World sea water temperatures

Water temperature in Siasconset (MA) in July

Is it warm enough to swim in Siasconset in July? Average water temperature in Siasconset in July is 64.6°F and therefore is not suitable for comfortable swimming. The warmest sea in Siasconset in July is 69.8°F, and the coldest is 58.3°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Siasconset

Changes water temperature in Siasconset in July 2025, 2024

To get an accurate forecast for the water temperature in Siasconset for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Siasconset, 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 161.5°F62.2°F59.5°F64.4°F
July 259.2°F62.6°F58.6°F64.6°F
July 361°F61.2°F59.7°F65.1°F
July 461.5°F63.1°F58.3°F65.5°F
July 560.4°F62.6°F59°F67.1°F
July 661.3°F64°F59.4°F68.5°F
July 763.5°F62.8°F59.7°F69.3°F
July 866.2°F63.5°F59.5°F68.5°F
July 964.9°F63.3°F60.1°F69.1°F
July 1062.6°F61.7°F60.4°F69.1°F
July 1164.2°F64.6°F59.9°F69.4°F
July 1262.6°F63.5°F61°F69.1°F
July 1362.8°F63.5°F61.2°F69.1°F
July 1463.7°F64.8°F60.4°F69.3°F
July 1563.1°F65.7°F60.8°F68.7°F
Day 2025 2024 Min Max
July 1665.8°F67.5°F61.9°F68.7°F
July 1763.9°F67.6°F62.1°F69.3°F
July 1863.1°F68°F62.2°F69.4°F
July 1963.7°F69.3°F61.7°F69.3°F
July 2063.7°F66.6°F61.7°F69.3°F
July 2164.6°F68°F60.8°F69.1°F
July 2265.7°F66.2°F61.3°F67.8°F
July 2362.8°F64.9°F61.9°F68.5°F
July 2463.3°F64.8°F61.9°F68°F
July 2565.5°F64.8°F62.2°F67.3°F
July 2664.6°F66.4°F63.1°F67.6°F
July 2763.5°F62.1°F62.1°F67.6°F
July 2863.7°F63.5°F63°F68°F
July 2963.3°F61.5°F61.5°F68.2°F
July 3065.1°F61.2°F61.2°F69.8°F
July 3164.9°F62.8°F62.2°F68.2°F
Siasconset water temp chart in July

Average water temperature in Siasconset in July over a decade

20162017201820192020
65.5°F63.1°F61.9°F63.7°F63.7°F
20212022202320242025
64.8°F64.9°F63.9°F64.4°F63.3°F

Siasconset sea state in July

Chart comparing the height of waves in Siasconset 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 Siasconset in July

Siasconset 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
Jetties Beach66.7°F60.1°F73.4°F
Coskata Beach66.7°F59.9°F74.3°F
Cisco Beach66.4°F60.1°F72.9°F
Dionis Beach67.1°F60.3°F73.8°F
Madaket Beach67.3°F60.4°F73.4°F
Morris Island66°F59.9°F71.8°F
Hardings Beach66.7°F60.1°F72.5°F
Red River Beach67.6°F60.3°F73.9°F
Bank Street Beach68.5°F60.6°F75.4°F
South Beach68.2°F61.5°F73.6°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 Siasconset 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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