World sea water temperatures

Water temperature in West Dennis in July

Is it warm enough to swim in West Dennis in July? Average water temperature in West Dennis in July is 70.2°F and therefore suitable for comfortable swimming. The warmest sea in West Dennis in July is 78.6°F, and the coldest is 61.2°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 July 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 July.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
July 166.7°F72°F61.3°F73°F
July 266.7°F72°F61.3°F72°F
July 369.3°F70.9°F61.5°F72.5°F
July 471.2°F72°F61.7°F72°F
July 570.2°F70.9°F62.2°F70.9°F
July 671.2°F71.2°F61.2°F72°F
July 770.2°F70.7°F61.5°F72.5°F
July 871.8°F70.2°F61.7°F71.8°F
July 971.2°F72.9°F62.1°F72.9°F
July 1070.3°F75.7°F62.2°F75.7°F
July 1170.5°F75.9°F62.2°F75.9°F
July 1266.4°F74.7°F63°F74.7°F
July 1368.5°F72.7°F64.2°F74.7°F
July 1469.6°F77.9°F64.8°F77.9°F
July 1572.9°F77.4°F64.2°F77.4°F
Day 2025 2024 Min Max
July 1673°F76.6°F63.7°F76.6°F
July 1773.6°F75°F64.2°F77.5°F
July 1874.8°F75.7°F65.3°F75.7°F
July 1975°F76.5°F65.3°F76.5°F
July 2073.6°F75.9°F63.3°F76.1°F
July 2174.1°F76.8°F62.8°F76.8°F
July 2273.9°F74.3°F63.9°F78.6°F
July 2373.4°F72.9°F63.7°F77°F
July 2474.1°F72.1°F64.2°F76.5°F
July 2573.9°F71.8°F64.9°F76.8°F
July 2674.3°F74.1°F65.8°F76.5°F
July 2771.6°F74.3°F66°F76.1°F
July 2868.9°F73.9°F66.6°F78.3°F
July 2969.4°F73°F66.7°F78.6°F
July 3072.9°F72.3°F67.3°F76.8°F
July 3173.4°F73.4°F67.8°F77.2°F
West Dennis water temp chart in July

Average water temperature in West Dennis in July over a decade

20162017201820192020
70.5°F68.2°F70.2°F72.9°F73.4°F
20212022202320242025
71.8°F73.9°F73.6°F73.8°F71.4°F

West Dennis sea state in July

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

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 July?

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

AvrMinMax
Bass River70.2°F61.2°F78.1°F
Smugglers Beach70.2°F61.2°F78.1°F
West Yarmouth70.9°F61.3°F78.8°F
Sea Gull Beach70.9°F61.3°F78.8°F
Seagull Beach70.9°F61.3°F78.8°F
Lewis Bay70.9°F61.3°F78.8°F
Sea Street Beach69.4°F60.8°F77.2°F
Colonial Acres Beach70.9°F61.3°F78.8°F
Hyannis71.2°F61.5°F79.2°F
Kalmus Beach71.2°F61.5°F79.2°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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