World sea water temperatures

Water temperature in Ellsworth (ME) in September

Is it warm enough to swim in Ellsworth in September? Average water temperature in Ellsworth in September is 57.7°F and therefore is not suitable for comfortable swimming. The warmest sea in Ellsworth in September is 64.2°F, and the coldest is 54°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Ellsworth

Changes water temperature in Ellsworth in September 2025, 2024

To get an accurate forecast for the water temperature in Ellsworth for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Ellsworth, 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 160.1°F59.4°F55.8°F62.6°F
September 261.7°F59.9°F55.4°F62.2°F
September 361°F59.9°F54.1°F61.9°F
September 460.6°F59.5°F54.3°F62.2°F
September 5 59.5°F54.7°F61.3°F
September 6 59.4°F54.7°F62.6°F
September 7 59.2°F55°F63°F
September 8 59.7°F54.9°F64.2°F
September 9 59.2°F55°F62.6°F
September 10 58.1°F55.4°F63.5°F
September 11 58.5°F55.4°F62.4°F
September 12 59.5°F54.9°F62.6°F
September 13 59.5°F54.7°F63.5°F
September 14 59.5°F54.9°F62.1°F
September 15 58.8°F54.7°F61.2°F
Day 2025 2024 Min Max
September 16 58.8°F54.1°F61.5°F
September 17 59.4°F54°F61.2°F
September 18 59.2°F54°F60.3°F
September 19 58.8°F54.1°F60.8°F
September 20 58.5°F54.5°F60.3°F
September 21 58.1°F54.9°F60.6°F
September 22 58.3°F54.7°F59.7°F
September 23 57.7°F54.5°F59.4°F
September 24 57.9°F54.5°F60.1°F
September 25 58.1°F54.3°F59.5°F
September 26 57.6°F54.5°F61°F
September 27 57.7°F54.3°F60.8°F
September 28 57.6°F54.3°F60.3°F
September 29 57.6°F54.9°F59.9°F
September 30 57.9°F54.5°F60.1°F
Ellsworth water temp chart in September

Average water temperature in Ellsworth in September over a decade

20152016201720182019
57.6°F57.9°F56.5°F59.5°F57.7°F
20202021202220232024
58.6°F60.4°F60.3°F59.4°F58.8°F

Ellsworth sea state in September

Chart comparing the height of waves in Ellsworth 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 Ellsworth in September

Ellsworth 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
Union River Bay57.4°F54°F63.3°F
Seal Harbor Beach56.1°F52.7°F61.5°F
Bar Harbor56.7°F52.9°F64°F
Islesford56.1°F52.7°F61.7°F
Sand Beach56.1°F52.7°F61.9°F
Marshall Island56.8°F53.4°F62.8°F
Franklin56.8°F53.1°F65.1°F
Castine59°F54.9°F64.9°F
Stockton Springs59°F54.9°F65.3°F
Searsport59°F54.9°F65.3°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 Ellsworth 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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