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Water temperature in Anacortes (WA) in August

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Is it warm enough to swim in Anacortes in August? Average water temperature in Anacortes in August is 56.1°F and therefore is not suitable for comfortable swimming. The warmest sea in Anacortes in August is 62.4°F, and the coldest is 51.4°F. Average high air temperature in Anacortes in August is 72°F, and average low temperature is 52°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Anacortes

Changes water temperature in Anacortes in August 2025, 2024

To get an accurate forecast for the water temperature in Anacortes for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Anacortes, 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 156.3°F56.1°F53.1°F60.1°F
August 257.4°F57.6°F52.7°F59.4°F
August 357°F57.4°F53.1°F59.5°F
August 457°F56.8°F53.4°F59.9°F
August 557.4°F56.3°F53.6°F59.7°F
August 657.4°F55.2°F53.6°F59.5°F
August 756.7°F55.2°F53.8°F58.8°F
August 855.4°F56.5°F53.2°F59.9°F
August 955.9°F56.1°F51.4°F59.7°F
August 1055.8°F56.3°F53.6°F60.1°F
August 1156.3°F56.3°F53.6°F61°F
August 1256.1°F56.3°F54°F61.9°F
August 1356.3°F56.3°F53.8°F62.4°F
August 1457°F55.8°F53.8°F61.7°F
August 1557°F55.8°F53.8°F61°F
Day 2025 2024 Min Max
August 1658.3°F55.9°F53.6°F60.8°F
August 1757.9°F55.6°F53.8°F61.3°F
August 1859°F55.9°F53.6°F61°F
August 1959.4°F55°F53.8°F60.3°F
August 2058.1°F55.4°F54.1°F60.1°F
August 2157°F55.6°F54.1°F59.9°F
August 2255.6°F56.5°F53.8°F59.2°F
August 2355.2°F56.1°F54°F59.4°F
August 2455.8°F55.8°F53.8°F59°F
August 2556.3°F55.8°F53.8°F59°F
August 2657.2°F56.3°F53.6°F59.4°F
August 2757°F55°F53.4°F59.4°F
August 2857°F54.5°F53.8°F59°F
August 2956.8°F54.5°F52.7°F58.6°F
August 3056.1°F54.7°F52.7°F58.5°F
August 3156.7°F55.9°F52.9°F57.9°F
Anacortes water temp chart in August

Average water temperature in Anacortes in August over a decade

20162017201820192020
59.9°F56.3°F56.8°F57.6°F59°F
20212022202320242025
56.8°F56.7°F56.7°F55.9°F56.7°F

Anacortes sea state in August

Chart comparing the height of waves in Anacortes 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 Anacortes in August

Weather and climate in Anacortes in August

This data display average monthly climate indicators in Anacortes in August based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature72°F
  • Average LOW temperature52°F
  • Average rainfall days5 days
  • Average rainfall25mm/1''
  • Average daylight14h
  • Average sunshine9h
  • Average UV index6

Anacortes 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
Olga55°F50.5°F61.3°F
Lopez Island54.1°F50.2°F59.5°F
Bowman Bay56.1°F52°F61.3°F
Deception Pass56.1°F52°F61.3°F
Lummi Island57.2°F50°F64.4°F
Oak Harbor55.6°F51.4°F60.1°F
San Juan Islands53.6°F50.2°F58.1°F
Bellingham58.8°F51.4°F66.2°F
Friday Harbor54.3°F50.9°F59.9°F
Eastsound56.8°F50.9°F63.5°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 Anacortes 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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