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Nanaimo in September

Find out everything about the water temperature in Nanaimo 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:

55.0 °F

Average:

60.3 °F

Maximum:

68.4 °F

Sea water temperature in Nanaimo in September

In the city of Nanaimo, the month of September is too cold for swimming. The minimum recorded temperature during this month was 55.0°F on September 30, 2023, with an average temperature being 60.3°F and a maximum temperature reaching 68.4°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 62.7°F at the beginning of the month, it steadily decreases to around 57.9°F by the end.
Date 10 years average 2024 2023
Sep 1 63.4°F 63.4°F 62.0°F
Sep 2 63.0°F 63.9°F 61.0°F
Sep 3 62.7°F 63.4°F 62.0°F
Sep 4 62.7°F 63.2°F 62.2°F
Sep 5 62.8°F 63.2°F 61.2°F
Sep 6 62.7°F 63.3°F 60.5°F
Sep 7 62.6°F 64.3°F 60.2°F
Sep 8 62.8°F 65.5°F 60.5°F
Sep 9 62.4°F 65.0°F 60.6°F
Sep 10 62.2°F 64.6°F 60.7°F
Sep 11 61.9°F 64.3°F 61.6°F
Sep 12 61.8°F 63.8°F 61.4°F
Sep 13 61.4°F 63.3°F 60.7°F
Sep 14 60.9°F 63.0°F 60.5°F
Sep 15 60.4°F 62.6°F 59.9°F
Sep 16 59.9°F 60.1°F 60.3°F
Sep 17 60.0°F 60.0°F 60.9°F
Sep 18 59.6°F 60.4°F 60.7°F
Sep 19 59.1°F 59.1°F 59.1°F
Sep 20 58.9°F 59.1°F 58.8°F
Sep 21 58.7°F 59.8°F 57.7°F
Sep 22 58.6°F 59.2°F 56.4°F
Sep 23 58.5°F 58.9°F 57.1°F
Sep 24 58.3°F 58.8°F 57.0°F
Sep 25 57.7°F 57.8°F 56.4°F
Sep 26 57.5°F 57.5°F 56.6°F
Sep 27 57.4°F 58.1°F 56.6°F
Sep 28 57.5°F 57.2°F 56.4°F
Sep 29 57.4°F 57.4°F 56.0°F
Sep 30 57.1°F 55.7°F 55.0°F

Sea water temperature in Nanaimo by month

In an average year, Nanaimo offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Nanaimo was recorded on July 31, 2022, reaching a 72.3°F. While the coldest temperature occurred on February 13, 2019, dipping to 41.5°F. The average readings by season are 45.2°F in Winter, 50.4°F in Spring, 63.8°F in Summer, and 54.4°F in Autumn. September's average temperature is a slight drop from August's average of 65.7°F. In October, the temperature is expected to decrease further, potentially averaging around 53.9°F.