World sea water temperatures

Water temperature in Egg Harbor (WI) in September

Is it warm enough to swim in Egg Harbor in September? Average water temperature in Egg Harbor in September is 65.1°F and therefore is not suitable for comfortable swimming. The warmest water in Egg Harbor in September is 71.2°F, and the coldest is 55.8°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Egg Harbor

Changes water temperature in Egg Harbor in September 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
September 169.8°F70°F64.6°F71.2°F
September 269.4°F69.4°F65.5°F71.2°F
September 369.1°F68.9°F64°F71.1°F
September 467.8°F68.9°F64.2°F70.9°F
September 567.1°F68.7°F64.8°F71.2°F
September 666°F68.2°F64.8°F71.1°F
September 765.5°F67.6°F64.2°F70°F
September 864.4°F66.4°F64.2°F70°F
September 963.3°F65.3°F63.3°F69.4°F
September 1063.1°F65.1°F63.1°F69.3°F
September 1163.1°F66°F62.2°F68.9°F
September 1261.9°F65.3°F61.7°F68.5°F
September 1362.1°F66°F60.3°F68.4°F
September 1464.6°F66.4°F59.2°F67.8°F
September 1565.5°F66.2°F59.2°F67.8°F
Day 2025 2024 Min Max
September 1665.5°F67.1°F57.9°F68.9°F
September 1766.6°F67.8°F57.9°F69.4°F
September 1866.6°F68.4°F57.7°F68.4°F
September 1966.6°F69.3°F58.3°F69.3°F
September 2066.6°F70.3°F57°F70.3°F
September 2166°F68.9°F55.8°F68.9°F
September 2265.5°F68.2°F57.4°F68.2°F
September 2364.4°F68.2°F58.1°F68.2°F
September 2463.5°F67.5°F58.1°F67.5°F
September 2563.1°F66.9°F58.6°F67.3°F
September 26 66.6°F59.4°F66.9°F
September 27 66.6°F59.5°F66.7°F
September 28 67.1°F59.4°F67.1°F
September 29 66.4°F59°F66.6°F
September 30 65.5°F59.2°F65.5°F
Egg Harbor water temp chart in September

Average water temperature in Egg Harbor in September over a decade

20152016201720182019
64.4°F66.7°F65.8°F66.4°F63°F
20202021202220232024
63°F66.9°F66.6°F65.1°F67.5°F

Egg Harbor sea state in September

Chart comparing the height of waves in Egg Harbor in September 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 Egg Harbor in September

Egg Harbor water temperature during other months:

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

Lake Michigan temperature water in September

Where is the warm sea water in September?

Want to know where the water temperature in September 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 September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Ephraim64.2°F54.1°F71.1°F
Marinette65.3°F56.1°F71.6°F
Jacksonport64.2°F54.1°F71.2°F
Nicolet Bay64.8°F55.6°F71.4°F
Door County64.4°F54.1°F71.4°F
Whitefish Dunes64.4°F54.1°F71.4°F
Cave Point64.4°F54.1°F71.4°F
Moonlight Bay64.4°F54.1°F71.4°F
Baileys Harbor64.4°F54.1°F71.6°F
Little Sturgeon Bay65.7°F56.5°F72°F

Wisconsin photo gallery

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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 Egg Harbor 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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