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Water temperature in Orcas Island (WA) in August

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Is it warm enough to swim in Orcas Island in August? Average water temperature in Orcas Island in August is 56.8°F and therefore is not suitable for comfortable swimming. The warmest sea in Orcas Island in August is 63.5°F, and the coldest is 50.9°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Orcas Island

Changes water temperature in Orcas Island in August 2025, 2024

To get an accurate forecast for the water temperature in Orcas Island for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Orcas Island, 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 154.3°F54°F52.5°F62.6°F
August 254.5°F54.1°F52.5°F61.3°F
August 353.8°F55.4°F52°F61.7°F
August 455°F54.7°F52.2°F62.2°F
August 554.5°F53.6°F52.5°F63°F
August 655°F53.2°F52.7°F61.5°F
August 755.2°F53.6°F52.2°F60.6°F
August 854.1°F53.8°F51.3°F60.8°F
August 954.5°F52.9°F50.9°F61.2°F
August 1053.8°F54.5°F51.6°F61.5°F
August 1153.1°F55.9°F52.2°F61.9°F
August 1254.9°F57.2°F53.4°F62.6°F
August 1357°F57.4°F53.4°F63.5°F
August 1458.6°F56.3°F54°F62.8°F
August 1558.6°F55.6°F54.5°F61.7°F
Day 2025 2024 Min Max
August 1658.6°F54.7°F54°F61.7°F
August 1758.5°F55.2°F53.2°F62.1°F
August 1858.3°F54.5°F54.5°F61.7°F
August 1957.2°F54.9°F54.9°F61°F
August 2056.1°F56.1°F54.5°F60.8°F
August 2156.1°F55.9°F54.5°F60.4°F
August 2255.9°F56.1°F53.8°F60.4°F
August 2355.2°F55.9°F53.1°F60.1°F
August 2455.6°F55°F53.2°F59.7°F
August 2556.8°F53.6°F53.6°F60.1°F
August 2657.4°F53.8°F53.1°F60.3°F
August 2757.9°F53.1°F53.1°F60.4°F
August 2857.6°F52.5°F52.5°F59.7°F
August 2956.3°F54.5°F53.2°F59.4°F
August 3056.7°F55.4°F53.1°F59°F
August 3156.7°F56.3°F52.7°F59°F
Orcas Island water temp chart in August

Average water temperature in Orcas Island in August over a decade

20162017201820192020
60.8°F56.7°F57.6°F59.4°F59.9°F
20212022202320242025
59.2°F57.6°F55.9°F54.9°F54.5°F

Orcas Island sea state in August

Chart comparing the height of waves in Orcas Island 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 Orcas Island in August

Orcas Island 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
Roche Harbor55°F51.1°F61.3°F
Lummi Island57.2°F50°F64.4°F
Pender Island57.7°F52.2°F64°F
Anacortes56.1°F51.4°F62.4°F
Boundary Bay61.7°F54.7°F68.5°F
Crescent Beach61.5°F54.5°F68.4°F
Centennial Beach62.1°F55°F68.9°F
Sidney55.9°F52.2°F63.3°F
Tsawwassen62.2°F55.2°F69.3°F
Cordova Bay54.1°F50.7°F59.9°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 Orcas Island 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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