World sea water temperatures

Water temperature in Dover (DE) in June

Is it warm enough to swim in Dover in June? Average water temperature in Dover in June is 72.1°F and therefore suitable for comfortable swimming. The warmest sea in Dover in June is 81.3°F, and the coldest is 64°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Dover

Changes water temperature in Dover in June 2025, 2024

To get an accurate forecast for the water temperature in Dover for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Dover, 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 164°F68.7°F64°F72.9°F
June 264°F69.4°F64°F73.4°F
June 364.6°F71.8°F64.4°F71.8°F
June 468.2°F71.6°F66°F72.9°F
June 566.4°F71.1°F66.2°F71.8°F
June 668.9°F71.2°F66.2°F72.9°F
June 768.4°F72.7°F66.2°F73.6°F
June 869.6°F72.3°F66.7°F75.9°F
June 969.3°F72.1°F66.2°F75.6°F
June 1070.2°F72.1°F68.4°F75.6°F
June 1172°F72.5°F68.4°F74.8°F
June 1272.5°F73°F68.7°F74.7°F
June 1370.9°F73.2°F68.7°F74.5°F
June 1470.7°F74.3°F68.9°F74.3°F
June 1570.7°F74.7°F69.1°F75.2°F
Day 2025 2024 Min Max
June 1670°F74.8°F68.7°F74.8°F
June 1769.8°F75.4°F69.3°F75.4°F
June 1871.6°F75.7°F69.8°F75.7°F
June 1973.4°F76.1°F69.8°F76.1°F
June 2074.8°F76.1°F70.5°F76.1°F
June 2174.5°F77.4°F70.7°F77.4°F
June 22 78.3°F71.1°F78.3°F
June 2376.8°F78.6°F71.2°F78.6°F
June 2478.8°F77.5°F71.4°F78.8°F
June 2580.8°F76.6°F72°F80.8°F
June 2681.3°F76.5°F71.6°F81.3°F
June 2780.8°F77.7°F73.8°F80.8°F
June 2880.2°F76.8°F72.7°F80.2°F
June 2979°F75.7°F73.9°F79°F
June 3078.6°F77.9°F74.1°F80.4°F
Dover water temp chart in June

Average water temperature in Dover in June over a decade

20162017201820192020
71.6°F71.8°F72.3°F73°F72.5°F
20212022202320242025
73°F72.3°F70.3°F74.5°F72.5°F

Dover sea state in June

Chart comparing the height of waves in Dover 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 Dover in June

Dover 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
Villas70.2°F61.5°F79.9°F
Wildwood Crest67.6°F59.2°F76.3°F
Lewes69.8°F61.2°F81.9°F
Cape May67.5°F59°F76.5°F
Diamond Beach67.3°F58.6°F76.3°F
Wildwood67.3°F58.8°F76.1°F
Rehoboth Beach68.5°F60.8°F77.7°F
Dewey beach68.5°F60.8°F77.7°F
Stone Harbor67.3°F59.2°F75.7°F
Long Neck69.6°F61.3°F81°F

Delaware photo gallery

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  • rural Delaware Bay, middle section, Nantuxent Cove, picture taken at Money Island NJ

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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 Dover 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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