World sea water temperatures

Water temperature in Lewis Bay (MA) in May

Is it warm enough to swim in Lewis Bay in May? Average water temperature in Lewis Bay in May is 53.1°F and therefore is not suitable for comfortable swimming. The warmest sea in Lewis Bay in May is 62.6°F, and the coldest is 45.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Lewis Bay

Changes water temperature in Lewis Bay in May 2025, 2024

To get an accurate forecast for the water temperature in Lewis Bay for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Lewis Bay, 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 152.5°F50.7°F45.5°F52.5°F
May 252.9°F50.4°F46.6°F52.9°F
May 353.2°F50.7°F46.8°F53.2°F
May 451.6°F51.3°F46.2°F52.5°F
May 552.2°F50.5°F46.9°F52.5°F
May 652.5°F50.5°F47.1°F53.1°F
May 755°F50.2°F46.6°F55°F
May 855.2°F50.9°F47.5°F55.2°F
May 954.9°F52.2°F48.4°F54.9°F
May 1056.5°F53.6°F48°F56.5°F
May 1156.8°F52.9°F47.1°F56.8°F
May 1256.7°F51.8°F47.7°F56.7°F
May 1354.3°F53.8°F47.7°F55.2°F
May 1456.1°F53.2°F47.5°F56.5°F
May 1555.9°F54°F49.1°F56.8°F
Day 2025 2024 Min Max
May 1656.3°F53.6°F49.6°F56.7°F
May 1758.1°F53.4°F48.9°F58.1°F
May 1859.7°F53.6°F49.6°F59.7°F
May 1959.2°F54°F49.6°F59.2°F
May 2057.2°F53.1°F49.6°F58.1°F
May 2157.2°F52.7°F50.2°F60.1°F
May 2255°F55.2°F50.9°F58.6°F
May 2353.2°F57.2°F51.4°F59.5°F
May 2454.1°F57.6°F51.6°F61°F
May 2553.4°F58.6°F52.3°F60.3°F
May 2655°F57.4°F52.9°F60.6°F
May 2754.9°F57.9°F53.1°F61.5°F
May 2855°F59.9°F53.6°F62.4°F
May 2955.4°F62.6°F53.8°F62.6°F
May 3053.1°F60.1°F53.1°F61.5°F
May 3156.3°F61.9°F54°F62.6°F
Lewis Bay water temp chart in May

Average water temperature in Lewis Bay in May over a decade

20162017201820192020
52.3°F51.4°F52.5°F52.9°F52°F
20212022202320242025
55.8°F53.2°F56.3°F54.3°F55.2°F

Lewis Bay sea state in May

Chart comparing the height of waves in Lewis Bay 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 Lewis Bay in May

Lewis Bay 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
Colonial Acres Beach53.1°F45.5°F62.6°F
Sea Street Beach52°F45°F61.9°F
Dowses Beach53.6°F46°F63.7°F
Covell's Beach53.6°F46°F63.7°F
Harwich Port52.2°F45°F61.9°F
Bank Street Beach51.3°F44.8°F61.5°F
Barnstable53.2°F45.3°F63.7°F
Osterville54°F46.6°F63.9°F
Red River Beach50.5°F44.4°F61.2°F
East Dennis52.5°F45°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 Lewis Bay 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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