World sea water temperatures

Water temperature in Casco Bay (ME) in June

Is it warm enough to swim in Casco Bay in June? Average water temperature in Casco Bay in June is 56.1°F and therefore is not suitable for comfortable swimming. The warmest sea in Casco Bay in June is 64°F, and the coldest is 48.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Casco Bay

Changes water temperature in Casco Bay in June 2025, 2024

To get an accurate forecast for the water temperature in Casco Bay for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Casco Bay, 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 149.6°F54.1°F49.3°F56.8°F
June 249.3°F54.7°F49.3°F55.9°F
June 349.6°F55.4°F49.6°F55.9°F
June 450.9°F55.8°F48.7°F56.5°F
June 552.2°F56.1°F48.9°F58.1°F
June 654.3°F55.9°F50°F58.8°F
June 755.8°F56.1°F50°F56.8°F
June 855.6°F56.3°F50.5°F57.9°F
June 956.8°F55.4°F51.3°F59.4°F
June 1056.5°F55.9°F52.3°F58.3°F
June 1156.3°F55.8°F52.7°F57.4°F
June 1257.2°F56.5°F53.2°F57.2°F
June 1357.2°F56.5°F52.9°F60.1°F
June 1457.9°F58.8°F51.6°F60.4°F
June 1557.4°F58.1°F51.8°F60.4°F
Day 2025 2024 Min Max
June 1659°F57.6°F53.1°F59.7°F
June 1758.1°F57.6°F53.6°F58.5°F
June 1858.1°F57.2°F53.2°F58.5°F
June 1959.5°F59.4°F54°F60.3°F
June 2059°F60.4°F55.2°F62.6°F
June 2158.3°F61.5°F55°F63.3°F
June 22 61.3°F54.7°F63.7°F
June 2358.5°F60.6°F53.8°F63.7°F
June 2460.4°F60.6°F54.3°F64°F
June 2560.6°F59.4°F55.9°F63.3°F
June 2661°F60.3°F56.3°F62.4°F
June 2759.9°F58.3°F56.3°F61.3°F
June 2859.4°F57.4°F55.2°F62.8°F
June 2959.7°F57.2°F55°F63.1°F
June 3061.2°F54.7°F54.7°F62.2°F
Casco Bay water temp chart in June

Average water temperature in Casco Bay in June over a decade

20162017201820192020
56.5°F54.1°F55°F54.7°F57.2°F
20212022202320242025
57.4°F57.2°F56.8°F57.6°F56.8°F

Casco Bay sea state in June

Chart comparing the height of waves in Casco Bay 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 Casco Bay in June

Casco Bay 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
Bailey Island56.1°F48.9°F64.2°F
Peaks Island56.3°F48.6°F64.8°F
Yarmouth56.7°F49.1°F64.9°F
Portland56.5°F48.9°F64.9°F
Scarborough56.8°F49.3°F65.5°F
Georgetown54.9°F48.2°F61.9°F
Pine Point57°F49.5°F65.7°F
Boothbay Harbor54.7°F48.4°F61.5°F
North Bath55.2°F48.7°F62.1°F
Old Orchard Beach57°F48.7°F65.8°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 Casco Bay 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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