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Water temperature in Port Clinton (OH) in May

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Is it warm enough to swim in Port Clinton in May? Average water temperature in Port Clinton in May is 59.4°F and therefore is not suitable for comfortable swimming. The warmest water in Port Clinton in May is 70.5°F, and the coldest is 49.1°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Port Clinton

Changes water temperature in Port Clinton in May 2025, 2024

To get an accurate forecast for the water temperature in Port Clinton for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Port Clinton, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of May.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
May 159.7°F55.8°F49.8°F59.7°F
May 259.2°F59.2°F50.9°F59.2°F
May 359°F59°F51.3°F59°F
May 459°F59.2°F50.5°F59.2°F
May 559.2°F56.5°F49.1°F59.2°F
May 659.4°F57°F50.9°F59.4°F
May 756.5°F60.6°F50.7°F60.6°F
May 857.7°F61.7°F51.8°F61.7°F
May 956.5°F61.9°F52.2°F61.9°F
May 1056.8°F62.4°F50.5°F62.4°F
May 1157°F61°F51.4°F62.8°F
May 1257.9°F59.2°F50.5°F61.3°F
May 1358.3°F59.4°F49.1°F61.3°F
May 1458.8°F60.4°F50.2°F62.8°F
May 1561°F60.6°F51.1°F63.7°F
Day 2025 2024 Min Max
May 1660.1°F57.7°F52°F63°F
May 1763.9°F58.8°F52.7°F63.9°F
May 1862.1°F64°F53.6°F64°F
May 1962.2°F60.1°F54.3°F63.9°F
May 2063.1°F61°F55.2°F63.9°F
May 2163.1°F64.2°F55°F64.6°F
May 2263.1°F68.4°F55.2°F68.4°F
May 2360.1°F70°F53.2°F70°F
May 2460.3°F70.5°F54.3°F70.5°F
May 2560.3°F68.5°F54.9°F68.5°F
May 2659.9°F70.2°F55.6°F70.2°F
May 2760.3°F69.6°F56.1°F70°F
May 2860.4°F68.2°F56.5°F68.9°F
May 2962.6°F67.8°F59°F69.3°F
May 3061.3°F66.6°F61.3°F68.9°F
May 3162.2°F67.3°F60.6°F69.4°F
Port Clinton water temp chart in May

Average water temperature in Port Clinton in May over a decade

20162017201820192020
59.4°F59.2°F59.5°F58.6°F54.1°F
20212022202320242025
58.5°F59.2°F57.7°F62.8°F60.1°F

Port Clinton sea state in May

Chart comparing the height of waves in Port Clinton in May over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Port Clinton in May

Port Clinton water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in May?

Want to know where the water temperature in May is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in May. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Catawba Island57.7°F48.4°F69.8°F
Put-in-Bay57°F47.8°F69.8°F
Lakeside Marblehead57.6°F48°F70°F
Kelleys Island56.7°F47.5°F69.6°F
Sandusky56.8°F46.9°F68.9°F
Cedar Point56.8°F46.9°F68.9°F
Huron56.7°F46.4°F68.5°F
Pelee Island54.9°F45.3°F69.1°F
Rossford59.7°F49.1°F72.3°F
Toledo59.7°F49.1°F72.3°F

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Port Clinton is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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