World sea water temperatures

Water temperature in Eureka (CA) in April

Is it warm enough to swim in Eureka in April? Average water temperature in Eureka in April is 50.9°F and therefore is not suitable for comfortable swimming. The warmest sea in Eureka in April is 56.3°F, and the coldest is 46.9°F. Average high air temperature in Eureka in April is 58°F, and average low temperature is 44°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Eureka

Changes water temperature in Eureka in April 2025, 2024

To get an accurate forecast for the water temperature in Eureka for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Eureka, 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 151.3°F52.5°F47.8°F54.1°F
April 251.6°F52.7°F48.2°F54.1°F
April 351.6°F52.5°F47.7°F54.3°F
April 451.4°F52.5°F47.3°F54.1°F
April 552°F51.1°F47.5°F53.8°F
April 652.2°F51.1°F48.2°F54.1°F
April 752°F51.4°F48.2°F54.5°F
April 852°F51.4°F48.2°F54.5°F
April 951.8°F50.7°F47.8°F54.7°F
April 1052.5°F50.9°F47.5°F54.5°F
April 1152.9°F51.3°F47.8°F54.1°F
April 1251.4°F51.6°F47.3°F54.3°F
April 1349.8°F51.8°F47.5°F54.1°F
April 1450°F51.8°F48.2°F54°F
April 1550.9°F51.3°F47.7°F53.4°F
Day 2025 2024 Min Max
April 1651.1°F50.5°F47.8°F53.8°F
April 1751.4°F50.7°F48°F54.1°F
April 1851.8°F50.2°F47.8°F55.8°F
April 1951.8°F50°F48.2°F56.1°F
April 2052.5°F50.9°F48.2°F56.3°F
April 2151.1°F50.4°F47.8°F55.9°F
April 2250.7°F49.8°F48.4°F55.2°F
April 2350.7°F50.2°F48.4°F55°F
April 2450.5°F50.5°F48.4°F54.9°F
April 2550.5°F50.7°F47.8°F54.5°F
April 2650.4°F51.1°F47.5°F54.1°F
April 2749.5°F51.6°F46.9°F54°F
April 2849.3°F52°F47.1°F54.1°F
April 2950°F51.8°F48°F54.3°F
April 3049.6°F51.6°F47.7°F53.8°F
Eureka water temp chart in April

Average water temperature in Eureka in April over a decade

20162017201820192020
54.3°F52.2°F51.8°F52.3°F52.2°F
20212022202320242025
49.3°F48.9°F50.5°F51.3°F51.1°F

Eureka sea state in April

Chart comparing the height of waves in Eureka 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 Eureka in April

Weather and climate in Eureka in April

This data display average monthly climate indicators in Eureka 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 temperature44°F
  • Average rainfall days13 days
  • Average rainfall84mm/3.3''
  • Average sunshine8.4h

Eureka 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

Best Beach Resorts in California in April

Places with the warmest average sea water temperature in California in April. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
San Diego60.4°F54.1°F66.6°F
Santa Monica58.6°F54°F63.9°F
La Jolla Cove61.2°F55.6°F68.7°F
Lake Tahoe44.6°F40.8°F52.7°F
Los Angeles58.8°F54.9°F63.7°F
Samoa50.9°F47.1°F56.3°F
King Salmon50.9°F46.9°F56.1°F
Humboldt Beach50.9°F47.1°F56.5°F
Manila50.9°F47.1°F56.5°F
McKinleyville50.9°F46.8°F56.5°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 Eureka 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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