World sea water temperatures

Water temperature in Siasconset (MA) in January

Is it warm enough to swim in Siasconset in January? Average water temperature in Siasconset in January is 41.9°F and therefore is not suitable for comfortable swimming. The warmest sea in Siasconset in January is 47.5°F, and the coldest is 36.5°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 January 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 January.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
January 144.1°F46.8°F40.1°F46.9°F
January 243.3°F46°F39.9°F46.4°F
January 342.1°F46°F39.6°F46.2°F
January 442.4°F46°F39.7°F46.6°F
January 543.5°F45.1°F39.2°F46.4°F
January 642.1°F44.6°F38.8°F47.1°F
January 741.7°F44.4°F37.8°F46.8°F
January 841.4°F44.4°F37.9°F47.5°F
January 941.2°F44.1°F37.4°F46.6°F
January 1040.6°F44.6°F36.9°F46.4°F
January 1140.6°F44.1°F37°F45.3°F
January 1240.5°F44.1°F36.7°F45°F
January 1340.8°F44.6°F37.9°F45°F
January 1440.8°F43.7°F37.9°F45°F
January 1540.1°F43.7°F38.3°F45°F
Day 2025 2024 Min Max
January 1639.6°F43.2°F38.3°F44.8°F
January 1739.7°F42.3°F38.5°F45°F
January 1839.6°F42.3°F38.8°F45.1°F
January 1939.6°F42.3°F39.6°F44.6°F
January 2040.1°F41.7°F39.6°F44.1°F
January 2139.7°F40.6°F39°F44.6°F
January 2239.7°F41.2°F39°F44.1°F
January 2338.5°F40.8°F38.5°F44.8°F
January 2438.7°F40.6°F38.3°F44.4°F
January 2538.7°F40.3°F38.1°F45°F
January 2637.9°F40.1°F36.5°F44.6°F
January 2737.8°F40.1°F36.7°F44.6°F
January 2837.2°F43.3°F36.5°F44.1°F
January 2936.5°F42.8°F36.5°F43.9°F
January 3036.7°F42.6°F36.5°F43.3°F
January 3137°F42.3°F36.7°F43.2°F
Siasconset water temp chart in January

Average water temperature in Siasconset in January over a decade

20162017201820192020
43.2°F43.9°F39°F40.6°F42.1°F
20212022202320242025
42.4°F43.2°F43.9°F43.2°F40.1°F

Siasconset sea state in January

Chart comparing the height of waves in Siasconset in January 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 January

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 January?

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

AvrMinMax
Jetties Beach41°F34.3°F47.3°F
Coskata Beach41°F33.8°F47.3°F
Cisco Beach41°F34.7°F47.5°F
Dionis Beach40.6°F34.3°F47.3°F
Madaket Beach40.6°F34°F47.3°F
Morris Island42.3°F37.8°F47.5°F
Hardings Beach41.9°F37°F47.5°F
Red River Beach41.4°F36.1°F47.3°F
Bank Street Beach40.6°F35.1°F47.1°F
South Beach40.6°F35.1°F47.3°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 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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