World sea water temperatures

Water temperature in Ilwaco (WA) in May

Is it warm enough to swim in Ilwaco in May? Average water temperature in Ilwaco in May is 54.7°F and therefore is not suitable for comfortable swimming. The warmest sea in Ilwaco in May is 59.5°F, and the coldest is 49.6°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Ilwaco

Changes water temperature in Ilwaco in May 2025, 2024

To get an accurate forecast for the water temperature in Ilwaco for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Ilwaco, 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 153.8°F53.6°F49.6°F55°F
May 254°F53.6°F50°F55.4°F
May 353.8°F54.1°F50.2°F55.4°F
May 454.3°F54°F50.4°F55.2°F
May 554.7°F53.4°F50.5°F54.7°F
May 655°F53.6°F50°F55.2°F
May 754.7°F53.8°F50.4°F56.3°F
May 853.8°F54°F50.4°F55.9°F
May 954.5°F54.5°F50.5°F56.8°F
May 1054.1°F54.7°F50.7°F56.7°F
May 1154°F55.2°F50.7°F56.5°F
May 1255°F55.2°F51.1°F56.3°F
May 1355.8°F55.4°F51.1°F58.1°F
May 1455.6°F56.1°F50.9°F57.2°F
May 1555.4°F56.5°F51.3°F58.5°F
Day 2025 2024 Min Max
May 1655.2°F55.4°F51.1°F58.5°F
May 1755.4°F56.1°F52.3°F59.4°F
May 1855.9°F56.7°F52.5°F59.2°F
May 1955.8°F56.5°F52.5°F59.4°F
May 2055.9°F56.3°F52.7°F58.5°F
May 2156.5°F55.4°F52.9°F58.8°F
May 2256.1°F55.2°F53.1°F58.5°F
May 2356.8°F54.9°F53.2°F58.3°F
May 2457°F55.6°F53.1°F57.9°F
May 2556.5°F54.9°F53.2°F57.7°F
May 2657.7°F54.3°F53.4°F57.9°F
May 2758.8°F55.9°F53.4°F58.8°F
May 2858.8°F56.1°F53.2°F58.8°F
May 2959.2°F56.8°F53.4°F59.2°F
May 3059.5°F57.2°F53.4°F59.5°F
May 3159.5°F56.7°F53.1°F59.5°F
Ilwaco water temp chart in May

Average water temperature in Ilwaco in May over a decade

20162017201820192020
56.1°F54.7°F56.3°F56.3°F56.5°F
20212022202320242025
55.9°F53.8°F56.5°F55.2°F55.9°F

Ilwaco sea state in May

Chart comparing the height of waves in Ilwaco 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 Ilwaco in May

Ilwaco 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
Chinook54.9°F49.6°F60.4°F
Short Sand Beach53.4°F50°F58.6°F
Hoquiam54.3°F49.3°F59.7°F
Westport54°F48.6°F59.2°F
Rockaway Beach53.2°F48°F58.3°F
Barview53.2°F48°F58.3°F
Aberdeen54.5°F49.6°F59.4°F
Ocean Shores53.8°F48.4°F59.5°F
Bay City53.2°F47.7°F58.3°F
Tillamook53.2°F47.7°F58.3°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 Ilwaco 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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