All data are in degrees Fahrenheit

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Water temperature in Helsinki

Detailed information about the current water temperature in Helsinki. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Helsinki now

54.1

°F

June 8, 13:01

Trend:

stable

Yesterday:

53.4°F

Tomorrow:

53.9°F

Sunrise:

03:59

Sunset:

22:40

Day Length:

18 h. 41 min.

Helsinki in June

Minimum:

32.7°F

Average:

35.3°F

Maximum:

38.3°F

Sea water temperature in Helsinki today

As of now, in Helsinki, the water temperature is 54.1°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.8°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 61.5°F on 2024, while the historical minimum was 47.1°F on 2017.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 55.2°F, with minimum temperature starting at 53.9°F, while the maximum might reach 56.0°F.

Daily water temperature in Helsinki

Date Current Year

actual* / forecast**

last year 10 years average
May 25 47.8°F 49.0°F 49.4°F
May 26 49.9°F 49.1°F 49.5°F
May 27 50.5°F 49.9°F 50.0°F
May 28 51.7°F 50.7°F 50.4°F
May 29 51.8°F 52.3°F 50.8°F
May 30 51.6°F 55.8°F 51.7°F
May 31 52.3°F 57.5°F 52.1°F
Jun 1 53.2°F 62.3°F 52.8°F
Jun 2 54.1°F 63.5°F 52.7°F
Jun 3 52.4°F 63.7°F 52.9°F
Jun 4 53.2°F 65.6°F 53.0°F
Jun 5 53.8°F 65.4°F 53.1°F
Jun 6 53.2°F 64.3°F 53.1°F
Jun 7 53.4°F 61.0°F 53.2°F
Jun 8 54.1°F 61.5°F 53.3°F
Jun 9 53.9°F 57.8°F 53.1°F
Jun 10 54.1°F 56.1°F 53.2°F
Jun 11 55.1°F 56.7°F 54.3°F
Jun 12 55.5°F 55.1°F 54.7°F
Jun 13 55.8°F 55.8°F 55.0°F
Jun 14 56.0°F 55.5°F 55.2°F
Jun 15 55.9°F 55.7°F 55.1°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

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, 38.4°F in Spring, 60.2°F in Summer, and 51.2°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Porvoo 57.7°F 29mi
Maardu 53.4°F 49mi
Tallinn 53.2°F 51mi
Loo 53.4°F 51mi
Paldiski 55.2°F 64mi

* current water temperature in this city

** straight line distance from Helsinki