World sea water temperatures

Water temperature in West Dennis in August

Is it warm enough to swim in West Dennis in August? Average water temperature in West Dennis in August is 71.6°F and therefore suitable for comfortable swimming. The warmest sea in West Dennis in August is 80.1°F, and the coldest is 64°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in West Dennis

Changes water temperature in West Dennis in August 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
August 171.1°F76.3°F67.6°F77.9°F
August 272°F75.9°F68°F77.2°F
August 372°F76.5°F68.2°F77.9°F
August 471.4°F75°F68.7°F77.5°F
August 572.3°F75.4°F69.1°F77.7°F
August 672°F76.3°F68.9°F79.5°F
August 772.5°F73.4°F67.6°F79.3°F
August 873.2°F74.3°F67.1°F78.8°F
August 973.2°F75.4°F66.9°F80.1°F
August 1072.5°F75°F66.7°F78.3°F
August 1174.3°F74.5°F66.7°F76.8°F
August 1274.1°F75°F67.6°F76.6°F
August 1372.5°F75°F67.1°F77.5°F
August 1474.5°F75.4°F67.3°F77.2°F
August 1574.8°F74.1°F67.3°F77.4°F
Day 2025 2024 Min Max
August 1674.3°F73.9°F66.7°F75.7°F
August 1774.8°F70.5°F65.7°F75.7°F
August 1873.8°F72.3°F64.4°F75.4°F
August 1972.9°F72°F64°F75.2°F
August 2072.7°F73°F64.9°F76.3°F
August 2170.9°F73.4°F65.5°F75.9°F
August 2270.3°F72°F65.5°F75.2°F
August 2370.2°F72.1°F65.3°F75.6°F
August 2470°F72.1°F65.3°F76.1°F
August 2571.4°F72.3°F65.7°F76.8°F
August 2671.1°F72.3°F64.2°F77.7°F
August 2772°F72.7°F66°F77.7°F
August 2870.7°F72.9°F65.7°F76.6°F
August 2970.9°F72°F65.7°F75°F
August 3071.4°F71.4°F66.2°F75.4°F
August 3171.1°F71.8°F66.2°F75.9°F
West Dennis water temp chart in August

Average water temperature in West Dennis in August over a decade

20162017201820192020
73°F70°F72.3°F74.1°F74.7°F
20212022202320242025
74.7°F75.4°F72.5°F73.6°F72.1°F

West Dennis sea state in August

Chart comparing the height of waves in West Dennis in August 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 West Dennis in August

West Dennis 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 August?

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

AvrMinMax
Bass River71.6°F64°F78.6°F
Smugglers Beach71.6°F64°F78.6°F
West Yarmouth72.1°F64.4°F79.9°F
Sea Gull Beach72.1°F64.4°F79.9°F
Seagull Beach72.1°F64.4°F79.9°F
Lewis Bay72.1°F64.4°F79.9°F
Sea Street Beach70.9°F63.9°F77.2°F
Colonial Acres Beach72.1°F64.4°F79.9°F
Hyannis72.5°F64.6°F80.4°F
Kalmus Beach72.5°F64.6°F80.4°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 West Dennis 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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