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San José in September

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

82.7 °F

Average:

84.2 °F

Maximum:

87.9 °F

Sea water temperature in San José in September

In the city of San José, the month of September is a great time for swimming. The minimum recorded temperature during this month was 82.7°F on September 12, 2015, with an average temperature being 84.2°F and a maximum temperature reaching 87.9°F on September 2, 2023.

The watter temperature range during this month provides a satisfying and enjoyable experience in the water. In September, the sea temperature remains relatively stable. The average temperature stays close to 84.2°F throughout the month, with minimal changes.
Date 10 years average 2023 2022
Sep 1 84.1°F 86.5°F 84.0°F
Sep 2 84.3°F 87.9°F 83.9°F
Sep 3 84.2°F 87.1°F 84.0°F
Sep 4 84.3°F 86.6°F 84.4°F
Sep 5 84.3°F 85.8°F 84.0°F
Sep 6 84.3°F 86.7°F 84.4°F
Sep 7 84.3°F 86.5°F 84.0°F
Sep 8 84.0°F 85.1°F 84.0°F
Sep 9 84.1°F 86.0°F 84.2°F
Sep 10 84.2°F 85.5°F 84.9°F
Sep 11 84.1°F 85.4°F 85.0°F
Sep 12 83.9°F 85.4°F 84.6°F
Sep 13 84.0°F 85.4°F 84.3°F
Sep 14 84.1°F 85.8°F 84.2°F
Sep 15 84.1°F 85.3°F 84.2°F
Sep 16 84.0°F 84.9°F 84.5°F
Sep 17 84.1°F 84.7°F 84.7°F
Sep 18 84.1°F 84.6°F 84.6°F
Sep 19 84.1°F 84.5°F 84.4°F
Sep 20 84.2°F 84.7°F 84.3°F
Sep 21 84.2°F 85.9°F 84.1°F
Sep 22 84.2°F 85.2°F 84.2°F
Sep 23 84.4°F 86.1°F 84.2°F
Sep 24 84.3°F 85.4°F 84.2°F
Sep 25 84.3°F 85.9°F 83.9°F
Sep 26 84.2°F 85.7°F 83.9°F
Sep 27 84.4°F 85.3°F 83.9°F
Sep 28 84.3°F 85.2°F 83.8°F
Sep 29 84.6°F 86.6°F 84.2°F
Sep 30 84.7°F 87.2°F 84.4°F

Sea water temperature in San José by month

In San José, the water temperature is comfortable for swimming all year round. The warmest water in San José was recorded on September 2, 2023, reaching a 87.9°F. While the coldest temperature occurred on March 9, 2020, dipping to 74.0°F. The average readings by season are 80.9°F in Winter, 80.6°F in Spring, 84.0°F in Summer, and 83.9°F in Autumn. In September, the temperature is higher than August's average of 83.9°F and October's average of 84.1°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
San José 86.3°F 30mi
Veracruz 86.0°F 32mi
Panamá 87.1°F 42mi
San Francisco 87.1°F 42mi
Los Ángeles 85.6°F 54mi
Santo Domingo 84.3°F 59mi

* current water temperature in this city

** straight line distance from San José