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Toronto in December

Find out everything about the water temperature in Toronto in December. Average, minimum and maximum recorded temperatures as well as daily temperature in December for the last two years. Compare the current month's water temperature data with other months of the year.
Water temperature in December
Minimum:

37.5 °F

Average:

40.8 °F

Maximum:

45.4 °F

Water temperature in Toronto in December

In the city of Toronto, the month of December is too cold for swimming. The minimum recorded temperature during this month was 37.5°F on December 30, 2022, with an average temperature being 40.8°F and a maximum temperature reaching 45.4°F on December 1, 2021.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In December, the water temperature remains relatively stable. The average temperature stays close to 40.8°F throughout the month, with minimal changes.
Date 10 years average 2023 2022
Dec 1 42.6°F 41.2°F 41.9°F
Dec 2 42.7°F 41.1°F 41.7°F
Dec 3 42.4°F 41.3°F 40.9°F
Dec 4 42.3°F 41.5°F 41.1°F
Dec 5 42.0°F 40.7°F 41.2°F
Dec 6 41.9°F 41.0°F 41.2°F
Dec 7 41.8°F 41.2°F 41.5°F
Dec 8 41.7°F 41.8°F 41.4°F
Dec 9 41.5°F 41.3°F 42.0°F
Dec 10 41.4°F 41.1°F 41.8°F
Dec 11 41.5°F 40.9°F 41.5°F
Dec 12 41.5°F 41.1°F 41.5°F
Dec 13 41.1°F 40.9°F 41.3°F
Dec 14 40.8°F 40.3°F 39.8°F
Dec 15 40.9°F 40.1°F 39.5°F
Dec 16 40.9°F 40.2°F 39.7°F
Dec 17 40.6°F 40.2°F 39.8°F
Dec 18 40.6°F 40.3°F 39.5°F
Dec 19 40.5°F 40.3°F 40.4°F
Dec 20 40.3°F 40.2°F 40.4°F
Dec 21 40.2°F 39.7°F 40.5°F
Dec 22 40.0°F 39.7°F 38.7°F
Dec 23 39.9°F 39.5°F 38.0°F
Dec 24 39.7°F 39.2°F 37.9°F
Dec 25 40.0°F 38.9°F 37.7°F
Dec 26 39.6°F 38.8°F 38.2°F
Dec 27 39.3°F 38.5°F 38.0°F
Dec 28 39.3°F 39.7°F 38.3°F
Dec 29 39.4°F 40.3°F 38.4°F
Dec 30 39.1°F 40.4°F 37.5°F
Dec 31 39.0°F 38.9°F 37.9°F

Water temperature in Toronto by month

In an average year, Toronto offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Toronto was recorded on August 30, 2021, reaching a 76.7°F. While the coldest temperature occurred on February 20, 2015, dipping to 32.0°F. The average readings by season are 38.2°F in Winter, 39.8°F in Spring, 63.9°F in Summer, and 57.3°F in Autumn. December's average temperature is a slight drop from November's average of 46.5°F. In January, the temperature is expected to decrease further, potentially averaging around 37.7°F.