World sea water temperatures

Water temperature in Morris Island (MA) in May

Is it warm enough to swim in Morris Island in May? Average water temperature in Morris Island in May is 49.5°F and therefore is not suitable for comfortable swimming. The warmest sea in Morris Island in May is 60.4°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 Morris Island

Changes water temperature in Morris Island in May 2025, 2024

To get an accurate forecast for the water temperature in Morris Island for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Morris Island, 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 144.6°F45.5°F44.1°F48.9°F
May 245.1°F45.5°F44.2°F49.3°F
May 345.5°F46.2°F43.7°F47.8°F
May 445.5°F45.7°F44.2°F48.4°F
May 546.4°F45.5°F44.2°F48.6°F
May 646.9°F45.9°F44.2°F49.5°F
May 745.9°F45.3°F45.1°F49.6°F
May 846.9°F46.4°F45.1°F49.6°F
May 946.4°F46.8°F45.5°F50.2°F
May 1046.4°F46.2°F45.7°F49.6°F
May 1147.7°F47.1°F45.1°F50.4°F
May 1248.6°F46.4°F45.3°F50.7°F
May 1346.6°F47.8°F45.3°F50.9°F
May 1448.7°F48.2°F45.9°F51.1°F
May 1548.9°F48.9°F47.3°F52°F
Day 2025 2024 Min Max
May 1649.6°F49.1°F46.4°F53.6°F
May 1749.8°F48.6°F46.9°F53.4°F
May 1849.3°F49.5°F47.1°F53.6°F
May 1949.8°F50.2°F46.4°F53.8°F
May 2050.4°F47.1°F47.1°F54.1°F
May 2150°F48.6°F47.3°F54.5°F
May 2251.1°F50.9°F48.6°F55.2°F
May 2351.1°F51.4°F47.8°F55.9°F
May 2448.9°F50.4°F47.8°F55.9°F
May 2549.1°F49.8°F49.1°F56.3°F
May 2648.9°F52.5°F48.9°F58.5°F
May 2748.9°F53.8°F48.9°F57.2°F
May 2850°F51.6°F50°F58.1°F
May 2952.3°F51.8°F50.5°F59.4°F
May 3052.7°F52.9°F50.5°F59.2°F
May 3150.2°F53.6°F49.3°F60.4°F
Morris Island water temp chart in May

Average water temperature in Morris Island in May over a decade

20162017201820192020
49.8°F48.7°F49.1°F47.8°F47.3°F
20212022202320242025
49.6°F48.6°F50°F48.7°F48.4°F

Morris Island sea state in May

Chart comparing the height of waves in Morris Island 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 Morris Island in May

Morris Island 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
Pleasant Bay50.2°F44.1°F61°F
Bank Street Beach51.3°F44.8°F61.5°F
Dennis Port52°F45°F61.9°F
Sea Street Beach52°F45°F61.9°F
Nauset Beach49.8°F43.7°F60.8°F
Harwich Port52.2°F45°F61.9°F
Bass River52.5°F45.3°F62.2°F
Smugglers Beach52.5°F45.3°F62.2°F
West Dennis52.7°F45.1°F63.1°F
Eastham49.8°F43.7°F61°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 Morris Island 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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