All data are in degrees Fahrenheit

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Hafnarfjörður in December

Find out everything about the water temperature in Hafnarfjörður 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:

34.9 °F

Average:

39.2 °F

Maximum:

42.9 °F

Sea water temperature in Hafnarfjörður in December

In the city of Hafnarfjörður, the month of December is too cold for swimming. The minimum recorded temperature during this month was 34.9°F on December 31, 2016, with an average temperature being 39.2°F and a maximum temperature reaching 42.9°F on December 1, 2014.

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 39.2°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Dec 1 41.6°F 40.9°F 42.1°F
Dec 2 41.3°F 40.5°F 42.1°F
Dec 3 41.0°F 40.4°F 41.9°F
Dec 4 40.7°F 40.1°F 41.6°F
Dec 5 40.5°F 40.1°F 41.5°F
Dec 6 40.3°F 39.7°F 41.4°F
Dec 7 40.1°F 38.8°F 41.5°F
Dec 8 39.8°F 39.1°F 40.9°F
Dec 9 39.9°F 39.1°F 40.4°F
Dec 10 39.6°F 38.9°F 39.9°F
Dec 11 39.4°F 38.7°F 40.0°F
Dec 12 39.1°F 38.3°F 40.2°F
Dec 13 39.0°F 38.4°F 40.0°F
Dec 14 39.0°F 38.4°F 39.9°F
Dec 15 38.9°F 37.8°F 39.9°F
Dec 16 38.9°F 37.7°F 39.7°F
Dec 17 38.8°F 37.4°F 39.9°F
Dec 18 38.7°F 37.2°F 39.5°F
Dec 19 38.6°F 37.2°F 39.5°F
Dec 20 38.5°F 37.4°F 39.3°F
Dec 21 38.5°F 36.8°F 40.0°F
Dec 22 38.6°F 37.0°F 39.6°F
Dec 23 38.5°F 36.9°F 40.1°F
Dec 24 38.6°F 36.9°F 39.9°F
Dec 25 38.6°F 36.9°F 38.8°F
Dec 26 38.5°F 36.9°F 39.2°F
Dec 27 38.4°F 36.8°F 38.8°F
Dec 28 38.3°F 36.6°F 39.2°F
Dec 29 38.3°F 36.6°F 39.1°F
Dec 30 38.0°F 36.4°F 38.2°F
Dec 31 38.0°F 36.4°F 38.4°F

Sea water temperature in Hafnarfjörður by month

In an average year, Hafnarfjörður offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Hafnarfjörður was recorded on August 15, 2021, reaching a 56.3°F. While the coldest temperature occurred on January 24, 2023, dipping to 33.8°F. The average readings by season are 37.7°F in Winter, 40.7°F in Spring, 51.5°F in Summer, and 46.8°F in Autumn. December's average temperature is a slight drop from November's average of 43.3°F. In January, the temperature is expected to decrease further, potentially averaging around 37.4°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kópavogur 36.9°F 3mi
Álftanes 37.0°F 3mi
Reykjavík 36.9°F 5mi
Akranes 36.8°F 18mi
Keflavík 40.3°F 19mi

* current water temperature in this city

** straight line distance from Hafnarfjörður