All data are in degrees Fahrenheit

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Hafnarfjörður in May

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

40.1 °F

Average:

44.5 °F

Maximum:

50.4 °F

Sea water temperature in Hafnarfjörður in May

In the city of Hafnarfjörður, the month of May is too cold for swimming. The minimum recorded temperature during this month was 40.1°F on May 1, 2015, with an average temperature being 44.5°F and a maximum temperature reaching 50.4°F on May 28, 2019.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In May, the sea temperature remains relatively stable. The average temperature stays close to 44.5°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
May 1 42.2°F 40.7°F 43.5°F
May 2 42.4°F 40.9°F 43.5°F
May 3 42.5°F 41.2°F 43.5°F
May 4 42.6°F 41.6°F 43.3°F
May 5 42.8°F 42.0°F 43.3°F
May 6 43.1°F 42.4°F 43.2°F
May 7 43.3°F 42.5°F 43.3°F
May 8 43.3°F 42.7°F 43.3°F
May 9 43.5°F 43.1°F 43.9°F
May 10 43.6°F 43.2°F 44.8°F
May 11 43.7°F 43.3°F 44.6°F
May 12 43.8°F 43.3°F 44.6°F
May 13 43.9°F 43.4°F 45.3°F
May 14 43.9°F 43.5°F 45.2°F
May 15 44.1°F 44.2°F 45.6°F
May 16 44.2°F 44.4°F 45.6°F
May 17 44.4°F 44.6°F 45.5°F
May 18 44.5°F 45.1°F 45.5°F
May 19 44.6°F 45.2°F 44.9°F
May 20 44.8°F 45.2°F 45.4°F
May 21 45.0°F 45.2°F 45.4°F
May 22 45.3°F 45.2°F 45.4°F
May 23 45.7°F 45.6°F 45.4°F
May 24 46.1°F 46.0°F 45.4°F
May 25 46.3°F 45.5°F 45.5°F
May 26 46.6°F 45.9°F 45.6°F
May 27 46.8°F 46.7°F 45.6°F
May 28 46.7°F 46.6°F 45.8°F
May 29 46.8°F 46.5°F 45.7°F
May 30 46.6°F 47.3°F 45.6°F
May 31 46.6°F 47.1°F 45.5°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. The average temperature in May is slightly warmer than April's average of 39.8°F. And in June, the temperature is expected to rise further, potentially reaching an average of 49.3°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kópavogur 43.1°F 3mi
Álftanes 43.3°F 3mi
Reykjavík 43.0°F 5mi
Akranes 42.5°F 18mi
Keflavík 43.0°F 19mi

* current water temperature in this city

** straight line distance from Hafnarfjörður