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Cape Cod Bay water temperature in April

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How warm is Cape Cod Bay water in spring? In April sea water temperature throughout Cape Cod Bay is not yet warm enough for swimming and does not exceed 20°C. Based on average water temperature observations over the past ten years, the warmest sea in Cape Cod Bay in April was 7.1°C (in Barnstable), and the coldest water 6.2°C (in North Truro). To find out the sea temperature today and in the coming days, go to Current sea temperature in Cape Cod Bay

Cape Cod Bay sea surface temp in April

Cape Cod Bay cities and resorts with the values of the average water temperature in April in recent years.
For more detailed information about water temperature, surf forecast, weather and time of sunrise and sunset in any specific area of your interest, just click on a city name. For ease of search, all places are also grouped by the first letter of the name.

 
2025
2024
2023
2022
2021
7.6°C
7.7°C
8.7°C
8.7°C
8.3°C
6.8°C
7.5°C
8°C
8.5°C
7.9°C

Cape Cod Bay water temperature by month

To find out what the water temperature was in Cape Cod Bay any day over a period of the last ten years, select the month

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 16°C
 Average temperature  Maximum temperature

Where can you swim in Cape Cod Bay in April?

Places with the warmest average sea water temperature in Cape Cod Bay in April. Also indicated are the maximum and minimum temperatures in April for these locations based on observations over the past 10 years

AvrMinMax
Barnstable7.1°C2.4°C11.1°C
Grays Beach6.9°C2.3°C10.5°C
Dennis6.9°C2.4°C11.1°C
East Dennis6.9°C2.4°C11.1°C
Corporation Beach6.9°C2.4°C11.1°C

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Our report for 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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