World sea water temperatures

Water temperature in Barnstable in July

Is it warm enough to swim in Barnstable in July? Average water temperature in Barnstable in July is 70°F and therefore suitable for comfortable swimming. The warmest sea in Barnstable in July is 77.9°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 Barnstable

Changes water temperature in Barnstable in July 2025, 2024

To get an accurate forecast for the water temperature in Barnstable for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Barnstable, 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 166.6°F68.5°F61.3°F73.8°F
July 266°F68.7°F61.2°F71.4°F
July 369.3°F69.4°F61.5°F72.5°F
July 470.2°F70.3°F61.5°F70.5°F
July 570.3°F70.2°F62.4°F71.8°F
July 670.3°F71.6°F61.7°F71.8°F
July 768.9°F71.2°F62.2°F72.9°F
July 870°F71.4°F62.2°F73.8°F
July 970°F72.3°F62.8°F73.8°F
July 1068.7°F74.5°F63°F74.5°F
July 1169.6°F74.3°F63°F74.3°F
July 1268.4°F74.1°F63.7°F74.1°F
July 1370.9°F73.2°F64.8°F75°F
July 1470.9°F76.6°F64.6°F76.6°F
July 1573.8°F75.6°F64.8°F75.6°F
Day 2025 2024 Min Max
July 1673.9°F75.4°F64.6°F75.4°F
July 1773.6°F72.3°F64.9°F74.1°F
July 1873.8°F71.1°F66°F73.9°F
July 1973.4°F72.9°F65.8°F74.5°F
July 2072.1°F74.7°F64.2°F75°F
July 2171.2°F75°F63.5°F75.7°F
July 2270.9°F74.1°F64.6°F77.4°F
July 2372.1°F72.5°F64.4°F75.9°F
July 2471.2°F71.4°F64.4°F76.3°F
July 2572.7°F71.1°F65.1°F76.3°F
July 2672.1°F73.4°F65.5°F76.6°F
July 2770.2°F72.9°F64.6°F76.8°F
July 2869.6°F71.6°F65.1°F77.9°F
July 2971.1°F71.8°F64.4°F76.6°F
July 3073.4°F72°F65.5°F76.8°F
July 3172°F73.2°F66°F76.6°F
Barnstable water temp chart in July

Average water temperature in Barnstable in July over a decade

20162017201820192020
69.8°F66.4°F70.9°F73°F73°F
20212022202320242025
71.1°F72.7°F73.4°F72.5°F70.9°F

Barnstable sea state in July

Chart comparing the height of waves in Barnstable 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 Barnstable in July

Barnstable 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
Sandy Neck Beach69.1°F61°F76.1°F
Mayflower Beach69.1°F61°F76.3°F
Grays Beach69.1°F61°F76.3°F
Chapin Beach69.1°F61°F76.3°F
Springhill Beach68.9°F61.2°F76.6°F
South Yarmouth70.7°F61.3°F79.2°F
Craigville Beach71.4°F61.7°F79.3°F
Centerville71.4°F61.7°F79.3°F
Dowses Beach71.4°F61.7°F79.3°F
Covell's Beach71.4°F61.7°F79.3°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 Barnstable 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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