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

65.0

°F

August 3, 01:36

Trend:

stable

Yesterday:

64.8°F

Tomorrow:

64.7°F

Sunrise:

05:04

Sunset:

21:48

Day Length:

16 h. 44 min.

Helsinki in August

Minimum:

32.0°F

Average:

34.7°F

Maximum:

37.8°F

Sea water temperature in Helsinki today

As of now, in Helsinki, the water temperature is 65.0°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. 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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 74.4°F on 2018, while the historical minimum was 57.6°F on 2023.

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 64.6°F, the minimum temperature may reach 64.0°F, and the maximum might stay at 64.9°F.

Daily water temperature in Helsinki

Date Current Year

actual* / forecast**

last year 10 years average
Jul 20 65.0°F 66.2°F 63.6°F
Jul 21 65.5°F 68.2°F 63.8°F
Jul 22 64.4°F 68.5°F 63.9°F
Jul 23 63.2°F 69.1°F 63.7°F
Jul 24 64.7°F 69.8°F 64.8°F
Jul 25 64.0°F 71.6°F 65.0°F
Jul 26 63.7°F 74.0°F 65.0°F
Jul 27 64.0°F 73.7°F 65.2°F
Jul 28 63.3°F 74.5°F 65.4°F
Jul 29 63.5°F 74.2°F 65.3°F
Jul 30 63.8°F 73.3°F 64.7°F
Jul 31 64.9°F 73.8°F 64.5°F
Aug 1 64.2°F 72.7°F 64.0°F
Aug 2 64.8°F 72.0°F 64.0°F
Aug 3 65.0°F 72.4°F 64.2°F
Aug 4 64.7°F 73.2°F 63.9°F
Aug 5 64.6°F 74.0°F 63.8°F
Aug 6 64.7°F 71.4°F 63.8°F
Aug 7 64.8°F 71.8°F 64.0°F
Aug 8 64.9°F 71.8°F 64.0°F
Aug 9 64.3°F 71.2°F 63.4°F
Aug 10 64.0°F 71.0°F 63.2°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, 60.6°F in Summer, and 51.2°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Porvoo 66.3°F 29mi
Maardu 64.6°F 49mi
Tallinn 64.0°F 51mi
Loo 64.5°F 51mi
Paldiski 65.0°F 64mi

* current water temperature in this city

** straight line distance from Helsinki