World sea water temperatures

Water temperature in Suamico (WI) in September

Is it warm enough to swim in Suamico in September? Average water temperature in Suamico in September is 67.3°F and therefore is not suitable for comfortable swimming. The warmest water in Suamico in September is 73.9°F, and the coldest is 59°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Suamico

Changes water temperature in Suamico in September 2025, 2024

To get an accurate forecast for the water temperature in Suamico for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Suamico, 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 169.4°F72.5°F66.9°F73.9°F
September 269.4°F71.4°F67.1°F73.6°F
September 368.2°F72.7°F67.5°F73.4°F
September 468.2°F71.4°F66.7°F73.2°F
September 566.6°F71.1°F66.6°F73.2°F
September 666.6°F70°F66.6°F73°F
September 763.9°F69.4°F63.9°F72°F
September 863.1°F69.3°F63.1°F72°F
September 961.9°F68.4°F61.9°F71.2°F
September 1062.4°F66.6°F62.4°F70.5°F
September 1162.6°F67.8°F62.6°F70°F
September 1263.1°F67.1°F63.1°F69.4°F
September 1363.5°F67.8°F61.9°F69.1°F
September 1466°F68.9°F61.9°F69.3°F
September 1566.6°F70°F61.7°F70.5°F
Day 2025 2024 Min Max
September 1668.7°F70.3°F60.4°F71.1°F
September 1769.6°F70.7°F60.4°F70.9°F
September 1870°F71.1°F60.4°F71.1°F
September 1970.7°F73.4°F60.8°F73.4°F
September 2070.2°F72.5°F60.3°F72.5°F
September 2169.4°F70.9°F59°F70.9°F
September 2268.7°F70.2°F60.4°F70.2°F
September 2368.2°F68.9°F61°F69.4°F
September 2467.5°F68.2°F60.8°F70.5°F
September 2566.6°F68.2°F60.6°F70.2°F
September 2667.8°F68.2°F60.6°F70°F
September 2767.5°F69.8°F60.6°F69.8°F
September 2867.1°F68.9°F60.4°F68.9°F
September 2968°F68.5°F60.1°F68.5°F
September 3067.8°F68.4°F60.1°F68.4°F
Suamico water temp chart in September

Average water temperature in Suamico in September over a decade

20162017201820192020
68.2°F67.3°F68.5°F66.2°F66.6°F
20212022202320242025
68.2°F67.6°F67.6°F69.8°F

Suamico sea state in September

Chart comparing the height of waves in Suamico 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 Suamico in September

Suamico 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 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
Sturgeon Bay64°F54.1°F70.9°F
Menominee65.1°F56.3°F71.6°F
Egg Harbor65.1°F55.8°F71.2°F
Whitefish Dunes64.4°F54.1°F71.4°F
Cave Point64.4°F54.1°F71.4°F
Fish Creek65.1°F55.8°F71.2°F
Door County64.4°F54.1°F71.4°F
Baileys Harbor64.4°F54.1°F71.6°F
Ephraim64.2°F54.1°F71.1°F
Moonlight Bay64.4°F54.1°F71.4°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 Suamico 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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