All data are in degrees Fahrenheit

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Luleå in September

Find out everything about the water temperature in Luleå 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:

47.5 °F

Average:

54.6 °F

Maximum:

63.2 °F

Sea water temperature in Luleå in September

In the city of Luleå, the month of September is too cold for swimming. The minimum recorded temperature during this month was 47.5°F on September 30, 2014, with an average temperature being 54.6°F and a maximum temperature reaching 63.2°F on September 2, 2019.

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 57.8°F at the beginning of the month, it steadily decreases to around 51.2°F by the end.
Date 10 years average 2024 2023
Sep 1 59.0°F 58.6°F 62.2°F
Sep 2 58.7°F 58.5°F 61.8°F
Sep 3 58.5°F 58.1°F 61.4°F
Sep 4 58.3°F 58.5°F 62.0°F
Sep 5 57.8°F 59.0°F 61.0°F
Sep 6 57.5°F 59.6°F 59.0°F
Sep 7 57.3°F 60.9°F 59.0°F
Sep 8 57.3°F 59.7°F 59.7°F
Sep 9 56.8°F 60.0°F 58.2°F
Sep 10 56.6°F 59.9°F 59.6°F
Sep 11 56.4°F 59.2°F 58.5°F
Sep 12 56.4°F 59.8°F 58.7°F
Sep 13 56.2°F 59.4°F 57.9°F
Sep 14 55.8°F 58.8°F 57.0°F
Sep 15 55.3°F 58.4°F 56.0°F
Sep 16 54.8°F 57.5°F 56.0°F
Sep 17 54.5°F 58.1°F 55.5°F
Sep 18 53.9°F 57.4°F 53.9°F
Sep 19 53.5°F 56.7°F 52.7°F
Sep 20 53.1°F 56.4°F 53.1°F
Sep 21 52.8°F 56.8°F 52.6°F
Sep 22 52.4°F 55.6°F 52.5°F
Sep 23 51.9°F 53.7°F 52.6°F
Sep 24 51.3°F 53.1°F 52.4°F
Sep 25 51.0°F 52.7°F 52.0°F
Sep 26 51.0°F 54.0°F 52.2°F
Sep 27 50.7°F 53.4°F 52.3°F
Sep 28 50.4°F 53.1°F 51.8°F
Sep 29 50.3°F 54.5°F 51.5°F
Sep 30 49.9°F 51.6°F 51.8°F

Sea water temperature in Luleå by month

In an average year, Luleå offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Luleå was recorded on July 25, 2018, reaching a 74.1°F. While the coldest temperature occurred on January 1, 2016, dipping to 32.0°F. The average readings by season are 32.5°F in Winter, 34.8°F in Spring, 59.8°F in Summer, and 44.9°F in Autumn. September's average temperature is a slight drop from August's average of 62.4°F. In October, the temperature is expected to decrease further, potentially averaging around 44.2°F.