World sea water temperatures

Water temperature in Oak Harbor (WA) in May

Home > United States > Washington > Oak Harbor

Is it warm enough to swim in Oak Harbor in May? Average water temperature in Oak Harbor in May is 50.9°F and therefore is not suitable for comfortable swimming. The warmest sea in Oak Harbor in May is 55.8°F, and the coldest is 47.5°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 May 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 May.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
May 150.2°F50.7°F47.5°F53.6°F
May 251.1°F50.5°F47.5°F54.3°F
May 350.5°F51.3°F47.5°F55.4°F
May 451.1°F50.9°F47.5°F54.9°F
May 551.4°F50.5°F47.7°F54.3°F
May 652.5°F50.4°F47.7°F54.3°F
May 751.8°F51.4°F47.5°F54.1°F
May 852.5°F50.9°F47.5°F53.8°F
May 952°F50.7°F47.7°F53.8°F
May 1051.6°F51.6°F47.8°F53.4°F
May 1152.9°F52°F47.8°F54°F
May 1252.3°F52.5°F48°F54.7°F
May 1352.2°F52.7°F48°F55.4°F
May 1451.4°F52.3°F48.2°F55.8°F
May 1551.3°F51.8°F48.6°F54.7°F
Day 2025 2024 Min Max
May 1651.3°F52.5°F49.1°F55°F
May 1750.7°F51.4°F49.1°F55.2°F
May 1849.6°F51.8°F49.1°F55.2°F
May 1949.6°F52.7°F49.1°F54.3°F
May 2049.8°F52.3°F49.1°F54.1°F
May 2149.8°F52°F48.7°F54.3°F
May 2250.9°F52.3°F48.9°F53.6°F
May 2352.3°F52.7°F48.7°F54.5°F
May 2452°F52.7°F48.7°F54°F
May 2552.7°F52.3°F49.1°F54°F
May 2653.4°F52°F48.9°F53.4°F
May 2754.3°F52.3°F48.9°F54.3°F
May 2853.4°F52.2°F48.9°F54.7°F
May 2951.8°F51.1°F48.7°F55.4°F
May 3052.3°F52°F48.9°F55.2°F
May 3153.8°F52.7°F49.3°F54.9°F
Oak Harbor water temp chart in May

Average water temperature in Oak Harbor in May over a decade

20162017201820192020
54°F51.8°F52°F53.1°F52.5°F
20212022202320242025
52°F50.7°F52.5°F51.8°F51.6°F

Oak Harbor sea state in May

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

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 May?

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

AvrMinMax
Bowman Bay51.3°F47.5°F56.5°F
Deception Pass51.3°F47.5°F56.5°F
Lopez Island49.8°F46.9°F54.7°F
Port Townsend50.5°F47.5°F55°F
San Juan Islands49.5°F46.8°F53.2°F
Discovery Bay50.2°F47.3°F53.8°F
Olga50.2°F46.9°F55.9°F
Warm Beach52.5°F48°F59.5°F
Langley52.3°F48°F59°F
Sequim50°F47.1°F53.1°F

Washington photo gallery

  • Washington
  • Liberty Bay - Poulsbo
  • Mutiny Bay, Robinson Beach, Whidbey Island
  • Mutiny Bay, Robinson Beach, Whidbey Island

If you have interesting photos of this place, you can upload them here. Photos will be available to all users after verification by the moderator.

Vote for Washington best beach

Current rating: (0 votes cast)

If you know this place (Oak Harbor) and want to leave your comment or rate it, then fill out the following form.

Your rating for this place:

Does this place have a "Blue Flag" award [1], are there rip currents and what type of beach is it, sand or pebble:

Is the beach a dog-friendly place, child friendly or a nudist beach?


Your comments for this place (water quality, crowds, facilities, activities, lifeguards, service etc.):



[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.

Get widget or API for your website

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.

Contact us: admin@seatemperature.info
privacy policy