All data are in degrees Fahrenheit

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Helsinki in August

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

55.0 °F

Average:

62.9 °F

Maximum:

74.4 °F

Sea water temperature in Helsinki in August

In the city of Helsinki, the month of August is somewhat too cool for swimming. The minimum recorded temperature during this month was 55.0°F on August 5, 2021, with an average temperature being 62.9°F and a maximum temperature reaching 74.4°F on August 3, 2018.

Most people would find such water temperature somewhat too cold for swimming. In August, the sea temperature remains relatively stable. The average temperature stays close to 62.9°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Aug 1 62.6°F 67.7°F 56.0°F
Aug 2 62.7°F 67.5°F 56.4°F
Aug 3 62.8°F 67.2°F 57.6°F
Aug 4 62.5°F 67.1°F 58.0°F
Aug 5 62.2°F 67.9°F 59.5°F
Aug 6 62.5°F 67.3°F 60.4°F
Aug 7 62.8°F 67.7°F 63.2°F
Aug 8 63.0°F 68.0°F 63.6°F
Aug 9 63.3°F 69.1°F 62.0°F
Aug 10 63.1°F 68.8°F 62.4°F
Aug 11 62.7°F 68.5°F 61.9°F
Aug 12 62.2°F 68.0°F 62.1°F
Aug 13 62.6°F 68.4°F 61.8°F
Aug 14 62.9°F 68.7°F 63.5°F
Aug 15 62.5°F 68.3°F 65.0°F
Aug 16 63.2°F 66.6°F 64.0°F
Aug 17 63.4°F 66.2°F 65.0°F
Aug 18 63.7°F 65.9°F 66.2°F
Aug 19 63.9°F 65.8°F 65.8°F
Aug 20 63.6°F 64.9°F 65.4°F
Aug 21 63.5°F 65.1°F 63.8°F
Aug 22 63.6°F 65.5°F 63.6°F
Aug 23 63.4°F 65.1°F 64.3°F
Aug 24 63.5°F 64.0°F 65.0°F
Aug 25 63.1°F 62.9°F 64.5°F
Aug 26 63.0°F 62.4°F 65.0°F
Aug 27 62.8°F 62.0°F 65.4°F
Aug 28 62.5°F 61.4°F 64.9°F
Aug 29 62.3°F 61.2°F 63.8°F
Aug 30 62.3°F 62.6°F 64.2°F
Aug 31 62.0°F 61.7°F 63.9°F

Sea water temperature in Helsinki by month

In an average year, Helsinki offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Helsinki was recorded on July 17, 2021, reaching a 75.7°F. While the coldest temperature occurred on January 8, 2022, dipping to 32.0°F. The average readings by season are 35.2°F in Winter, 38.3°F in Spring, 60.2°F in Summer, and 51.2°F in Autumn. In August, the temperature is higher than July's average of 61.9°F and September's average of 58.8°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Porvoo 33.4°F 29mi
Maardu 34.8°F 49mi
Tallinn 34.8°F 51mi
Loo 34.8°F 51mi
Paldiski 35.7°F 64mi

* current water temperature in this city

** straight line distance from Helsinki