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Water temperature in Penobscot Bay (ME) in March

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Is it warm enough to swim in Penobscot Bay in March? Average water temperature in Penobscot Bay in March is 36.7°F and therefore is not suitable for comfortable swimming. The warmest sea in Penobscot Bay in March is 42.3°F, and the coldest is 32.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Penobscot Bay

Changes water temperature in Penobscot Bay in March 2025, 2024

To get an accurate forecast for the water temperature in Penobscot 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 Penobscot Bay, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of March.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
March 134.3°F35.8°F32.5°F38.8°F
March 234°F35.8°F32.9°F38.1°F
March 334°F37.2°F33.1°F38.5°F
March 433.6°F36.9°F33.3°F37.8°F
March 534°F37.2°F33.1°F38.5°F
March 634.2°F36.7°F32.9°F37.9°F
March 734.3°F36.9°F32.7°F38.8°F
March 834.5°F37.2°F32.9°F38.3°F
March 934.3°F36.9°F32.9°F38.5°F
March 1034°F37.9°F33.1°F38.7°F
March 1135.4°F37.2°F33.6°F38.8°F
March 1235.2°F37.8°F33.8°F38.5°F
March 1335.4°F37.4°F33.4°F39.2°F
March 1434.7°F37.8°F33.4°F39°F
March 1535.4°F37.9°F33.6°F38.7°F
Day 2025 2024 Min Max
March 1636.1°F38.1°F33.3°F39.4°F
March 1736.1°F38.3°F33.4°F39°F
March 1836.3°F39°F33.4°F40.1°F
March 1936°F38.8°F33.3°F39.9°F
March 2039.4°F38.1°F33.6°F40.1°F
March 2136.1°F38.1°F33.8°F40.6°F
March 2236.1°F38.3°F33.3°F42.3°F
March 2336.7°F37.9°F33.1°F41.9°F
March 2435.4°F37.2°F33.3°F41.4°F
March 2536.1°F37.8°F33.6°F41.4°F
March 2635.6°F38.7°F34°F40.6°F
March 2736.5°F38.5°F34.2°F39.6°F
March 2837.4°F38.8°F34.2°F39.6°F
March 2937.6°F38.7°F34°F39.6°F
March 3036.5°F38.7°F34.2°F39.6°F
March 3138.1°F39.4°F34.2°F39.7°F
Penobscot Bay water temp chart in March

Average water temperature in Penobscot Bay in March over a decade

20162017201820192020
37.9°F36.3°F37.9°F34.7°F38.1°F
20212022202320242025
37°F37°F37.9°F37.8°F35.6°F

Penobscot Bay sea state in March

Chart comparing the height of waves in Penobscot 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.

Waves height in Penobscot Bay in March

Penobscot 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 March?

Want to know where the water temperature in March 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 March. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Northport36.3°F31.8°F41.9°F
Searsport36.3°F32.4°F41.5°F
Castine36.3°F32.4°F41.4°F
Belfast36.3°F32°F41.5°F
Stockton Springs36.1°F32.5°F41.4°F
Union River Bay37°F32.4°F42.4°F
Marshall Island38.5°F34.3°F43.2°F
Ellsworth36.9°F32°F42.4°F
Surry36.5°F31.8°F42.3°F
Cushing37.8°F33.6°F42.8°F

Penobscot Bay photo gallery

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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 Penobscot 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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