World sea water temperatures

Water temperature in Stonington (ME) in July

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Is it warm enough to swim in Stonington in July? Average water temperature in Stonington in July is 57.2°F and therefore is not suitable for comfortable swimming. The warmest sea in Stonington in July is 64°F, and the coldest is 50.9°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Stonington

Changes water temperature in Stonington in July 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
July 154°F54.9°F52.3°F58.3°F
July 255.2°F54.9°F52.5°F58.3°F
July 356.3°F55.2°F52.7°F58.1°F
July 455.4°F55.6°F53.2°F58.1°F
July 555.2°F58.5°F51.1°F59.4°F
July 655.2°F58.1°F51.6°F59°F
July 755.4°F57.4°F52°F59.4°F
July 859.2°F58.6°F50.9°F59.7°F
July 954.9°F57.4°F52.3°F60.8°F
July 1055°F59.7°F53.1°F60.3°F
July 1155°F58.5°F53.2°F59.9°F
July 1254.5°F60.6°F53.4°F60.6°F
July 1355°F60.3°F53.8°F60.3°F
July 1455.2°F60.6°F54.3°F61°F
July 1555.9°F59.7°F54.3°F61.7°F
Day 2025 2024 Min Max
July 1653.8°F60.4°F53.8°F60.8°F
July 1754.5°F62.8°F54.5°F62.8°F
July 1856.3°F64°F54.9°F64°F
July 1954°F61.5°F54°F61.5°F
July 2054.9°F62.2°F54.3°F62.2°F
July 2155.8°F60.1°F54.5°F61.5°F
July 2256.3°F60.3°F55.4°F61.2°F
July 2356.3°F59.4°F54.7°F61.2°F
July 2456.3°F59°F54.9°F62.2°F
July 2556.8°F59°F54.9°F61.3°F
July 2657.2°F57°F55.6°F63°F
July 2756.1°F57.4°F55.6°F63.7°F
July 2857°F55.8°F55.8°F63.3°F
July 2958.3°F57.2°F55.8°F62.6°F
July 3057.4°F58.3°F55.9°F61.9°F
July 3156.7°F56.8°F56.1°F61.9°F
Stonington water temp chart in July

Average water temperature in Stonington in July over a decade

20162017201820192020
58.3°F55.6°F56.7°F56.5°F56.7°F
20212022202320242025
57.6°F59°F59.2°F58.8°F55.8°F

Stonington sea state in July

Chart comparing the height of waves in Stonington in July 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 Stonington in July

Stonington 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 July?

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

AvrMinMax
Penobscot Bay58.5°F51.4°F65.3°F
Islesboro59.4°F51.8°F68°F
Union River Bay56.7°F50.5°F64.4°F
Vinalhaven57.7°F51.1°F64.2°F
Marshall Island55.9°F48.4°F62.1°F
Swans Island55.4°F48.9°F61.9°F
Ellsworth57.4°F50.7°F66.2°F
Frenchboro55.2°F49.1°F61.9°F
Northport59.9°F52.9°F69.8°F
Tremont55.8°F50°F62.6°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 Stonington 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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