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Monterey in September

Find out everything about the water temperature in Monterey 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:

56.6 °F

Average:

60.5 °F

Maximum:

65.3 °F

Sea water temperature in Monterey in September

In the city of Monterey, the month of September is too cold for swimming. The minimum recorded temperature during this month was 56.6°F on September 19, 2024, with an average temperature being 60.5°F and a maximum temperature reaching 65.3°F on September 3, 2014.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In September, the sea temperature remains relatively stable. The average temperature stays close to 60.5°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Sep 1 61.2°F 57.0°F 64.4°F
Sep 2 61.3°F 57.8°F 63.7°F
Sep 3 61.1°F 58.5°F 62.4°F
Sep 4 61.0°F 59.2°F 61.9°F
Sep 5 60.8°F 59.7°F 62.2°F
Sep 6 60.7°F 60.0°F 61.5°F
Sep 7 61.1°F 60.3°F 60.5°F
Sep 8 61.3°F 60.8°F 60.9°F
Sep 9 61.1°F 61.6°F 60.1°F
Sep 10 61.2°F 61.3°F 59.8°F
Sep 11 61.0°F 59.9°F 59.9°F
Sep 12 60.6°F 58.5°F 59.4°F
Sep 13 60.2°F 57.7°F 59.4°F
Sep 14 60.3°F 59.0°F 60.2°F
Sep 15 59.9°F 58.3°F 59.7°F
Sep 16 59.5°F 57.2°F 60.3°F
Sep 17 59.3°F 56.8°F 60.3°F
Sep 18 59.3°F 57.3°F 59.1°F
Sep 19 59.5°F 56.6°F 60.0°F
Sep 20 59.6°F 56.8°F 60.7°F
Sep 21 60.2°F 59.2°F 60.2°F
Sep 22 60.3°F 57.6°F 60.1°F
Sep 23 60.1°F 56.7°F 60.6°F
Sep 24 60.1°F 57.0°F 61.1°F
Sep 25 60.4°F 58.0°F 61.3°F
Sep 26 60.7°F 58.0°F 61.7°F
Sep 27 60.6°F 58.0°F 62.6°F
Sep 28 61.0°F 59.0°F 62.8°F
Sep 29 61.1°F 59.0°F 63.4°F
Sep 30 60.5°F 59.3°F 63.6°F

Sea water temperature in Monterey by month

In an average year, Monterey offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Monterey was recorded on August 17, 2020, reaching a 66.1°F. While the coldest temperature occurred on February 28, 2023, dipping to 50.9°F. The average readings by season are 55.7°F in Winter, 55.6°F in Spring, 58.5°F in Summer, and 59.0°F in Autumn. In September, the temperature is higher than August's average of 60.1°F and October's average of 59.3°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Carmel-by-the-Sea 53.6°F 3mi
San Jose 55.7°F 51mi
Redwood City 55.5°F 64mi

* current water temperature in this city

** straight line distance from Monterey