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Eureka in July

Find out everything about the water temperature in Eureka in July. Average, minimum and maximum recorded temperatures as well as daily temperature in July for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in July
Minimum:

44.7 °F

Average:

53.9 °F

Maximum:

60.3 °F

Sea water temperature in Eureka in July

In the city of Eureka, the month of July is too cold for swimming. The minimum recorded temperature during this month was 44.7°F on July 15, 2021, with an average temperature being 53.9°F and a maximum temperature reaching 60.3°F on July 14, 2015.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In July, the sea temperature remains relatively stable. The average temperature stays close to 53.9°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Jul 1 53.2°F 53.4°F 51.1°F
Jul 2 52.9°F 53.7°F 49.2°F
Jul 3 52.9°F 53.8°F 51.0°F
Jul 4 52.9°F 51.5°F 53.6°F
Jul 5 53.3°F 52.5°F 54.2°F
Jul 6 53.3°F 52.3°F 53.7°F
Jul 7 53.2°F 53.9°F 52.5°F
Jul 8 53.5°F 55.4°F 52.1°F
Jul 9 53.8°F 55.7°F 52.1°F
Jul 10 54.2°F 56.3°F 52.8°F
Jul 11 54.2°F 54.7°F 52.0°F
Jul 12 54.4°F 55.8°F 53.1°F
Jul 13 54.4°F 54.9°F 50.1°F
Jul 14 54.0°F 54.1°F 49.9°F
Jul 15 54.1°F 54.0°F 52.8°F
Jul 16 53.9°F 53.1°F 53.2°F
Jul 17 53.9°F 53.0°F 50.8°F
Jul 18 54.0°F 53.4°F 50.7°F
Jul 19 54.1°F 55.1°F 53.0°F
Jul 20 54.1°F 55.2°F 53.2°F
Jul 21 53.9°F 55.4°F 50.4°F
Jul 22 54.2°F 53.5°F 52.6°F
Jul 23 54.6°F 53.7°F 53.6°F
Jul 24 54.9°F 54.2°F 53.8°F
Jul 25 54.7°F 54.3°F 54.2°F
Jul 26 54.5°F 53.5°F 55.4°F
Jul 27 54.1°F 53.9°F 55.3°F
Jul 28 54.1°F 53.7°F 54.2°F
Jul 29 54.1°F 54.3°F 55.5°F
Jul 30 54.1°F 54.3°F 56.3°F
Jul 31 54.2°F 54.2°F 55.9°F

Sea water temperature in Eureka by month

In an average year, Eureka offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Eureka was recorded on August 12, 2022, reaching a 61.8°F. While the coldest temperature occurred on July 15, 2021, dipping to 44.7°F. The average readings by season are 52.3°F in Winter, 51.4°F in Spring, 54.1°F in Summer, and 54.5°F in Autumn. The average temperature in July is slightly warmer than June's average of 52.7°F. And in August, the temperature is expected to rise further, potentially reaching an average of 55.5°F.