World sea water temperatures

Water temperature in Westbrook (CT) in September

Is it warm enough to swim in Westbrook in September? Average water temperature in Westbrook in September is 69.8°F and therefore suitable for comfortable swimming. The warmest sea in Westbrook in September is 76.1°F, and the coldest is 65.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Westbrook

Changes water temperature in Westbrook in September 2025, 2024

To get an accurate forecast for the water temperature in Westbrook for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Westbrook, 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 169.6°F68.7°F67.8°F73.6°F
September 268.9°F70.7°F68.2°F73.4°F
September 369.3°F69.4°F68°F74.3°F
September 469.6°F69.3°F68.7°F74.7°F
September 5 69.1°F68.7°F75°F
September 6 68.9°F68.7°F76.1°F
September 7 68°F68°F75.2°F
September 8 68.2°F68.2°F74.7°F
September 9 68.2°F68.2°F74.1°F
September 10 68.5°F68.5°F73.8°F
September 11 68°F68°F73.8°F
September 12 68.5°F68.4°F72.7°F
September 13 68°F68°F72.7°F
September 14 68.5°F68.5°F72.1°F
September 15 68.5°F68.5°F72.3°F
Day 2025 2024 Min Max
September 16 68.9°F68.5°F72°F
September 17 68°F67.1°F72°F
September 18 68°F67.3°F72.1°F
September 19 68.4°F66.4°F72.5°F
September 20 68.7°F66.7°F72.1°F
September 21 68.5°F66.9°F71.8°F
September 22 68.9°F67.1°F72°F
September 23 67.8°F66.7°F72°F
September 24 66.6°F66.6°F71.1°F
September 25 66.7°F66°F70.7°F
September 26 66.7°F65.5°F71.1°F
September 27 66.6°F65.7°F70.3°F
September 28 66.6°F66.2°F70°F
September 29 66.4°F66.2°F69.8°F
September 30 66.6°F66.4°F69.6°F
Westbrook water temp chart in September

Average water temperature in Westbrook in September over a decade

20152016201720182019
71.6°F71.2°F69.3°F72.1°F69.1°F
20202021202220232024
69.6°F70.7°F70.9°F69.4°F68.2°F

Westbrook sea state in September

Chart comparing the height of waves in Westbrook 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 Westbrook in September

Westbrook 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
Hammonasset Beach70.5°F66.6°F77.4°F
Old Lyme69.3°F64.2°F75.6°F
Madison70.7°F66.7°F77.5°F
Guilford71.2°F67.1°F78.3°F
Rocky Neck68.9°F63.3°F74.8°F
Stony Creek Beach71.4°F67.3°F78.3°F
Greenport70.2°F65.7°F76.5°F
Shelter Island Heights70.2°F65.7°F76.5°F
Waterford68.7°F63.1°F74.5°F
Southold70.3°F65.5°F77.4°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 Westbrook 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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