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San Jose in April

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

53.1 °F

Average:

57.7 °F

Maximum:

66.0 °F

Sea water temperature in San Jose in April

In the city of San Jose, the month of April is too cold for swimming. The minimum recorded temperature during this month was 53.1°F on April 30, 2015, with an average temperature being 57.7°F and a maximum temperature reaching 66.0°F on April 24, 2024.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In April, the sea temperature remains relatively stable. The average temperature stays close to 57.7°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Apr 1 56.6°F 58.2°F 53.3°F
Apr 2 56.6°F 58.0°F 53.7°F
Apr 3 56.9°F 59.0°F 55.0°F
Apr 4 57.0°F 59.3°F 54.8°F
Apr 5 56.5°F 58.7°F 53.8°F
Apr 6 56.5°F 58.3°F 53.6°F
Apr 7 56.6°F 57.7°F 53.5°F
Apr 8 56.8°F 57.4°F 53.5°F
Apr 9 57.0°F 58.1°F 53.5°F
Apr 10 57.4°F 58.5°F 54.3°F
Apr 11 57.3°F 58.5°F 55.1°F
Apr 12 57.7°F 59.3°F 55.5°F
Apr 13 57.6°F 59.5°F 56.5°F
Apr 14 57.5°F 58.9°F 56.0°F
Apr 15 57.5°F 58.6°F 56.5°F
Apr 16 57.5°F 58.5°F 56.9°F
Apr 17 57.6°F 58.7°F 57.9°F
Apr 18 57.7°F 58.8°F 57.6°F
Apr 19 57.8°F 60.4°F 56.8°F
Apr 20 58.1°F 61.4°F 56.6°F
Apr 21 58.4°F 61.8°F 56.7°F
Apr 22 58.4°F 63.1°F 56.9°F
Apr 23 58.7°F 64.4°F 56.9°F
Apr 24 58.8°F 66.0°F 57.8°F
Apr 25 58.8°F 65.0°F 57.8°F
Apr 26 58.6°F 63.3°F 57.9°F
Apr 27 58.6°F 63.4°F 58.0°F
Apr 28 58.6°F 62.1°F 59.0°F
Apr 29 58.4°F 61.8°F 59.2°F
Apr 30 58.4°F 61.4°F 58.8°F

Sea water temperature in San Jose by month

In an average year, San Jose offers no days when the water temperature is warm enough to swim comfortably. The warmest water in San Jose was recorded on October 7, 2024, reaching a 73.9°F. While the coldest temperature occurred on February 9, 2023, dipping to 50.8°F. The average readings by season are 54.0°F in Winter, 57.6°F in Spring, 63.3°F in Summer, and 61.8°F in Autumn. The average temperature in April is slightly warmer than March's average of 55.8°F. And in May, the temperature is expected to rise further, potentially reaching an average of 59.2°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Redwood City 55.5°F 21mi
Oakland 54.3°F 38mi
San Francisco 53.6°F 42mi
Monterey 53.8°F 51mi

* current water temperature in this city

** straight line distance from San Jose