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Saint-Malo in September

Find out everything about the water temperature in Saint-Malo 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:

62.0 °F

Average:

65.3 °F

Maximum:

69.1 °F

Sea water temperature in Saint-Malo in September

In the city of Saint-Malo, the month of September is somewhat too cool for swimming. The minimum recorded temperature during this month was 62.0°F on September 30, 2015, with an average temperature being 65.3°F and a maximum temperature reaching 69.1°F on September 6, 2022.

Most people would find such water temperature somewhat too cold for swimming. In September, the sea temperature remains relatively stable. The average temperature stays close to 65.3°F throughout the month, with minimal changes.
Date 10 years average 2023 2022
Sep 1 65.9°F 66.5°F 68.2°F
Sep 2 65.9°F 66.2°F 68.2°F
Sep 3 65.9°F 66.1°F 68.5°F
Sep 4 65.9°F 67.0°F 68.3°F
Sep 5 66.0°F 67.6°F 68.3°F
Sep 6 65.9°F 66.5°F 69.1°F
Sep 7 66.0°F 66.7°F 68.3°F
Sep 8 66.0°F 67.4°F 68.5°F
Sep 9 65.9°F 68.4°F 67.7°F
Sep 10 65.8°F 67.9°F 67.4°F
Sep 11 65.6°F 67.6°F 66.8°F
Sep 12 65.7°F 68.3°F 67.2°F
Sep 13 65.6°F 67.7°F 67.0°F
Sep 14 65.5°F 67.6°F 67.3°F
Sep 15 65.4°F 68.1°F 67.1°F
Sep 16 65.4°F 67.7°F 67.2°F
Sep 17 65.2°F 67.6°F 66.5°F
Sep 18 65.3°F 68.0°F 66.4°F
Sep 19 65.2°F 67.6°F 66.5°F
Sep 20 65.0°F 67.2°F 66.2°F
Sep 21 64.9°F 66.8°F 65.9°F
Sep 22 65.0°F 67.0°F 65.9°F
Sep 23 64.7°F 66.8°F 65.8°F
Sep 24 64.5°F 66.4°F 65.8°F
Sep 25 64.5°F 65.6°F 65.6°F
Sep 26 64.6°F 66.8°F 65.6°F
Sep 27 64.4°F 66.7°F 65.2°F
Sep 28 64.3°F 66.5°F 64.9°F
Sep 29 64.1°F 66.0°F 64.5°F
Sep 30 63.8°F 65.4°F 63.7°F

Sea water temperature in Saint-Malo by month

In an average year, Saint-Malo offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Saint-Malo was recorded on August 12, 2022, reaching a 70.2°F. While the coldest temperature occurred on March 1, 2018, dipping to 44.6°F. The average readings by season are 49.3°F in Winter, 51.5°F in Spring, 63.8°F in Summer, and 61.1°F in Autumn. September's average temperature is a slight drop from August's average of 66.1°F. In October, the temperature is expected to decrease further, potentially averaging around 61.4°F.