World sea water temperatures

Water temperature in Guilford (CT) in January

Is it warm enough to swim in Guilford in January? Average water temperature in Guilford in January is 40.3°F and therefore is not suitable for comfortable swimming. The warmest sea in Guilford in January is 48.6°F, and the coldest is 34.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Guilford

Changes water temperature in Guilford in January 2025, 2024

To get an accurate forecast for the water temperature in Guilford for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Guilford, 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°F46.4°F40.3°F48.6°F
January 243.5°F45.9°F39.9°F48°F
January 342.4°F45.7°F39.4°F48°F
January 443°F45.9°F38.7°F46.9°F
January 541.7°F45.1°F37.9°F46.2°F
January 641.5°F44.8°F38.1°F46°F
January 741.5°F44.6°F38.1°F45.7°F
January 839.9°F44.4°F37.9°F45.7°F
January 939.6°F43.9°F37°F45.7°F
January 1039.4°F44.8°F36.9°F46.4°F
January 1140.1°F44.6°F36.5°F45.3°F
January 1239°F44.2°F36.7°F44.6°F
January 1339.6°F44.6°F36.3°F44.6°F
January 1439.2°F43.9°F36.1°F44.4°F
January 1538.7°F43.5°F35.8°F44.2°F
Day 2025 2024 Min Max
January 1638.7°F43.2°F35.2°F44.1°F
January 1738.7°F42.4°F35.2°F43.2°F
January 1837.4°F41.9°F34.7°F43°F
January 1937.9°F41.5°F34.7°F43°F
January 2037.4°F40.3°F35.2°F43.2°F
January 2137.8°F40.3°F35.4°F42.6°F
January 2237.6°F40.1°F35.8°F41.9°F
January 2336.7°F39.6°F35.8°F41.7°F
January 2436.5°F39.9°F35.8°F41.7°F
January 2536.7°F40.1°F35.6°F41.5°F
January 2636.7°F39.6°F35.2°F41.7°F
January 2736.7°F39.7°F35.1°F42.4°F
January 2836.5°F39.9°F35.1°F41.9°F
January 2937.4°F39.9°F35.2°F41.5°F
January 3036.7°F39.7°F35.1°F41.9°F
January 3136.5°F39.6°F34.7°F41.4°F
Guilford water temp chart in January

Average water temperature in Guilford in January over a decade

20162017201820192020
43.3°F41.2°F36.7°F39.9°F41°F
20212022202320242025
41.5°F41.7°F41.9°F42.6°F39°F

Guilford sea state in January

Chart comparing the height of waves in Guilford 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 Guilford in January

Guilford 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
Stony Creek Beach40.3°F34.5°F48.6°F
Hammonasset Beach40.8°F35.1°F48.4°F
Mattituck40.8°F33.3°F48.9°F
Breakwater Beach41°F33.4°F48.7°F
Southold41°F34.9°F48.4°F
New Haven39.6°F34.3°F47.8°F
Greenport41°F35.6°F48.2°F
Shelter Island Heights41°F35.6°F48.2°F
Shoreham40.1°F34.3°F48.6°F
Woodmont39.7°F34.3°F47.7°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 Guilford 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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