World sea water temperatures

Water temperature in Seal Harbor Beach in August

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Is it warm enough to swim in Seal Harbor Beach in August? Average water temperature in Seal Harbor Beach in August is 57°F and therefore is not suitable for comfortable swimming. The warmest sea in Seal Harbor Beach in August is 65.5°F, and the coldest is 52.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Seal Harbor Beach

Changes water temperature in Seal Harbor Beach in August 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
August 156.1°F55.9°F53.6°F59.7°F
August 256.3°F55.9°F54.1°F59.7°F
August 356.5°F55°F53.2°F61.2°F
August 455.6°F56.8°F52.7°F63.3°F
August 556.1°F55.9°F53.2°F60.1°F
August 656.8°F56.1°F53.6°F60.6°F
August 758.1°F57.2°F53.2°F61.7°F
August 856.5°F56.7°F52.9°F61°F
August 957.4°F56.8°F52.5°F59.4°F
August 1057.7°F57.4°F53.1°F60.6°F
August 1158.6°F55.9°F53.6°F61°F
August 1258.5°F57.7°F53.6°F60.4°F
August 1359°F59°F54.1°F60.8°F
August 1459.7°F58.6°F54°F61.5°F
August 1558.5°F59.9°F54.7°F60.6°F
Day 2025 2024 Min Max
August 1658.5°F61°F53.2°F61°F
August 1757.9°F59.7°F54°F60.3°F
August 1856.1°F59°F53.6°F62.4°F
August 1955.9°F60.4°F53.1°F61.9°F
August 2057°F62.8°F53.1°F62.8°F
August 2156.5°F59.9°F53.6°F60.6°F
August 2257°F57.2°F54°F65.5°F
August 2357.4°F58.5°F54.3°F64.6°F
August 2457.7°F57.9°F53.6°F60.3°F
August 2557.7°F57.2°F54.9°F60.3°F
August 2656.5°F56.7°F54.3°F60.8°F
August 2756.5°F56.8°F54.7°F60.6°F
August 2856.3°F57.4°F54.7°F60.4°F
August 2957°F57.4°F54.3°F59.4°F
August 3056.1°F57.6°F54.3°F60.1°F
August 3157.7°F57.7°F54.1°F61°F
Seal Harbor Beach water temp chart in August

Average water temperature in Seal Harbor Beach in August over a decade

20162017201820192020
57.4°F55.2°F57.6°F56.5°F58.5°F
20212022202320242025
59°F59.5°F57.7°F57.7°F56.7°F

Seal Harbor Beach sea state in August

Chart comparing the height of waves in Seal Harbor Beach in August 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 Seal Harbor Beach in August

Seal Harbor Beach 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 August?

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

AvrMinMax
Southwest Harbor57.4°F52.5°F65.5°F
Islesford56.8°F52.5°F65.5°F
Sand Beach57.2°F52.5°F65.5°F
Seawall57.2°F52.7°F65.5°F
Union River Bay58.8°F53.6°F66.4°F
Sedgwick59.4°F54.1°F67.3°F
Marshall Island58.3°F54.5°F65.5°F
Surry60.6°F54.1°F72.5°F
Stonington59.4°F55.2°F65.3°F
Milbridge57.4°F53.4°F64.9°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 Seal Harbor Beach 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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