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Swansea in May

Find out everything about the water temperature in Swansea 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:

49.0 °F

Average:

53.9 °F

Maximum:

59.7 °F

Sea water temperature in Swansea in May

In the city of Swansea, the month of May is too cold for swimming. The minimum recorded temperature during this month was 49.0°F on May 2, 2018, with an average temperature being 53.9°F and a maximum temperature reaching 59.7°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 51.8°F at the beginning of the month, it steadily increases to around 56.0°F by the end.
Date 10 years average 2024 2023
May 1 51.2°F 51.6°F 51.6°F
May 2 51.3°F 51.5°F 52.0°F
May 3 51.4°F 51.5°F 52.3°F
May 4 51.5°F 51.6°F 52.1°F
May 5 51.6°F 52.3°F 51.5°F
May 6 51.8°F 52.1°F 52.8°F
May 7 52.2°F 52.7°F 53.5°F
May 8 52.1°F 52.6°F 53.2°F
May 9 52.5°F 53.9°F 53.1°F
May 10 52.7°F 52.8°F 53.4°F
May 11 52.9°F 53.0°F 53.8°F
May 12 52.9°F 53.0°F 54.4°F
May 13 53.3°F 53.3°F 55.1°F
May 14 53.4°F 53.5°F 55.0°F
May 15 53.6°F 55.9°F 54.0°F
May 16 53.8°F 56.3°F 54.9°F
May 17 54.1°F 56.2°F 54.9°F
May 18 54.2°F 57.1°F 54.8°F
May 19 54.3°F 56.9°F 55.4°F
May 20 54.7°F 58.0°F 55.4°F
May 21 55.0°F 58.0°F 56.7°F
May 22 55.2°F 57.6°F 57.2°F
May 23 55.4°F 57.4°F 57.1°F
May 24 55.7°F 57.1°F 57.4°F
May 25 55.8°F 57.3°F 57.8°F
May 26 55.9°F 58.2°F 57.0°F
May 27 56.2°F 58.3°F 58.7°F
May 28 56.5°F 58.4°F 58.4°F
May 29 56.6°F 57.9°F 59.0°F
May 30 56.8°F 58.2°F 59.0°F
May 31 56.9°F 58.3°F 59.6°F

Sea water temperature in Swansea by month

In an average year, Swansea offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Swansea was recorded on August 14, 2022, reaching a 68.4°F. While the coldest temperature occurred on March 10, 2018, dipping to 42.2°F. The average readings by season are 47.3°F in Winter, 49.7°F in Spring, 62.7°F in Summer, and 59.3°F in Autumn. The average temperature in May is slightly warmer than April's average of 49.3°F. And in June, the temperature is expected to rise further, potentially reaching an average of 59.6°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Barry 53.0°F 32mi
Cardiff 52.3°F 34mi
Newport 51.3°F 41mi
Aberystwyth 52.2°F 55mi

* current water temperature in this city

** straight line distance from Swansea