World sea water temperatures

Water temperature in Dennis (MA) in April

Is it warm enough to swim in Dennis in April? Average water temperature in Dennis in April is 44.4°F and therefore is not suitable for comfortable swimming. The warmest sea in Dennis in April is 52°F, and the coldest is 36.3°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Dennis

Changes water temperature in Dennis in April 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
April 143.7°F42.1°F36.3°F44.4°F
April 242.4°F42.8°F36.9°F44.4°F
April 342.3°F42.3°F37.2°F45°F
April 442.6°F41.9°F38.3°F44.8°F
April 544.1°F41.9°F38.5°F44.6°F
April 643.3°F41.7°F38.5°F44.6°F
April 742.6°F42.6°F39°F45.1°F
April 843.7°F42.6°F39.6°F47.1°F
April 943.9°F43.5°F39.6°F47.1°F
April 1042.6°F42.4°F40.1°F47.3°F
April 1143.2°F43°F40.3°F47.5°F
April 1242.6°F46.9°F40.5°F47.3°F
April 1342.1°F45.9°F41°F48.4°F
April 1442.8°F45.3°F41.2°F47.7°F
April 1542.8°F44.6°F41.2°F49.6°F
Day 2025 2024 Min Max
April 1645.1°F47.8°F41°F49.5°F
April 1745°F48.7°F41°F50.4°F
April 1845°F46.9°F41.5°F49.1°F
April 1944.4°F46.2°F41.5°F50.2°F
April 2046.6°F47.3°F41.4°F50.2°F
April 2147.1°F48°F42.4°F49.8°F
April 2245.9°F47.8°F43°F49.6°F
April 2348.7°F48.2°F43.3°F49.6°F
April 2446°F49.3°F43.9°F49.3°F
April 2546.2°F48.4°F43.9°F49.1°F
April 2645.7°F49.3°F44.1°F50.2°F
April 2746.9°F48.4°F44.8°F52°F
April 2850.2°F47.1°F44.6°F50.9°F
April 2947.5°F49.3°F44.2°F50.2°F
April 3047.7°F48.2°F44.2°F50.9°F
Dennis water temp chart in April

Average water temperature in Dennis in April over a decade

20162017201820192020
44.6°F42.4°F42.4°F45.5°F44.8°F
20212022202320242025
46.6°F47.7°F46.9°F45.7°F44.8°F

Dennis sea state in April

Chart comparing the height of waves in Dennis in April 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 Dennis in April

Dennis 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 April?

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

AvrMinMax
Harborview Beach44.4°F36.3°F52°F
Chapin Beach44.4°F36.1°F50.9°F
Orleans43.9°F36.7°F50.9°F
Skaket Beach43.9°F36.7°F50.9°F
First Encounter Beach43.9°F36.7°F50.9°F
Crosby Landing Beach43.9°F36.7°F50.9°F
Linnell Landing Beach43.9°F36.7°F50.9°F
Ellis Landing beach43.9°F36.7°F50.9°F
Rock Harbor Beach43.9°F36.7°F50.9°F
Thumpertown Beach43.9°F36.7°F50.9°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 Dennis 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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