World sea water temperatures

Water temperature in Mystic (CT) in January

Is it warm enough to swim in Mystic in January? Average water temperature in Mystic in January is 42.3°F and therefore is not suitable for comfortable swimming. The warmest sea in Mystic in January is 49.6°F, and the coldest is 37°F. Average high air temperature in Mystic in January is 36°F, and average low temperature is 19°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Mystic

Changes water temperature in Mystic in January 2025, 2024

To get an accurate forecast for the water temperature in Mystic for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Mystic, 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 144.8°F47.1°F41.7°F49.6°F
January 244.4°F47.1°F41.2°F49.3°F
January 344.8°F46.8°F41.7°F49.1°F
January 444.6°F46.6°F39°F48.4°F
January 545°F46.6°F40.3°F47.5°F
January 644.4°F46.2°F40.1°F47.3°F
January 744.1°F45.9°F40.3°F47.1°F
January 843.2°F45.3°F40.1°F47.1°F
January 943.2°F45.1°F39.2°F46.9°F
January 1041.4°F45.5°F39°F47.3°F
January 1141.5°F45.1°F39°F46.9°F
January 1241.2°F45°F39°F47.1°F
January 1341.9°F45.7°F38.1°F47.3°F
January 1441.2°F44.8°F38.5°F46.6°F
January 1540.8°F45.1°F38.3°F46°F
Day 2025 2024 Min Max
January 1640.8°F44.8°F37.8°F45.5°F
January 1740.6°F44.6°F37.8°F45.7°F
January 1840.6°F44.4°F37.4°F45.1°F
January 1940.5°F44.1°F37.6°F44.8°F
January 2040.3°F43°F37.8°F44.8°F
January 2140.3°F43.2°F37.9°F45°F
January 2240.3°F42.8°F38.1°F44.2°F
January 2339.4°F41.9°F38.7°F43.9°F
January 2439°F41.5°F38.1°F44.1°F
January 2539.2°F41.2°F37.8°F44.1°F
January 2638.7°F40.8°F37.8°F43.9°F
January 2738.8°F40.5°F37.4°F44.6°F
January 2839.6°F40.3°F37.4°F44.2°F
January 2939.9°F40.1°F37.4°F43.9°F
January 3039.7°F40.1°F37.4°F43.7°F
January 3139.6°F39.9°F37°F43.5°F
Mystic water temp chart in January

Average water temperature in Mystic in January over a decade

20162017201820192020
45°F42.6°F39°F42.3°F42.8°F
20212022202320242025
43.7°F43.9°F43.3°F43.9°F41.4°F

Mystic sea state in January

Chart comparing the height of waves in Mystic 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 Mystic in January

Weather and climate in Mystic in January

This data display average monthly climate indicators in Mystic in January based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature36°F
  • Average LOW temperature19°F
  • Average rainfall days11 days
  • Average rainfall104mm/4.1''
  • Average daylight10h
  • Average sunshine6h
  • Average UV index2

Mystic 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
Noank42.3°F37°F49.6°F
Stonington42.6°F37.4°F49.6°F
New London41.9°F36.7°F49.6°F
Ocean Beach Park42.1°F36.9°F49.5°F
Fishers Island42.4°F37.2°F49.5°F
Watch Hill42.8°F37.6°F49.6°F
Westerly42.8°F37.6°F49.6°F
Misquamicut43°F37.4°F49.5°F
Waterford41.9°F36.5°F49.1°F
Niantic41.7°F36.3°F49.1°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 Mystic 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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