World sea water temperatures

Water temperature in Darien (CT) in May

Is it warm enough to swim in Darien in May? Average water temperature in Darien in May is 54.9°F and therefore is not suitable for comfortable swimming. The warmest sea in Darien in May is 65.5°F, and the coldest is 47.3°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Darien

Changes water temperature in Darien in May 2025, 2024

To get an accurate forecast for the water temperature in Darien for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Darien, 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 152.3°F52.3°F47.3°F52.5°F
May 252.2°F54.1°F47.7°F54.1°F
May 351.1°F54.1°F48.4°F54.1°F
May 451.3°F53.8°F49.1°F53.8°F
May 551.4°F53.6°F48.9°F53.6°F
May 652.5°F53.6°F48.9°F53.8°F
May 754°F54°F48.2°F54.3°F
May 853.6°F54.3°F49.1°F55.6°F
May 954.1°F54.1°F50°F55.4°F
May 1055.4°F54.3°F50°F55.8°F
May 1156.1°F54.7°F49.6°F56.5°F
May 1256.8°F54.1°F49.5°F57.2°F
May 1356.5°F54.5°F50°F58.6°F
May 1456.3°F54.7°F50.7°F58.3°F
May 1557.4°F54.9°F51.3°F58.8°F
Day 2025 2024 Min Max
May 1657.4°F55.2°F51.8°F59°F
May 1758.5°F54.9°F52.3°F59°F
May 1859.2°F55.2°F52.7°F59.2°F
May 1959.2°F57.9°F49.1°F59.7°F
May 2059°F57.4°F52°F59.5°F
May 2158.5°F57.4°F53.8°F59.2°F
May 2258.5°F60.3°F54.3°F60.3°F
May 2358.8°F61.3°F54.1°F61.3°F
May 2456.1°F62.8°F55°F62.8°F
May 2556.7°F61.9°F55.6°F61.9°F
May 2658.3°F61°F55.6°F61.2°F
May 2757.2°F61.3°F56.3°F62.2°F
May 2857.6°F62.4°F56.3°F64°F
May 2957.9°F62.4°F56.5°F64.6°F
May 3058.5°F63.3°F57.2°F64.2°F
May 3158.6°F64.2°F56.7°F65.5°F
Darien water temp chart in May

Average water temperature in Darien in May over a decade

20162017201820192020
54.5°F54.3°F54.1°F55°F52.9°F
20212022202320242025
54.9°F54.3°F56.7°F57°F56.1°F

Darien sea state in May

Chart comparing the height of waves in Darien 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 Darien in May

Darien 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
West Beach54.9°F47.5°F65.5°F
Westport54.5°F46.8°F65.3°F
Compo Beach54.5°F46.8°F65.3°F
Sherwood Island54.5°F46.8°F65.3°F
Lloyd Harbor55.2°F47.7°F65.8°F
Centre Island55.2°F47.7°F65.8°F
Oyster Bay Cove55.4°F47.8°F66.2°F
Asharoken55°F46.9°F65.5°F
Cos Cob55.2°F47.8°F65.5°F
Bayville55.6°F48°F66.2°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 Darien 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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