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Water temperature in Oak Harbor (WA) in July

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Is it warm enough to swim in Oak Harbor in July? Average water temperature in Oak Harbor in July is 55°F and therefore is not suitable for comfortable swimming. The warmest sea in Oak Harbor in July is 59.5°F, and the coldest is 50.2°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Oak Harbor

Changes water temperature in Oak Harbor in July 2025, 2024

To get an accurate forecast for the water temperature in Oak Harbor for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Oak Harbor, 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 155.9°F54.7°F50.5°F58.3°F
July 255.9°F54.9°F50.5°F57.9°F
July 355.4°F54.5°F50.2°F58.6°F
July 454.3°F54.5°F50.2°F59°F
July 555.2°F54.1°F50.5°F58.6°F
July 655.4°F55.2°F51.1°F58.1°F
July 755.9°F55.9°F50.9°F58.5°F
July 856.7°F55.6°F51.3°F57.7°F
July 956.5°F55.2°F52.2°F57°F
July 1055.9°F55.6°F52.2°F56.3°F
July 1155.4°F56.1°F52°F56.5°F
July 1256.3°F56.8°F51.8°F57°F
July 1357.7°F57.7°F51.3°F57.7°F
July 1457.4°F58.5°F51.3°F58.5°F
July 1557°F58.8°F51.3°F58.8°F
Day 2025 2024 Min Max
July 1656.8°F59°F51.3°F59°F
July 1757°F58.5°F51.3°F58.5°F
July 1857.9°F59°F51.4°F59°F
July 1957°F58.1°F51.4°F58.1°F
July 2056.7°F58.1°F51.3°F58.6°F
July 2156.1°F58.1°F51.3°F58.3°F
July 2256.7°F57°F51.4°F58.1°F
July 2357°F55.6°F51.8°F58.5°F
July 2457.2°F55.6°F52°F58.8°F
July 2556.1°F54.7°F51.8°F58.8°F
July 2656.1°F55.2°F52°F59.5°F
July 2756.5°F55°F52°F59.2°F
July 2855.9°F55.9°F52.2°F58.8°F
July 2956.1°F55.6°F52.2°F58.6°F
July 3056.8°F55.6°F52°F58.5°F
July 3156.1°F57°F52°F59.2°F
Oak Harbor water temp chart in July

Average water temperature in Oak Harbor in July over a decade

20162017201820192020
56.3°F55.4°F55°F57°F56.1°F
20212022202320242025
57°F55.4°F56.3°F56.3°F56.3°F

Oak Harbor sea state in July

Chart comparing the height of waves in Oak Harbor 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 Oak Harbor in July

Oak Harbor 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
Bowman Bay55.6°F50.5°F60.4°F
Deception Pass55.6°F50.5°F60.4°F
Lopez Island53.6°F50.4°F58.1°F
Port Townsend54.5°F49.6°F59.7°F
San Juan Islands53.2°F50°F57.6°F
Discovery Bay54.1°F49.5°F59.7°F
Olga54.5°F50.7°F60.1°F
Warm Beach58.1°F51.6°F67.6°F
Langley57.7°F51.8°F66.7°F
Sequim54°F49.3°F60.1°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 Oak Harbor 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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