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Genève in September

Find out everything about the water temperature in Genève 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 water temperature data with other months of the year.
Water temperature in September
Minimum:

61.1 °F

Average:

67.2 °F

Maximum:

74.1 °F

Water temperature in Genève in September

In the city of Genève, the month of September is somewhat comfortable for swimming. The minimum recorded temperature during this month was 61.1°F on September 26, 2017, with an average temperature being 67.2°F and a maximum temperature reaching 74.1°F on September 12, 2023.

While some may find it enjoyable for a brief swim, others might consider it a bit too cold for extended periods in the water. Throughout the month of September, the water temperature gradually gets colder. Starting with an average temperature of 69.2°F at the beginning of the month, it steadily decreases to around 65.0°F by the end.
Date 10 years average 2024 2023
Sep 1 70.2°F 72.7°F 73.1°F
Sep 2 69.9°F 72.8°F 72.5°F
Sep 3 69.5°F 73.6°F 69.7°F
Sep 4 69.3°F 72.9°F 69.4°F
Sep 5 69.1°F 72.2°F 69.8°F
Sep 6 69.1°F 70.6°F 70.8°F
Sep 7 69.0°F 70.6°F 71.4°F
Sep 8 68.7°F 69.9°F 72.3°F
Sep 9 68.6°F 69.3°F 73.1°F
Sep 10 68.5°F 68.9°F 73.5°F
Sep 11 68.2°F 68.5°F 73.8°F
Sep 12 68.1°F 68.0°F 74.1°F
Sep 13 67.8°F 67.6°F 73.1°F
Sep 14 67.5°F 67.1°F 72.2°F
Sep 15 67.5°F 66.8°F 71.5°F
Sep 16 67.2°F 66.7°F 70.4°F
Sep 17 67.3°F 66.4°F 69.7°F
Sep 18 67.3°F 66.1°F 69.1°F
Sep 19 66.9°F 65.9°F 68.5°F
Sep 20 67.0°F 65.6°F 69.6°F
Sep 21 67.0°F 65.4°F 71.1°F
Sep 22 66.4°F 65.0°F 70.3°F
Sep 23 65.8°F 64.6°F 69.4°F
Sep 24 65.4°F 64.2°F 68.8°F
Sep 25 65.0°F 63.8°F 67.7°F
Sep 26 64.4°F 63.4°F 65.5°F
Sep 27 64.4°F 63.0°F 66.9°F
Sep 28 64.1°F 62.7°F 66.4°F
Sep 29 64.0°F 62.5°F 66.7°F
Sep 30 63.9°F 62.4°F 67.1°F

Water temperature in Genève by month

In an average year, Genève offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Genève was recorded on August 25, 2023, reaching a 78.7°F. While the coldest temperature occurred on March 18, 2023, dipping to 43.4°F. The average readings by season are 48.9°F in Winter, 52.2°F in Spring, 68.1°F in Summer, and 61.1°F in Autumn. September's average temperature is a slight drop from August's average of 70.5°F. In October, the temperature is expected to decrease further, potentially averaging around 60.7°F.