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Water temperature in Union River Bay (ME) in January

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Is it warm enough to swim in Union River Bay in January? Average water temperature in Union River Bay in January is 40.5°F and therefore is not suitable for comfortable swimming. The warmest sea in Union River Bay in January is 45.3°F, and the coldest is 35.1°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Union River Bay

Changes water temperature in Union River Bay in January 2025, 2024

To get an accurate forecast for the water temperature in Union River 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 Union River 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 140.6°F42.1°F38.8°F45.3°F
January 241°F41.7°F40.5°F45°F
January 340.6°F41.2°F40.1°F44.6°F
January 439.9°F41.4°F39.2°F44.2°F
January 540.1°F41.2°F39.2°F44.2°F
January 639°F40.5°F39°F44.2°F
January 739.2°F40.5°F38.8°F44.2°F
January 837.9°F40.6°F37.9°F44.6°F
January 937.8°F40.5°F37.8°F44.1°F
January 1037.9°F41°F37.9°F44.1°F
January 1138.1°F40.3°F38.1°F43.2°F
January 1238.8°F40.1°F38.8°F43.2°F
January 1338.5°F40.1°F38.5°F43.3°F
January 1437.4°F40.3°F37.4°F43.3°F
January 1537.6°F39.9°F37.6°F43.3°F
Day 2025 2024 Min Max
January 1637.4°F39.9°F37.4°F43°F
January 1737.6°F38.8°F37.6°F42.6°F
January 1837°F38.3°F37°F42.3°F
January 1937.9°F37.9°F37.9°F42.4°F
January 2037.9°F38.1°F37.8°F42.3°F
January 2136.5°F37.6°F36.5°F42.4°F
January 2237.2°F37.6°F36.7°F42.3°F
January 2337.6°F37.9°F37.4°F42.1°F
January 2435.8°F37.9°F35.2°F41.7°F
January 2536°F36.9°F35.8°F41.9°F
January 2636.3°F37°F36.1°F41.4°F
January 2736.3°F36.9°F36.3°F41.4°F
January 2836.7°F37.2°F36.5°F41.7°F
January 2936.9°F37.6°F36.1°F41.2°F
January 3035.1°F37.2°F35.1°F40.8°F
January 3135.4°F37.4°F35.4°F40.8°F
Union River Bay water temp chart in January

Average water temperature in Union River Bay in January over a decade

20162017201820192020
41.9°F42.1°F40.5°F38.8°F39°F
20212022202320242025
40.5°F39.2°F41.2°F39.2°F37.8°F

Union River Bay sea state in January

Chart comparing the height of waves in Union River 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 Union River Bay in January

Union River 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
Marshall Island42.3°F37.9°F46.4°F
Bar Harbor40.8°F36.3°F45.7°F
Hancock40.5°F34°F45.5°F
Castine39.2°F34.7°F44.2°F
Franklin40.5°F34°F45.5°F
Sullivan40.5°F34°F45.5°F
Stockton Springs39.2°F34.9°F43.9°F
Bayside39.2°F34.3°F44.4°F
Vinalhaven40.6°F36°F45.1°F
Bucksport39.2°F35.1°F43.5°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 Union River 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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