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

34.3

°F

April 8, 17:11

Trend:

increasing

Yesterday:

32.0°F

Tomorrow:

34.5°F

Sunrise:

06:25

Sunset:

20:39

Day Length:

14 h. 14 min.

Jakobstad in April

Minimum:

32.0°F

Average:

32.6°F

Maximum:

33.9°F

Sea water temperature in Jakobstad today

As of now, in Jakobstad, the water temperature is 34.3°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. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 35.2°F on 2020, while the historical minimum was 32.0°F on 2018.

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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 34.6°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Jakobstad

Date Current Year

actual* / forecast**

last year 10 years average
Mar 25 37.5°F 32.8°F 32.8°F
Mar 26 36.5°F 32.1°F 32.6°F
Mar 27 35.8°F 32.0°F 32.7°F
Mar 28 34.2°F 32.0°F 32.6°F
Mar 29 33.5°F 32.0°F 32.6°F
Mar 30 34.1°F 33.6°F 32.7°F
Mar 31 33.3°F 33.3°F 32.7°F
Apr 1 32.0°F 32.0°F 32.5°F
Apr 2 33.0°F 32.7°F 32.4°F
Apr 3 32.3°F 32.4°F 32.4°F
Apr 4 33.6°F 34.3°F 32.5°F
Apr 5 32.0°F 33.2°F 32.2°F
Apr 6 32.0°F 33.9°F 32.4°F
Apr 7 32.0°F 33.8°F 32.4°F
Apr 8 34.3°F 32.1°F 32.6°F
Apr 9 34.5°F 34.0°F 32.8°F
Apr 10 34.5°F 32.1°F 32.8°F
Apr 11 34.4°F 32.0°F 32.7°F
Apr 12 34.3°F 32.3°F 32.6°F
Apr 13 34.6°F 34.3°F 32.9°F
Apr 14 34.6°F 34.1°F 32.9°F
Apr 15 35.0°F 38.0°F 33.3°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 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, 35.7°F in Spring, 59.7°F in Summer, and 47.2°F in Autumn.