All data are in degrees Fahrenheit

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Oslo in December

Find out everything about the water temperature in Oslo 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 sea temperature data with other months of the year.
Water temperature in December
Minimum:

32.0 °F

Average:

39.4 °F

Maximum:

45.9 °F

Sea water temperature in Oslo in December

In the city of Oslo, the month of December is too cold for swimming. The minimum recorded temperature during this month was 32.0°F on December 26, 2019, with an average temperature being 39.4°F and a maximum temperature reaching 45.9°F on December 1, 2015.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In December, the sea temperature remains relatively stable. The average temperature stays close to 39.4°F throughout the month, with minimal changes.
Date 10 years average 2023 2022
Dec 1 44.1°F 44.4°F 43.8°F
Dec 2 42.4°F 42.0°F 44.1°F
Dec 3 40.6°F 40.7°F 42.0°F
Dec 4 38.8°F 39.0°F 40.0°F
Dec 5 40.8°F 41.1°F 41.9°F
Dec 6 40.8°F 40.0°F 42.2°F
Dec 7 40.8°F 40.0°F 41.4°F
Dec 8 41.0°F 40.5°F 38.9°F
Dec 9 40.7°F 40.1°F 38.7°F
Dec 10 40.1°F 39.9°F 38.6°F
Dec 11 39.7°F 38.8°F 40.4°F
Dec 12 40.1°F 38.9°F 41.4°F
Dec 13 40.1°F 39.0°F 41.6°F
Dec 14 39.9°F 39.0°F 41.3°F
Dec 15 39.4°F 38.6°F 40.6°F
Dec 16 39.4°F 38.5°F 40.3°F
Dec 17 40.0°F 40.8°F 40.9°F
Dec 18 38.4°F 36.9°F 39.5°F
Dec 19 38.2°F 36.8°F 39.1°F
Dec 20 38.9°F 37.5°F 39.7°F
Dec 21 38.9°F 35.5°F 39.6°F
Dec 22 39.1°F 35.7°F 39.5°F
Dec 23 38.8°F 33.2°F 39.4°F
Dec 24 38.4°F 33.8°F 37.0°F
Dec 25 37.1°F 32.6°F 35.5°F
Dec 26 37.2°F 33.5°F 35.5°F
Dec 27 37.4°F 34.0°F 36.2°F
Dec 28 37.1°F 34.2°F 35.1°F
Dec 29 37.3°F 34.6°F 35.6°F
Dec 30 37.9°F 35.4°F 36.6°F
Dec 31 38.4°F 35.6°F 39.1°F

Sea water temperature in Oslo by month

In an average year, Oslo offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Oslo was recorded on July 26, 2014, reaching a 75.8°F. While the coldest temperature occurred on January 27, 2023, dipping to 32.0°F. The average readings by season are 37.1°F in Winter, 43.0°F in Spring, 64.2°F in Summer, and 53.2°F in Autumn. December's average temperature is a slight drop from November's average of 47.1°F. In January, the temperature is expected to decrease further, potentially averaging around 37.0°F.