World sea water temperatures

Water temperature in Casco Bay (ME) in January

Is it warm enough to swim in Casco Bay in January? Average water temperature in Casco Bay in January is 41.7°F and therefore is not suitable for comfortable swimming. The warmest sea in Casco Bay in January is 46.6°F, and the coldest is 36.9°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Casco Bay

Changes water temperature in Casco Bay in January 2025, 2024

To get an accurate forecast for the water temperature in Casco Bay for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Casco Bay, 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 143°F41.7°F40.3°F46.6°F
January 243°F40.8°F40.5°F46.6°F
January 343.5°F40.8°F39.7°F46.6°F
January 443°F42.4°F39.6°F46.2°F
January 542.6°F42.1°F38.8°F45.7°F
January 642.6°F41.9°F38.5°F45.9°F
January 742.6°F41.9°F39.4°F46°F
January 842.6°F41.7°F39.2°F46.4°F
January 942.4°F41.4°F39.6°F45.7°F
January 1042.1°F42.3°F39.4°F45.7°F
January 1141.7°F42.3°F39.6°F45°F
January 1240.8°F41.4°F39.6°F45.7°F
January 1341°F42.4°F39.7°F46°F
January 1440.6°F42.1°F39.4°F46°F
January 1540.6°F41.7°F39.4°F45.7°F
Day 2025 2024 Min Max
January 1641°F41.2°F39.2°F45°F
January 1741.2°F40.3°F39°F44.2°F
January 1840.8°F41°F39°F44.1°F
January 1940.8°F40.5°F39°F44.2°F
January 2040.3°F40.5°F38.5°F44.4°F
January 2140.5°F39.7°F38.3°F43.9°F
January 2239.9°F39.9°F38.1°F43.9°F
January 2340.3°F40.5°F37.4°F43.7°F
January 2440.3°F39.7°F36.9°F43.3°F
January 2540.3°F39.6°F37.2°F42.4°F
January 2640.5°F39.6°F37.9°F42.3°F
January 2740.3°F39.6°F37.6°F41.9°F
January 2840.5°F39.6°F37.8°F41.9°F
January 2939.9°F39.7°F38.1°F42.1°F
January 3039.9°F39.4°F37.9°F41.7°F
January 3139.6°F38.8°F37.6°F41.7°F
Casco Bay water temp chart in January

Average water temperature in Casco Bay in January over a decade

20162017201820192020
42.6°F43°F40.8°F40.3°F41.4°F
20212022202320242025
41.9°F44.1°F42.1°F40.8°F41.2°F

Casco Bay sea state in January

Chart comparing the height of waves in Casco Bay 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 Casco Bay in January

Casco Bay 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
Bailey Island41.5°F36.9°F46.8°F
Peaks Island41.5°F36.7°F48°F
Yarmouth41°F36.1°F46°F
Portland41.5°F36.7°F48°F
Scarborough41.9°F37°F48°F
Georgetown42.1°F37.2°F47.7°F
Pine Point41.7°F37°F47.5°F
Boothbay Harbor42.1°F37°F47.1°F
North Bath41.5°F36.7°F45.9°F
Old Orchard Beach41.9°F37.4°F47.1°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 Casco Bay 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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