World sea water temperatures

Water temperature in Belfast (ME) in July

Is it warm enough to swim in Belfast in July? Average water temperature in Belfast in July is 60.6°F and therefore is not suitable for comfortable swimming. The warmest sea in Belfast in July is 71.2°F, and the coldest is 53.1°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Belfast

Changes water temperature in Belfast in July 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
July 158.1°F59°F54°F61.9°F
July 260.4°F58.8°F53.8°F62.6°F
July 360.4°F59.9°F54.3°F65.3°F
July 462.2°F61.2°F54.7°F62.8°F
July 562.1°F60.3°F53.6°F62.8°F
July 661°F60.6°F53.1°F63.5°F
July 762.4°F63.7°F53.4°F64.2°F
July 863.5°F62.4°F53.6°F63.5°F
July 961.9°F64°F53.4°F64°F
July 1061.3°F63.1°F54.3°F63.1°F
July 1160.3°F65.1°F54.7°F65.1°F
July 1259.7°F67.1°F54.9°F67.1°F
July 1361.2°F66.9°F55°F66.9°F
July 1459.5°F70°F55.6°F70°F
July 1561°F70.2°F55.6°F70.2°F
Day 2025 2024 Min Max
July 1661.7°F67.8°F55.6°F67.8°F
July 1761.3°F67.6°F55.6°F67.6°F
July 1862.4°F66.6°F55.6°F66.6°F
July 1960.4°F69.8°F55.2°F69.8°F
July 2059.7°F69.3°F55.4°F69.3°F
July 2162.1°F68.4°F55.9°F68.4°F
July 2261°F67.1°F57°F67.3°F
July 2360.8°F65.7°F56.5°F68.7°F
July 2460.4°F63.7°F57.2°F68.9°F
July 2563.9°F63.3°F57.4°F68.9°F
July 2662.2°F62.4°F58.1°F70.7°F
July 2761°F63.5°F57.7°F70.3°F
July 2862.4°F62.2°F58.3°F70.7°F
July 2962.2°F61.3°F58.6°F71.2°F
July 3063.1°F60.8°F58.6°F69.3°F
July 3162.2°F63.5°F58.3°F68.7°F
Belfast water temp chart in July

Average water temperature in Belfast in July over a decade

20162017201820192020
61°F58.5°F61.3°F63.1°F62.6°F
20212022202320242025
61.5°F64.4°F65.5°F64.4°F61.3°F

Belfast sea state in July

Chart comparing the height of waves in Belfast in July 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 Belfast in July

Belfast 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 July?

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

AvrMinMax
Bayside60.3°F53.1°F70.7°F
Searsport60.3°F53.1°F71.1°F
Northport59.9°F52.9°F69.8°F
Castine60.1°F53.1°F70.9°F
Lincolnville60.1°F52.9°F69.1°F
Stockton Springs60.3°F53.1°F70.7°F
Bucksport60.3°F53.2°F70.3°F
Orland60.3°F53.2°F70.3°F
Winterport60.3°F53.2°F70.3°F
Islesboro59.4°F51.8°F68°F

Belfast photo gallery

  • Bounty during its last call to Belfast Maine

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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 Belfast 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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