All data are in degrees Fahrenheit

en

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

55.3

°F

October 4, 12:59

Trend:

decreasing

Yesterday:

55.9°F

Tomorrow:

55.0°F

Sunrise:

07:32

Sunset:

18:45

Day Length:

11 h. 13 min.

Helsinki in October

Minimum:

32.0°F

Average:

34.8°F

Maximum:

37.6°F

Sea water temperature in Helsinki today

As of now, in Helsinki, the water temperature is 55.3°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 1.7°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling 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 57.4°F on 2023, while the historical minimum was 50.8°F on 2021.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 54.2°F, the minimum temperature may reach 53.3°F, and the maximum might stay at 55.0°F.

Daily water temperature in Helsinki

Date Current Year

actual* / forecast**

last year 10 years average
Sep 20 57.3°F 60.9°F 57.6°F
Sep 21 58.0°F 60.3°F 57.6°F
Sep 22 56.8°F 61.6°F 57.4°F
Sep 23 56.6°F 59.8°F 56.9°F
Sep 24 55.7°F 56.1°F 56.5°F
Sep 25 56.0°F 54.0°F 56.2°F
Sep 26 55.7°F 54.4°F 56.0°F
Sep 27 54.5°F 54.3°F 55.7°F
Sep 28 55.0°F 55.3°F 55.9°F
Sep 29 55.4°F 55.5°F 55.7°F
Sep 30 55.2°F 55.2°F 55.3°F
Oct 1 55.7°F 54.9°F 55.2°F
Oct 2 55.0°F 54.1°F 54.3°F
Oct 3 55.9°F 54.1°F 54.2°F
Oct 4 55.3°F 53.0°F 53.6°F
Oct 5 55.0°F 53.0°F 53.3°F
Oct 6 54.9°F 52.7°F 53.2°F
Oct 7 54.6°F 53.3°F 52.9°F
Oct 8 54.3°F 53.0°F 52.5°F
Oct 9 53.7°F 52.6°F 52.0°F
Oct 10 53.6°F 53.0°F 51.9°F
Oct 11 53.3°F 53.0°F 51.6°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, 38.5°F in Spring, 60.5°F in Summer, and 51.2°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Porvoo 51.7°F 29mi
Maardu 58.1°F 49mi
Tallinn 57.7°F 51mi
Loo 58.2°F 51mi
Paldiski 58.9°F 64mi

* current water temperature in this city

** straight line distance from Helsinki