March: 47.0°F
Minimum Sea Water Temperature in March: 32.0°F
Average water temperature in March: 37.5°F

Sea Water Temperature for the Last 10 Days:

March 13 39.0°F March 08 33.2°F
March 12 35.2°F March 07 33.2°F
March 11 35.2°F March 06 33.0°F
March 10 35.6°F March 05 32.6°F
March 09 34.6°F March 04 32.4°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 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
Chicago +42
Hawaii +76
Honolulu +76
Houston +82
Las Vegas +96
Los Angeles +100
Maui +70
Miami +84
Miami Beach +82
New York +42
San Diego +94
San Francisco +72
Sarasota +80
Tampa +80
Washington +56
24 Hours Weather Forecast
Port Clinton
Local time: 17:03
13 mar, friday
1800 38°F
E
34 mph
2100 34°F
E
34 mph
14 mar, saturday
0000 32°F
E
31 mph
0300 30°F
E
28 mph
0600 30°F
SE
22 mph
0900 30°F
SE
15 mph
1200 30°F
SE
11 mph
1500 34°F
S
6 mph