World sea water temperatures

Water temperature in Guilford (CT) in May

Is it warm enough to swim in Guilford in May? Average water temperature in Guilford in May is 53.1°F and therefore is not suitable for comfortable swimming. The warmest sea in Guilford in May is 64.8°F, and the coldest is 44.6°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Guilford

Changes water temperature in Guilford in May 2025, 2024

To get an accurate forecast for the water temperature in Guilford for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Guilford, 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 148.2°F50.7°F44.6°F51.4°F
May 250°F51.6°F45°F51.6°F
May 350.2°F51.6°F45.3°F51.6°F
May 448.7°F51.3°F45.9°F52.2°F
May 548.9°F51.1°F46.6°F52°F
May 652.2°F51.3°F45.7°F52.9°F
May 753.1°F50.9°F46.2°F53.1°F
May 852.7°F52.5°F47.3°F52.9°F
May 954.9°F52°F48.4°F54.9°F
May 1051.8°F52°F48.4°F54°F
May 1152.5°F51.6°F48.4°F54.9°F
May 1252.2°F54°F48.9°F54.9°F
May 1351.4°F54.1°F48.7°F55.2°F
May 1452.2°F53.6°F49.3°F55.8°F
May 1554.1°F53.8°F49.6°F56.3°F
Day 2025 2024 Min Max
May 1654.3°F54.1°F49.3°F58.3°F
May 1754.1°F54.7°F50°F58.1°F
May 1855.4°F54.7°F50.7°F57.7°F
May 1954°F55.4°F46°F58.5°F
May 2053.4°F54.9°F49.1°F58.3°F
May 2153.6°F56.7°F50.5°F57.6°F
May 2254.3°F58.1°F50.9°F59.2°F
May 2353.6°F58.3°F51.6°F58.3°F
May 2454°F58.1°F52°F58.3°F
May 2554°F58.6°F53.1°F58.6°F
May 2653.2°F59.9°F53.2°F59.9°F
May 2754.3°F59°F54°F61.3°F
May 2855°F61°F54.7°F63.3°F
May 2955.6°F60.6°F54.5°F64.4°F
May 3055.8°F59.5°F55.6°F64°F
May 3156.1°F60.8°F56.1°F64.8°F
Guilford water temp chart in May

Average water temperature in Guilford in May over a decade

20162017201820192020
53.2°F52.5°F52.3°F52.5°F51.8°F
20212022202320242025
53.6°F53.8°F54.7°F55°F53.1°F

Guilford sea state in May

Chart comparing the height of waves in Guilford 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 Guilford in May

Guilford 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
Stony Creek Beach53.2°F44.4°F64.9°F
Hammonasset Beach52.7°F45.1°F64.2°F
Mattituck53.8°F45.5°F64.9°F
Breakwater Beach53.8°F45.7°F65.1°F
Southold53.6°F45.7°F64.2°F
New Haven54°F44.6°F65.1°F
Greenport53.2°F45.7°F63.9°F
Shelter Island Heights53.2°F45.7°F63.9°F
Shoreham53.8°F45.3°F65.3°F
Woodmont54°F44.2°F65.1°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 Guilford 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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