World sea water temperatures

Water temperature in Thomaston (ME) in April

Is it warm enough to swim in Thomaston in April? Average water temperature in Thomaston in April is 40.8°F and therefore is not suitable for comfortable swimming. The warmest sea in Thomaston in April is 46.8°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 Thomaston

Changes water temperature in Thomaston in April 2025, 2024

To get an accurate forecast for the water temperature in Thomaston for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Thomaston, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of April.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
April 137.9°F39.2°F34.7°F40.1°F
April 237.6°F39.7°F34.9°F40.6°F
April 337.8°F39.7°F35.2°F40.3°F
April 438.7°F39.4°F35.1°F40.5°F
April 538.3°F39°F35.1°F40.6°F
April 638.3°F39.2°F35.4°F41.5°F
April 738.7°F38.1°F35.2°F41.4°F
April 838.5°F39°F35.4°F42.1°F
April 938.7°F39.4°F35.4°F42.4°F
April 1038.3°F39.9°F35.6°F41.5°F
April 1138.3°F40.3°F36°F42.1°F
April 1239°F39.9°F36.5°F43.2°F
April 1339°F41.7°F36.9°F44.1°F
April 1439.4°F42.1°F37.6°F43.9°F
April 1539.4°F43°F37.6°F44.2°F
Day 2025 2024 Min Max
April 1639.7°F43.7°F37.9°F45°F
April 1739.4°F43.9°F37.9°F45.7°F
April 1839.9°F44.2°F38.1°F46°F
April 1940.1°F45.1°F38.1°F45.1°F
April 2040.8°F43.5°F38.1°F45.3°F
April 2140.5°F42.3°F38.7°F44.8°F
April 2240.8°F43.2°F39.2°F44.4°F
April 2341.7°F43.5°F39.4°F44.6°F
April 2441.4°F43°F39.6°F45.7°F
April 2543.5°F42.6°F40.1°F45.7°F
April 2643.3°F43.3°F40.3°F45.3°F
April 2743.3°F43.5°F40.5°F45°F
April 2843.9°F44.1°F40.5°F45.1°F
April 2942.8°F44.4°F40.5°F46.8°F
April 3043.3°F44.8°F40.5°F46.2°F
Thomaston water temp chart in April

Average water temperature in Thomaston in April over a decade

20162017201820192020
41.5°F40.6°F40.8°F39.4°F41°F
20212022202320242025
42.1°F41.7°F43.2°F41.7°F40.1°F

Thomaston sea state in April

Chart comparing the height of waves in Thomaston in April 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 Thomaston in April

Thomaston 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 April?

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

AvrMinMax
Lincolnville40.6°F34°F46.8°F
Waldoboro41°F36.1°F47.3°F
Penobscot Bay40.5°F34.3°F46.4°F
Vinalhaven40.5°F35.1°F45.7°F
Bremen41.2°F36.1°F47.7°F
Islesboro40.5°F34°F47.3°F
Northport40.5°F34°F47.3°F
Bayside40.5°F34°F47.1°F
Belfast40.5°F34°F46.6°F
Deer Isle40.3°F34.9°F46°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 Thomaston 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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