World sea water temperatures

Water temperature in South Thomaston (ME) in May

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Is it warm enough to swim in South Thomaston in May? Average water temperature in South Thomaston in May is 46.8°F and therefore is not suitable for comfortable swimming. The warmest sea in South Thomaston in May is 54.5°F, and the coldest is 40.6°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in South Thomaston

Changes water temperature in South Thomaston in May 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
May 143.2°F44.4°F40.6°F45.9°F
May 244.6°F44.8°F41°F45.3°F
May 343°F45.3°F41.9°F45.7°F
May 443.3°F45.1°F41.4°F46.6°F
May 543.2°F45.3°F42.4°F47.7°F
May 644.8°F46°F43.2°F46.9°F
May 744.8°F45.9°F43.2°F48°F
May 845.7°F45.9°F43°F48.2°F
May 945°F45.5°F43°F47.7°F
May 1047.3°F46°F42.6°F47.7°F
May 1146.2°F46.2°F43.2°F49.5°F
May 1246.8°F47.7°F43.9°F49.8°F
May 1346.8°F47.7°F43.9°F49.8°F
May 1447.1°F47.1°F44.4°F49.6°F
May 1546.4°F46.9°F45°F49.6°F
Day 2025 2024 Min Max
May 1646.6°F47.5°F44.6°F49.1°F
May 1747.1°F48.2°F44.4°F49.3°F
May 1848.7°F49.1°F44.1°F50.4°F
May 1948.7°F49.5°F43.9°F51.3°F
May 2047.5°F50.2°F44.2°F52°F
May 2148.4°F49.3°F44.2°F52°F
May 2247.3°F49.8°F45.3°F52.3°F
May 2347.3°F50.7°F45.1°F54.5°F
May 2447.7°F49.5°F45.9°F54.5°F
May 2547.5°F50°F45.9°F54°F
May 2648°F49.6°F45.7°F54°F
May 2747.8°F50.7°F46°F53.8°F
May 2848.4°F50.5°F46.2°F54.5°F
May 2948.7°F51.4°F46.6°F54°F
May 3048.2°F51.3°F46.8°F53.4°F
May 3148.7°F51.3°F47.1°F54.3°F
South Thomaston water temp chart in May

Average water temperature in South Thomaston in May over a decade

20162017201820192020
47.3°F45.7°F47.3°F45.5°F45.9°F
20212022202320242025
47.1°F47.7°F47.8°F48°F46.6°F

South Thomaston sea state in May

Chart comparing the height of waves in South Thomaston in May 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 South Thomaston in May

South 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 May?

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

AvrMinMax
Thomaston47.1°F40.8°F54.7°F
Waldoboro47.1°F41.2°F55.2°F
Bremen47.3°F41.2°F55.6°F
Camden47.7°F40.6°F56.1°F
Vinalhaven46.2°F39.9°F54°F
Penobscot Bay46.8°F40.3°F54.1°F
Bristol47.1°F41.2°F55.8°F
Lincolnville47.7°F40.5°F56.8°F
Monhegan46.6°F41.2°F55.4°F
Pemaquid Beach47.1°F41.4°F56.3°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 South 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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