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Water temperature in Anacortes (WA) in April

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Is it warm enough to swim in Anacortes in April? Average water temperature in Anacortes in April is 48°F and therefore is not suitable for comfortable swimming. The warmest sea in Anacortes in April is 54.7°F, and the coldest is 45.1°F. Average high air temperature in Anacortes in April is 58°F, and average low temperature is 42°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 April 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 April.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
April 147.1°F48.6°F45.3°F50.2°F
April 247.7°F49.5°F45.3°F50.5°F
April 347.8°F49.3°F45.1°F50.5°F
April 447.7°F49.1°F45.1°F50.2°F
April 547.7°F48.9°F45.1°F50°F
April 648.7°F48.7°F45.5°F49.8°F
April 748.7°F48.6°F45.5°F50.4°F
April 848.6°F48.6°F45.5°F50.2°F
April 948°F48.4°F45.7°F50.4°F
April 1048°F47.8°F45.9°F51.4°F
April 1148°F47.8°F45.9°F51.8°F
April 1248°F48.2°F45.7°F51.6°F
April 1348.7°F48.6°F45.7°F51.3°F
April 1449.1°F48.6°F45.9°F51.3°F
April 1549.5°F48.7°F46°F51.1°F
Day 2025 2024 Min Max
April 1649.1°F48.7°F46.2°F51.4°F
April 1749.1°F48.6°F46.4°F51.8°F
April 1849.1°F49.3°F46.4°F52.3°F
April 1949.3°F49.1°F45.1°F52.9°F
April 2048.9°F50.2°F45.9°F53.4°F
April 2149.3°F49.5°F46°F53.6°F
April 2248.9°F49.5°F46.2°F54.7°F
April 2349.1°F50.4°F46.2°F54.3°F
April 2450°F50.4°F46.2°F54.1°F
April 2550.7°F50.2°F46°F53.8°F
April 2651.8°F49.6°F46.4°F53.8°F
April 2751.3°F49.6°F46.6°F53.8°F
April 2850.2°F49.6°F46.9°F53.8°F
April 2950°F49.6°F46.9°F54°F
April 3049.1°F49.5°F46.9°F54°F
Anacortes water temp chart in April

Average water temperature in Anacortes in April over a decade

20162017201820192020
52.2°F48.6°F48.2°F49.5°F48.4°F
20212022202320242025
48.4°F47.7°F47.3°F49.1°F48.9°F

Anacortes sea state in April

Chart comparing the height of waves in Anacortes in April 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 April

Weather and climate in Anacortes in April

This data display average monthly climate indicators in Anacortes in April 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 temperature58°F
  • Average LOW temperature42°F
  • Average rainfall days12 days
  • Average rainfall46mm/1.8''
  • Average daylight14h
  • Average sunshine6h
  • Average UV index4

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 April?

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

AvrMinMax
Olga47.5°F44.8°F53.6°F
Lopez Island47.5°F45.1°F53.1°F
Bowman Bay48.2°F45.3°F54.3°F
Deception Pass48.2°F45.3°F54.3°F
Lummi Island48°F44.6°F55.2°F
Oak Harbor48.2°F45.3°F54°F
San Juan Islands47.5°F45.1°F52°F
Bellingham48.4°F44.8°F55.6°F
Friday Harbor47.3°F44.8°F52.3°F
Eastsound47.7°F44.4°F53.6°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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