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Dublin in December

Find out everything about the water temperature in Dublin 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:

45.4 °F

Average:

49.4 °F

Maximum:

52.6 °F

Sea water temperature in Dublin in December

In the city of Dublin, the month of December is too cold for swimming. The minimum recorded temperature during this month was 45.4°F on December 31, 2020, with an average temperature being 49.4°F and a maximum temperature reaching 52.6°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 49.4°F throughout the month, with minimal changes.
Date 10 years average 2023 2022
Dec 1 51.0°F 51.4°F 52.3°F
Dec 2 50.8°F 50.1°F 52.3°F
Dec 3 50.6°F 49.8°F 52.5°F
Dec 4 50.6°F 49.8°F 52.2°F
Dec 5 50.4°F 49.9°F 52.2°F
Dec 6 50.1°F 49.9°F 52.0°F
Dec 7 50.1°F 50.1°F 51.9°F
Dec 8 50.1°F 49.9°F 51.2°F
Dec 9 50.0°F 49.8°F 50.6°F
Dec 10 49.7°F 48.9°F 49.9°F
Dec 11 49.6°F 48.8°F 49.8°F
Dec 12 49.5°F 48.5°F 49.2°F
Dec 13 49.5°F 48.7°F 49.2°F
Dec 14 49.5°F 48.7°F 49.3°F
Dec 15 49.4°F 48.8°F 48.3°F
Dec 16 49.0°F 48.7°F 46.9°F
Dec 17 48.9°F 49.3°F 47.0°F
Dec 18 49.0°F 49.7°F 47.0°F
Dec 19 49.0°F 49.7°F 47.2°F
Dec 20 48.9°F 49.6°F 45.8°F
Dec 21 48.9°F 49.0°F 46.1°F
Dec 22 49.0°F 49.0°F 46.1°F
Dec 23 49.0°F 49.0°F 46.6°F
Dec 24 48.9°F 49.5°F 46.2°F
Dec 25 48.8°F 49.8°F 46.5°F
Dec 26 48.9°F 49.5°F 46.7°F
Dec 27 48.7°F 49.2°F 46.6°F
Dec 28 48.6°F 49.2°F 46.5°F
Dec 29 48.6°F 49.3°F 46.9°F
Dec 30 48.7°F 49.1°F 47.2°F
Dec 31 48.6°F 49.4°F 47.4°F

Sea water temperature in Dublin by month

In an average year, Dublin offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Dublin was recorded on August 14, 2022, reaching a 63.0°F. While the coldest temperature occurred on March 11, 2018, dipping to 42.8°F. The average readings by season are 47.4°F in Winter, 48.4°F in Spring, 58.3°F in Summer, and 56.3°F in Autumn. December's average temperature is a slight drop from November's average of 53.2°F. In January, the temperature is expected to decrease further, potentially averaging around 47.0°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Dún Laoghaire 54.5°F 5mi
Bray 54.1°F 11mi
Greystones 53.8°F 15mi

* current water temperature in this city

** straight line distance from Dublin