World sea water temperatures

Water temperature in Southport (ME) in April

Is it warm enough to swim in Southport in April? Average water temperature in Southport in April is 41.4°F and therefore is not suitable for comfortable swimming. The warmest sea in Southport in April is 47.3°F, and the coldest is 36.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Southport

Changes water temperature in Southport in April 2025, 2024

To get an accurate forecast for the water temperature in Southport for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Southport, 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 138.3°F41.4°F36.7°F41.4°F
April 237.2°F41.5°F36.9°F41.5°F
April 337.2°F41.2°F36.9°F41.5°F
April 438.1°F41°F37°F41.5°F
April 538.3°F40.8°F37°F42.4°F
April 638.5°F40.6°F37.4°F42.3°F
April 738.7°F39.6°F36.7°F42.3°F
April 838.8°F40.3°F37°F43.5°F
April 938.8°F40.8°F37.2°F43.5°F
April 1039°F41°F37.4°F43°F
April 1138.5°F40.6°F37.4°F43.2°F
April 1238.7°F40.8°F37.9°F43.5°F
April 1338.8°F41.9°F38.3°F43.5°F
April 1440.5°F42.4°F38.8°F44.6°F
April 1539.9°F43.3°F38.3°F44.2°F
Day 2025 2024 Min Max
April 1639.6°F44.2°F38.5°F46.8°F
April 1740.1°F43.3°F38.5°F47.3°F
April 1840.6°F44.1°F38.3°F45.1°F
April 1940.8°F43.9°F38.5°F45.5°F
April 2040.6°F43.9°F38.5°F46°F
April 2140.5°F44.4°F39.4°F45.7°F
April 2240.8°F44.4°F39.9°F45.1°F
April 2343°F44.8°F40.1°F45.5°F
April 2441.7°F44.1°F40.3°F46.8°F
April 2541.9°F43.9°F40.8°F46.6°F
April 2642.1°F43.3°F40.8°F45.5°F
April 2742.6°F43.3°F41.2°F45.7°F
April 2843.3°F43.3°F41.2°F45.3°F
April 2943.2°F45°F41.4°F46°F
April 3043.9°F45.7°F41.2°F45.7°F
Southport water temp chart in April

Average water temperature in Southport in April over a decade

20162017201820192020
41.5°F41.2°F41°F39.9°F41.5°F
20212022202320242025
42.8°F41.9°F43.2°F42.6°F40.1°F

Southport sea state in April

Chart comparing the height of waves in Southport 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 Southport in April

Southport 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
Christmas Cove41.2°F36.7°F46.8°F
Bailey Island41.9°F36.7°F48.6°F
Harpswell Center42.1°F36.7°F48.4°F
Freeport42.1°F36.7°F48.4°F
Cushing40.8°F36°F46.6°F
Casco Bay41.9°F36.9°F48.9°F
Saint George40.8°F35.8°F46.4°F
Yarmouth42.1°F36.5°F48.9°F
South Thomaston40.8°F35.4°F46.6°F
Gulf of Maine42.1°F36.9°F49.3°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 Southport 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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