World sea water temperatures

Water temperature in Islesford (ME) in May

Is it warm enough to swim in Islesford in May? Average water temperature in Islesford in May is 44.8°F and therefore is not suitable for comfortable swimming. The warmest sea in Islesford in May is 50.7°F, and the coldest is 38.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Islesford

Changes water temperature in Islesford in May 2025, 2024

To get an accurate forecast for the water temperature in Islesford for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Islesford, 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 141.4°F44.2°F38.5°F44.2°F
May 242.6°F44.1°F39.6°F44.1°F
May 343.5°F44.2°F40.3°F44.2°F
May 442.6°F43.5°F39.7°F45.9°F
May 541.7°F43.9°F41°F45°F
May 642.1°F43.7°F41.4°F44.8°F
May 742.3°F44.1°F41.5°F45.1°F
May 843.3°F44.1°F41.2°F45.1°F
May 941.9°F43.3°F41.2°F45.1°F
May 1042.3°F44.1°F41.7°F45.5°F
May 1143°F43.9°F41.7°F45.7°F
May 1243.5°F43.5°F41.4°F45.7°F
May 1343.9°F45.5°F42.1°F46.2°F
May 1445°F46.4°F42.6°F46.6°F
May 1544.2°F45.3°F42.4°F46.9°F
Day 2025 2024 Min Max
May 1644.4°F44.8°F42.3°F46.9°F
May 1746.4°F46.6°F41.9°F47.5°F
May 1847.1°F46.8°F41.9°F48°F
May 1947.3°F45.9°F41.7°F48.6°F
May 2047.1°F46.4°F42.1°F49.5°F
May 2144.2°F46.2°F42.1°F49.5°F
May 2244.4°F47.3°F43°F49.5°F
May 2344.4°F48°F43°F50.7°F
May 2444.8°F49.6°F43.3°F50.7°F
May 2545°F49.3°F43.7°F50.2°F
May 2644.8°F48.9°F44.2°F50.5°F
May 2745.5°F48.7°F44.6°F50.2°F
May 2845.9°F48°F44.2°F50.5°F
May 2945.9°F49.1°F44.1°F50°F
May 3045.1°F48.9°F44.6°F49.5°F
May 3144.4°F48.7°F44.4°F49.8°F
Islesford water temp chart in May

Average water temperature in Islesford in May over a decade

20162017201820192020
46.2°F43.7°F45.1°F43.2°F44.4°F
20212022202320242025
46.4°F45.9°F45.9°F46°F44.2°F

Islesford sea state in May

Chart comparing the height of waves in Islesford 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 Islesford in May

Islesford 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
Sand Beach45°F38.5°F50.9°F
Union River Bay45.9°F39.6°F52.5°F
Bar Harbor45.5°F38.8°F52.9°F
Marshall Island45.3°F39.6°F52°F
Sedgwick46.2°F39.7°F53.4°F
Steuben44.6°F38.5°F50.2°F
Franklin45.9°F39.2°F54.5°F
Hancock46°F39.2°F54.5°F
Trenton46°F39.4°F54.5°F
Surry46.8°F39.9°F57.6°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 Islesford 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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