World sea water temperatures

Water temperature in Old Lyme (CT) in June

Is it warm enough to swim in Old Lyme in June? Average water temperature in Old Lyme in June is 61.3°F and therefore is not suitable for comfortable swimming. The warmest sea in Old Lyme in June is 69.8°F, and the coldest is 54.9°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Old Lyme

Changes water temperature in Old Lyme in June 2025, 2024

To get an accurate forecast for the water temperature in Old Lyme for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Old Lyme, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of June.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
June 155°F59°F54.9°F62.6°F
June 256.8°F58.6°F55.2°F61°F
June 357.2°F59.4°F55°F61.9°F
June 458.6°F60.1°F55°F64.8°F
June 559°F61.5°F55°F63.1°F
June 661.3°F62.1°F55.6°F62.4°F
June 761.2°F61.5°F55.8°F62.4°F
June 861.7°F59.9°F55.9°F63.9°F
June 959.9°F61.2°F56.7°F63.9°F
June 1060.1°F61°F57°F65.3°F
June 1161°F62.2°F57.2°F65.3°F
June 1260.8°F62.4°F57.9°F65.3°F
June 1360.6°F62.6°F58.3°F65.8°F
June 1460.3°F63.9°F58.1°F65.7°F
June 1560.8°F63.5°F58.3°F64.8°F
Day 2025 2024 Min Max
June 1660.1°F63.1°F58.6°F64.8°F
June 1760.6°F63.7°F59°F64.9°F
June 1860.8°F64.4°F59°F64.4°F
June 1963.9°F65.3°F60.1°F65.3°F
June 2061.7°F66°F60.6°F66°F
June 2161.2°F66.7°F60.6°F66.7°F
June 22 66.7°F59.7°F68.2°F
June 2363°F67.5°F59.7°F68.9°F
June 2463.5°F65.7°F60.4°F68.9°F
June 2564°F64°F62.1°F68°F
June 2664.6°F63.3°F62.6°F67.5°F
June 2763.5°F64°F62.4°F68.5°F
June 2864.9°F63.7°F62.4°F69.8°F
June 2964.9°F64.6°F62.6°F69.3°F
June 3064.2°F64.8°F63°F69.1°F
Old Lyme water temp chart in June

Average water temperature in Old Lyme in June over a decade

20162017201820192020
60.6°F60.4°F59.9°F60.3°F61.5°F
20212022202320242025
61.2°F62.1°F61°F63.1°F61.2°F

Old Lyme sea state in June

Chart comparing the height of waves in Old Lyme in June 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 Old Lyme in June

Old Lyme 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 June?

Want to know where the water temperature in June 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 June. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Rocky Neck60.8°F54.5°F69.4°F
Plum Island61.2°F54.5°F69.8°F
Hammonasset Beach62.6°F55.2°F70.9°F
Orient Point62.1°F54.9°F70°F
Southold63.7°F55.6°F74.7°F
Gardiners Bay62.2°F54.9°F70.2°F
Noank60.3°F53.4°F69.1°F
Sag Harbor62.8°F55.4°F71.4°F
Peconic Bay62.8°F55.4°F71.4°F
Noyack63.1°F55.6°F73.2°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 Old Lyme 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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