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Vaasa in May

Find out everything about the water temperature in Vaasa 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:

35.0 °F

Average:

44.8 °F

Maximum:

57.8 °F

Sea water temperature in Vaasa in May

In the city of Vaasa, the month of May is too cold for swimming. The minimum recorded temperature during this month was 35.0°F on May 1, 2018, with an average temperature being 44.8°F and a maximum temperature reaching 57.8°F on May 30, 2018.

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 40.5°F at the beginning of the month, it steadily increases to around 48.9°F by the end.
Date 10 years average 2024 2023
May 1 38.0°F 35.3°F 35.3°F
May 2 38.5°F 36.9°F 35.2°F
May 3 39.3°F 37.0°F 36.6°F
May 4 39.6°F 37.0°F 35.8°F
May 5 40.4°F 39.9°F 37.9°F
May 6 40.9°F 42.2°F 38.5°F
May 7 41.4°F 42.0°F 38.6°F
May 8 41.8°F 42.2°F 39.3°F
May 9 42.2°F 41.3°F 42.0°F
May 10 42.8°F 41.4°F 43.1°F
May 11 42.9°F 41.5°F 44.1°F
May 12 43.6°F 42.2°F 43.2°F
May 13 43.9°F 42.6°F 44.1°F
May 14 44.3°F 42.9°F 41.9°F
May 15 44.4°F 43.0°F 41.5°F
May 16 44.8°F 43.4°F 43.3°F
May 17 45.1°F 43.7°F 43.5°F
May 18 45.2°F 43.9°F 43.3°F
May 19 45.2°F 43.9°F 44.7°F
May 20 46.0°F 44.6°F 46.0°F
May 21 46.9°F 45.5°F 48.4°F
May 22 47.0°F 45.7°F 46.5°F
May 23 47.4°F 46.0°F 49.1°F
May 24 48.0°F 46.6°F 51.8°F
May 25 48.1°F 46.8°F 51.7°F
May 26 48.7°F 47.3°F 52.6°F
May 27 49.3°F 47.9°F 54.2°F
May 28 49.6°F 48.2°F 54.4°F
May 29 50.4°F 49.0°F 52.4°F
May 30 51.4°F 50.0°F 53.6°F
May 31 51.7°F 50.4°F 53.2°F

Sea water temperature in Vaasa by month

In an average year, Vaasa offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Vaasa was recorded on July 1, 2022, reaching a 73.5°F. While the coldest temperature occurred on January 1, 2018, dipping to 32.0°F. The average readings by season are 32.5°F in Winter, 37.1°F in Spring, 61.7°F in Summer, and 47.3°F in Autumn. The average temperature in May is slightly warmer than April's average of 34.3°F. And in June, the temperature is expected to rise further, potentially reaching an average of 56.9°F.