World sea water temperatures

Water temperature in Siasconset (MA) in December

Is it warm enough to swim in Siasconset in December? Average water temperature in Siasconset in December is 46°F and therefore is not suitable for comfortable swimming. The warmest sea in Siasconset in December is 51.6°F, and the coldest is 40.1°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 December 2024, 2023

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 December.

You can choose any other years:

Year 1:   Year 2:


Day 2024 2023 Min Max
December 147.8°F47.7°F46.4°F51.6°F
December 247.3°F47.7°F46.6°F50.9°F
December 346.9°F47.7°F46°F51.1°F
December 447.3°F48.2°F45.9°F50.9°F
December 546°F48°F46°F50.7°F
December 645.9°F48°F45.9°F50.5°F
December 745°F47.1°F45°F50.5°F
December 844.6°F47.5°F44.6°F50.7°F
December 944.8°F46.8°F44.4°F50.4°F
December 1044.1°F46.8°F44.1°F50.2°F
December 1144.2°F47.5°F44.2°F49.6°F
December 1245°F46.6°F43.7°F49.6°F
December 1344.4°F46.2°F43.2°F49.6°F
December 1444.6°F45.9°F43°F49.1°F
December 1545°F45.9°F43.2°F50.2°F
Day 2024 2023 Min Max
December 1646.2°F45.9°F42.4°F49.8°F
December 1745.7°F45.9°F42.8°F49.1°F
December 1844.8°F46.8°F42.4°F48.7°F
December 1946°F46.8°F42.3°F48°F
December 2045.7°F46.4°F41.9°F48.4°F
December 2146.4°F45.5°F42.1°F47.8°F
December 2245.1°F45.5°F41.9°F48.2°F
December 2345°F45.5°F41.7°F47.7°F
December 2445.1°F45.5°F42.4°F47.7°F
December 2544.6°F45.9°F42.4°F47.7°F
December 2643.5°F45.3°F41.7°F47.8°F
December 2743.5°F45.1°F42.3°F48°F
December 2842.4°F45°F42.1°F47.5°F
December 2942.4°F46.4°F42.3°F46.4°F
December 3043.9°F46°F41.4°F46°F
December 3144.1°F47.1°F40.1°F47.1°F
Siasconset water temp chart in December

Average water temperature in Siasconset in December over a decade

20152016201720182019
48.2°F46.6°F45.7°F44.4°F44.6°F
20202021202220232024
47.5°F47.5°F46.6°F46.6°F45.1°F

Siasconset sea state in December

Chart comparing the height of waves in Siasconset in December 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 December

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 December?

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

AvrMinMax
Jetties Beach45.5°F39.4°F51.3°F
Coskata Beach45.3°F39.2°F50.9°F
Cisco Beach45.7°F39.7°F51.6°F
Dionis Beach45.3°F39°F51.4°F
Madaket Beach45.3°F39.2°F51.6°F
Morris Island46.6°F41.4°F52.2°F
Hardings Beach46°F40.8°F51.8°F
Red River Beach45.7°F40.1°F51.4°F
Bank Street Beach45.1°F38.7°F51.1°F
South Beach46.2°F40.6°F52.5°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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