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

47.3

°F

October 26, 08:49

Trend:

decreasing

Yesterday:

47.6°F

Tomorrow:

47.2°F

Sunrise:

07:27

Sunset:

16:41

Day Length:

9 h. 14 min.

Helsinki in November

Minimum:

32.1°F

Average:

34.7°F

Maximum:

37.8°F

Sea water temperature in Helsinki today

As of now, in Helsinki, the water temperature is 47.3°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 1.0°F lower 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 stay about the same.

Recent sea temperature and forecast

Today's water temperature is considerably 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 50.9°F on 2024, while the historical minimum was 45.5°F on 2022.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 46.2°F, the minimum temperature may reach 45.3°F, and the maximum might stay at 47.2°F.

Daily water temperature in Helsinki

Date Current Year

actual* / forecast**

last year 10 years average
Oct 12 52.6°F 54.6°F 51.4°F
Oct 13 50.2°F 53.7°F 50.6°F
Oct 14 52.0°F 53.5°F 50.8°F
Oct 15 51.6°F 54.0°F 50.6°F
Oct 16 51.2°F 53.2°F 50.5°F
Oct 17 50.5°F 52.1°F 50.5°F
Oct 18 50.0°F 51.6°F 49.9°F
Oct 19 50.1°F 52.4°F 49.9°F
Oct 20 49.7°F 53.0°F 49.7°F
Oct 21 49.5°F 51.9°F 49.4°F
Oct 22 47.4°F 51.5°F 49.2°F
Oct 23 47.6°F 51.2°F 49.0°F
Oct 24 47.5°F 50.8°F 48.7°F
Oct 25 47.6°F 50.5°F 48.6°F
Oct 26 47.3°F 50.9°F 48.3°F
Oct 27 47.2°F 51.6°F 48.2°F
Oct 28 46.7°F 50.6°F 47.7°F
Oct 29 46.5°F 49.2°F 47.5°F
Oct 30 46.1°F 48.7°F 47.1°F
Oct 31 45.9°F 48.3°F 47.0°F
Nov 1 45.8°F 47.9°F 46.8°F
Nov 2 45.3°F 47.6°F 46.3°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 46.8°F 29mi
Maardu 49.2°F 49mi
Tallinn 49.3°F 51mi
Loo 49.2°F 51mi
Paldiski 50.1°F 64mi

* current water temperature in this city

** straight line distance from Helsinki