All data are in degrees Fahrenheit

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Water temperature in Jakobstad

Detailed information about the current water temperature in Jakobstad. 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 Jakobstad now

61.5

°F

September 1, 08:42

Trend:

decreasing

Yesterday:

61.7°F

Tomorrow:

61.4°F

Sunrise:

06:12

Sunset:

20:45

Day Length:

14 h. 33 min.

Jakobstad in September

Minimum:

32.0°F

Average:

32.5°F

Maximum:

34.1°F

Sea water temperature in Jakobstad today

As of now, in Jakobstad, the water temperature is 61.5°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 2.3°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 stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 62.4°F on 2019, while the historical minimum was 55.6°F on 2017.

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 60.5°F, the minimum temperature may reach 60.0°F, and the maximum might stay at 61.4°F.

Daily water temperature in Jakobstad

Date Current Year

actual* / forecast**

last year 10 years average
Aug 18 61.1°F 62.4°F 62.5°F
Aug 19 60.4°F 62.3°F 62.0°F
Aug 20 60.6°F 62.1°F 62.4°F
Aug 21 60.5°F 61.6°F 62.2°F
Aug 22 60.6°F 60.5°F 62.0°F
Aug 23 59.8°F 59.1°F 61.3°F
Aug 24 61.3°F 57.7°F 60.8°F
Aug 25 60.9°F 58.0°F 60.3°F
Aug 26 60.1°F 58.6°F 60.4°F
Aug 27 60.5°F 58.0°F 59.8°F
Aug 28 60.6°F 58.2°F 59.8°F
Aug 29 61.6°F 58.0°F 59.5°F
Aug 30 60.9°F 58.5°F 60.0°F
Aug 31 61.7°F 58.1°F 59.3°F
Sep 1 61.5°F 59.3°F 59.1°F
Sep 2 61.4°F 58.8°F 59.0°F
Sep 3 60.9°F 58.4°F 58.6°F
Sep 4 60.7°F 58.3°F 58.3°F
Sep 5 60.5°F 58.8°F 58.2°F
Sep 6 60.0°F 59.8°F 57.7°F
Sep 7 60.0°F 60.8°F 57.7°F
Sep 8 60.0°F 60.9°F 57.6°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 Jakobstad by month

In an average year, Jakobstad offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Jakobstad was recorded on July 25, 2025, reaching a 72.4°F. While the coldest temperature occurred on January 1, 2023, dipping to 32.0°F. The average readings by season are 33.2°F in Winter, 36.0°F in Spring, 59.7°F in Summer, and 47.2°F in Autumn.