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Jönköping in September

Find out everything about the water temperature in Jönköping 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:

53.0 °F

Average:

59.0 °F

Maximum:

64.4 °F

Sea water temperature in Jönköping in September

In the city of Jönköping, the month of September is too cold for swimming. The minimum recorded temperature during this month was 53.0°F on September 30, 2023, with an average temperature being 59.0°F and a maximum temperature reaching 64.4°F on September 1, 2022.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. Throughout the month of September, the sea temperature gradually gets colder. Starting with an average temperature of 61.0°F at the beginning of the month, it steadily decreases to around 56.8°F by the end.
Date 10 years average 2024 2023
Sep 1 61.3°F 57.8°F 60.5°F
Sep 2 61.1°F 58.2°F 59.6°F
Sep 3 61.0°F 58.5°F 60.4°F
Sep 4 61.1°F 59.8°F 60.2°F
Sep 5 61.3°F 61.0°F 60.4°F
Sep 6 61.1°F 61.0°F 60.3°F
Sep 7 61.1°F 61.6°F 60.3°F
Sep 8 60.9°F 61.8°F 59.8°F
Sep 9 60.8°F 63.2°F 60.4°F
Sep 10 60.3°F 62.6°F 58.7°F
Sep 11 60.0°F 62.7°F 58.7°F
Sep 12 59.9°F 61.8°F 60.5°F
Sep 13 59.8°F 61.2°F 61.9°F
Sep 14 59.5°F 60.4°F 60.9°F
Sep 15 59.3°F 59.9°F 60.6°F
Sep 16 59.3°F 59.7°F 60.4°F
Sep 17 59.3°F 59.8°F 60.7°F
Sep 18 59.1°F 59.6°F 60.2°F
Sep 19 58.9°F 59.4°F 60.0°F
Sep 20 58.6°F 59.3°F 59.4°F
Sep 21 58.5°F 59.7°F 59.4°F
Sep 22 58.2°F 59.9°F 59.4°F
Sep 23 57.6°F 59.0°F 58.9°F
Sep 24 57.0°F 58.3°F 55.4°F
Sep 25 56.7°F 57.9°F 55.4°F
Sep 26 56.5°F 58.2°F 54.8°F
Sep 27 56.2°F 57.6°F 54.4°F
Sep 28 55.8°F 57.0°F 54.4°F
Sep 29 55.6°F 56.9°F 54.4°F
Sep 30 55.5°F 56.7°F 53.0°F

Sea water temperature in Jönköping by month

In an average year, Jönköping offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Jönköping was recorded on August 1, 2018, reaching a 71.9°F. While the coldest temperature occurred on March 15, 2018, dipping to 32.7°F. The average readings by season are 39.6°F in Winter, 39.4°F in Spring, 59.2°F in Summer, and 52.8°F in Autumn. September's average temperature is a slight drop from August's average of 62.9°F. In October, the temperature is expected to decrease further, potentially averaging around 51.9°F.