World sea water temperatures

Water temperature in Eastham in May

Is it warm enough to swim in Eastham in May? Average water temperature in Eastham in May is 49.8°F and therefore is not suitable for comfortable swimming. The warmest sea in Eastham in May is 61°F, and the coldest is 43.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Eastham

Changes water temperature in Eastham in May 2025, 2024

To get an accurate forecast for the water temperature in Eastham for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Eastham, 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 145.3°F46.4°F43.9°F48.2°F
May 246.8°F45.7°F44.2°F48.9°F
May 346°F46°F43.7°F47.5°F
May 445°F46.2°F43.9°F48.2°F
May 547.5°F45.7°F44.2°F48.6°F
May 647.7°F46°F45.1°F48.9°F
May 748°F47.1°F45.3°F49.3°F
May 847.7°F46.9°F46°F49.6°F
May 947.5°F47.3°F45.9°F50°F
May 1049.5°F47.8°F45.9°F49.6°F
May 1149.3°F47.8°F46°F50.4°F
May 1249.5°F47.1°F45.7°F50.9°F
May 1348.7°F48.7°F46°F51.3°F
May 1449.3°F49.5°F46.2°F51.6°F
May 1547.8°F49.8°F47.5°F52.2°F
Day 2025 2024 Min Max
May 1648.2°F50°F47.5°F53.2°F
May 1750°F49.5°F47.5°F53.1°F
May 1851.3°F49.6°F47.7°F53.2°F
May 1952.5°F50.7°F48°F53.8°F
May 2052.2°F48°F48°F55°F
May 2151.4°F49.1°F47.3°F54.7°F
May 2251.6°F51.4°F48.4°F55.4°F
May 2351.4°F52.2°F48.9°F56.3°F
May 2449.5°F53.4°F48.9°F56.3°F
May 2549.1°F54.3°F49.1°F56.5°F
May 2650.2°F54.5°F50.2°F59°F
May 2750°F54°F50°F57.4°F
May 2850.9°F54°F50.9°F58.3°F
May 2952.2°F54.5°F50.9°F59.2°F
May 3053.1°F55.6°F50.2°F59.2°F
May 3151.8°F55.6°F51.3°F61°F
Eastham water temp chart in May

Average water temperature in Eastham in May over a decade

20162017201820192020
49.6°F48.4°F49.1°F48.6°F47.8°F
20212022202320242025
50.7°F49.8°F50.9°F49.8°F49.3°F

Eastham sea state in May

Chart comparing the height of waves in Eastham 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 Eastham in May

Eastham 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
Coast Guard Beach49.8°F43.7°F61°F
Nauset Light Beach49.8°F43.7°F61°F
Nauset Beach49.8°F43.7°F60.8°F
Marconi Beach50.2°F43.9°F61.3°F
Cahoon Hollow Beach50.2°F43.9°F61.3°F
Lecount Hollow Beach50.2°F43.9°F61.3°F
Pleasant Bay50.2°F44.1°F61°F
Orleans51.6°F44.4°F62.2°F
Skaket Beach51.6°F44.4°F62.2°F
First Encounter Beach51.6°F44.4°F62.2°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 Eastham 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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