World sea water temperatures

Water temperature in Eureka (CA) in October

Is it warm enough to swim in Eureka in October? Average water temperature in Eureka in October is 53.6°F and therefore is not suitable for comfortable swimming. The warmest sea in Eureka in October is 59.9°F, and the coldest is 49.1°F. Average high air temperature in Eureka in October is 62°F, and average low temperature is 47°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 October 2024, 2023

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 October.

You can choose any other years:

Year 1:   Year 2:


Day 2024 2023 Min Max
October 152.3°F54.7°F52.2°F59.9°F
October 253.1°F54.3°F51.8°F59.2°F
October 352.7°F54.3°F52°F58.6°F
October 452.7°F54.7°F51.4°F59.2°F
October 553.1°F54.3°F51.3°F58.6°F
October 653.1°F54.7°F51.6°F58.3°F
October 753.8°F55.6°F52°F57.2°F
October 852.9°F54.7°F52.2°F57.7°F
October 955°F55°F51.4°F57.7°F
October 1053.2°F55.4°F50.7°F57.6°F
October 1152.3°F54°F50.9°F57.2°F
October 1252.5°F53.8°F51.1°F57.6°F
October 1354.5°F54°F50.4°F57.9°F
October 1453.4°F54°F50.9°F57.9°F
October 1553.1°F54.5°F50.4°F57.6°F
Day 2024 2023 Min Max
October 1653.4°F55.6°F50.7°F58.1°F
October 1754.1°F54.7°F50.2°F57.6°F
October 1852.7°F52.7°F50°F57.4°F
October 1952.7°F53.2°F49.6°F57.9°F
October 2052.3°F54.9°F49.6°F58.1°F
October 2152.5°F55.2°F49.5°F57.6°F
October 2251.8°F55.2°F49.6°F57.6°F
October 2352.5°F55.2°F49.8°F57.6°F
October 2451.4°F54.5°F49.8°F57.4°F
October 2552.5°F54.5°F49.8°F57.4°F
October 2652.9°F54.1°F49.8°F57.7°F
October 2753.8°F54°F49.6°F57.9°F
October 2853.4°F53.6°F49.1°F58.5°F
October 2952.7°F53.2°F49.5°F58.5°F
October 3052.5°F52.9°F50°F58.6°F
October 3152.7°F52.5°F50°F58.6°F
Eureka water temp chart in October

Average water temperature in Eureka in October over a decade

20152016201720182019
56.3°F54.9°F52°F53.2°F52.2°F
20202021202220232024
54.1°F53.2°F53.6°F54.3°F52.9°F

Eureka sea state in October

Chart comparing the height of waves in Eureka in October 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 October

Weather and climate in Eureka in October

This data display average monthly climate indicators in Eureka in October 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 temperature62°F
  • Average LOW temperature47°F
  • Average rainfall days9 days
  • Average rainfall56mm/2.2''
  • Average sunshine5.7h

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 October?

Want to know where the water temperature in October 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 October

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

AvrMinMax
San Diego66.9°F62.1°F73.8°F
Santa Monica66.4°F60.3°F73.2°F
La Jolla Cove67.3°F63°F73.6°F
Lake Tahoe58.6°F53.2°F64.2°F
Los Angeles66.4°F61°F73.8°F
Samoa53.6°F48.9°F59.9°F
King Salmon53.6°F49.3°F59.9°F
Humboldt Beach53.8°F48.7°F59.9°F
Manila53.8°F48.7°F59.9°F
McKinleyville53.8°F47.8°F59.7°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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