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Calais in May

Find out everything about the water temperature in Calais 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:

48.9 °F

Average:

53.8 °F

Maximum:

58.9 °F

Sea water temperature in Calais in May

In the city of Calais, the month of May is too cold for swimming. The minimum recorded temperature during this month was 48.9°F on May 2, 2021, with an average temperature being 53.8°F and a maximum temperature reaching 58.9°F on May 31, 2020.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. Throughout the month of May, the sea temperature gradually gets warmer. Starting with an average temperature of 51.9°F at the beginning of the month, it steadily increases to around 55.7°F by the end.
Date 10 years average 2024 2023
May 1 51.0°F 51.5°F 50.9°F
May 2 51.1°F 51.6°F 51.6°F
May 3 51.2°F 51.9°F 52.0°F
May 4 51.4°F 52.1°F 51.5°F
May 5 51.8°F 52.4°F 52.7°F
May 6 52.1°F 52.6°F 52.6°F
May 7 52.2°F 52.9°F 52.9°F
May 8 52.4°F 53.4°F 53.7°F
May 9 52.7°F 52.8°F 53.9°F
May 10 52.9°F 54.0°F 53.9°F
May 11 52.6°F 53.7°F 53.6°F
May 12 52.9°F 54.0°F 54.5°F
May 13 53.2°F 54.3°F 54.5°F
May 14 53.4°F 54.5°F 54.3°F
May 15 53.8°F 56.0°F 54.4°F
May 16 53.9°F 55.9°F 55.0°F
May 17 54.1°F 55.5°F 55.5°F
May 18 54.1°F 55.9°F 55.6°F
May 19 54.3°F 55.7°F 55.9°F
May 20 54.5°F 56.1°F 56.2°F
May 21 54.8°F 56.5°F 56.3°F
May 22 55.1°F 56.6°F 56.2°F
May 23 55.3°F 56.7°F 57.0°F
May 24 55.4°F 57.1°F 57.3°F
May 25 55.5°F 57.0°F 57.4°F
May 26 55.7°F 57.3°F 57.4°F
May 27 55.8°F 57.5°F 57.3°F
May 28 56.0°F 57.4°F 57.7°F
May 29 56.2°F 57.4°F 57.2°F
May 30 56.4°F 57.9°F 56.9°F
May 31 56.6°F 57.9°F 57.2°F

Sea water temperature in Calais by month

In an average year, Calais offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Calais was recorded on August 14, 2022, reaching a 70.3°F. While the coldest temperature occurred on March 2, 2018, dipping to 40.8°F. The average readings by season are 47.9°F in Winter, 49.9°F in Spring, 63.0°F in Summer, and 60.6°F in Autumn. The average temperature in May is slightly warmer than April's average of 49.4°F. And in June, the temperature is expected to rise further, potentially reaching an average of 59.4°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Boulogne-sur-Mer 55.1°F 19mi
Dunkerque 53.6°F 23mi
Canterbury 50.2°F 41mi

* current water temperature in this city

** straight line distance from Calais