World sea water temperatures

Water temperature in Sea Cliff in September

Is it warm enough to swim in Sea Cliff in September? Average water temperature in Sea Cliff in September is 71.6°F and therefore suitable for comfortable swimming. The warmest sea in Sea Cliff in September is 78.1°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 Sea Cliff

Changes water temperature in Sea Cliff in September 2025, 2024

To get an accurate forecast for the water temperature in Sea Cliff for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Sea Cliff, 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 171.6°F74.3°F70.9°F75.7°F
September 271.6°F74.1°F70.3°F75.4°F
September 371.1°F73°F69.6°F76.5°F
September 472°F72.3°F69.4°F77.7°F
September 572.5°F72.7°F69.8°F78.1°F
September 672.3°F71.6°F70°F77.9°F
September 772.5°F73.6°F70.2°F77°F
September 871.4°F72.5°F69.8°F76.1°F
September 971.2°F72°F69.6°F75.4°F
September 1071.2°F71.6°F69.3°F75.2°F
September 1171.8°F72°F68.9°F74.8°F
September 1272°F71.4°F68.9°F74.3°F
September 1371.8°F72.7°F68.4°F74.5°F
September 1471.6°F72.1°F68.7°F74.3°F
September 1572°F72.7°F68.7°F74.3°F
Day 2025 2024 Min Max
September 1671.8°F72.5°F68.5°F73.9°F
September 1771.4°F72.1°F67.5°F73.6°F
September 1872.1°F72°F67.6°F75.4°F
September 1971.1°F72°F66.9°F73.9°F
September 2071.4°F71.2°F67.3°F73.2°F
September 2170.9°F71.6°F67.3°F73.4°F
September 2270.7°F71.2°F67.6°F72.9°F
September 2370.5°F70.9°F68.2°F72.7°F
September 2470°F70.5°F68°F72.1°F
September 2569.6°F69.8°F67.6°F72.7°F
September 2670.7°F69.4°F67.8°F72.9°F
September 2771.2°F69.1°F67.5°F72.1°F
September 28 68.7°F67.3°F72°F
September 29 68.4°F66.9°F71.4°F
September 30 68°F65.5°F70.9°F
Sea Cliff water temp chart in September

Average water temperature in Sea Cliff in September over a decade

20152016201720182019
72.5°F72.3°F70.3°F73.6°F71.4°F
20202021202220232024
71.8°F73°F72.7°F72.1°F71.6°F

Sea Cliff sea state in September

Chart comparing the height of waves in Sea Cliff 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 Sea Cliff in September

Sea Cliff 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
New York City71.1°F64.8°F78.1°F
Rye Beach71.6°F65.5°F78.1°F
Hempstead Harbor71.6°F65.7°F78.1°F
Rye71.6°F65.7°F78.1°F
Glen Cove71.6°F65.7°F78.1°F
Port Chester71.6°F65.5°F78.1°F
Manorhaven71.4°F65.7°F77.9°F
Plandome71.4°F65.7°F77.9°F
East River71.4°F65.7°F77.9°F
New Rochelle71.4°F65.7°F77.9°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 Sea Cliff 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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