Water temperature in Union River Bay (ME) in March

Is it warm enough to swim in Union River Bay in March? Average water temperature in Union River Bay in March is 37°F and therefore is not suitable for comfortable swimming. The warmest sea in Union River Bay in March is 42.4°F, and the coldest is 32.4°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 March 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 March.

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

Chart comparing the height of waves in Union River Bay in March 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.

You can also view information about water temperature for other months by clicking on the month button below

The nearest locations with the average water temperature in March. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

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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.