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San Jose in August

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

56.7 °F

Average:

63.9 °F

Maximum:

71.5 °F

Sea water temperature in San Jose in August

In the city of San Jose, the month of August is somewhat too cool for swimming. The minimum recorded temperature during this month was 56.7°F on August 1, 2016, with an average temperature being 63.9°F and a maximum temperature reaching 71.5°F on August 1, 2020.

Most people would find such water temperature somewhat too cold for swimming. In August, the sea temperature remains relatively stable. The average temperature stays close to 63.9°F throughout the month, with minimal changes.
Date 10 years average 2023 2022
Aug 1 64.0°F 66.8°F 70.2°F
Aug 2 63.8°F 66.4°F 69.1°F
Aug 3 63.8°F 65.2°F 69.6°F
Aug 4 63.8°F 64.9°F 69.7°F
Aug 5 64.0°F 65.9°F 68.0°F
Aug 6 64.0°F 66.0°F 66.9°F
Aug 7 63.8°F 66.7°F 66.8°F
Aug 8 63.7°F 66.4°F 67.6°F
Aug 9 63.6°F 67.3°F 67.2°F
Aug 10 63.5°F 67.1°F 69.2°F
Aug 11 63.4°F 67.8°F 69.4°F
Aug 12 63.4°F 67.2°F 69.5°F
Aug 13 63.6°F 67.7°F 69.7°F
Aug 14 63.8°F 68.7°F 69.5°F
Aug 15 63.9°F 69.3°F 68.8°F
Aug 16 63.8°F 69.4°F 67.9°F
Aug 17 64.0°F 70.1°F 68.3°F
Aug 18 64.0°F 71.1°F 68.3°F
Aug 19 63.9°F 70.5°F 68.9°F
Aug 20 64.1°F 70.4°F 68.8°F
Aug 21 64.2°F 70.0°F 69.4°F
Aug 22 64.4°F 70.7°F 68.9°F
Aug 23 64.3°F 70.3°F 69.6°F
Aug 24 64.4°F 69.9°F 70.8°F
Aug 25 64.1°F 70.7°F 69.3°F
Aug 26 63.9°F 71.3°F 68.7°F
Aug 27 63.9°F 70.5°F 70.2°F
Aug 28 63.9°F 69.5°F 70.1°F
Aug 29 63.7°F 69.3°F 68.9°F
Aug 30 63.7°F 70.5°F 68.4°F
Aug 31 63.8°F 70.9°F 69.2°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 September 9, 2022, reaching a 73.7°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, 57.5°F in Spring, 62.9°F in Summer, and 61.5°F in Autumn. The average temperature in August is slightly warmer than July's average of 63.6°F. And in September, the temperature is expected to rise further, potentially reaching an average of 64.1°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Redwood City 63.9°F 21mi
Oakland 59.9°F 38mi
San Francisco 56.9°F 42mi
Monterey 56.9°F 51mi

* current water temperature in this city

** straight line distance from San Jose