What is the current water temperature in Jakobstad?

Q: What is the current water temperature in Jakobstad?

As of now, in Jakobstad, the water temperature is 12.62°C. 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.

Finland > Jakobstad

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.

54.7

°F

June 17, 08:15

Trend:

stable

Yesterday:

54.9°F

Tomorrow:

54.9°F

Sunrise:

03:08

Sunset:

23:52

Day Length:

20 h. 44 min.

Jakobstad in June

Minimum:

32.0°F

Average:

32.5°F

Maximum:

33.5°F

Sea water temperature in Jakobstad today

As of now, in Jakobstad, the water temperature is 54.7°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 0.5°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 rise 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 falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 62.0°F on 2020, while the historical minimum was 48.0°F on 2017.

latest data

last year

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 maximum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 56.1°F, with minimum temperature starting at 54.9°F, while the maximum might reach 56.8°F.

Daily water temperature in Jakobstad

Date	Current Year actual* / forecast**	last year	10 years average
Jun 3	52.8°F	50.6°F	49.1°F
Jun 4	52.6°F	50.6°F	49.0°F
Jun 5	53.7°F	49.7°F	49.3°F
Jun 6	55.0°F	52.8°F	50.1°F
Jun 7	55.1°F	51.1°F	50.1°F
Jun 8	55.4°F	51.7°F	50.7°F
Jun 9	55.9°F	51.8°F	51.0°F
Jun 10	56.3°F	52.4°F	51.0°F
Jun 11	56.4°F	53.3°F	51.5°F
Jun 12	55.9°F	52.4°F	52.3°F
Jun 13	54.8°F	54.4°F	53.2°F
Jun 14	54.6°F	54.5°F	53.4°F
Jun 15	55.1°F	54.6°F	54.1°F
Jun 16	54.9°F	53.5°F	55.4°F
Jun 17	54.7°F	53.5°F	55.2°F
Jun 18	54.9°F	54.7°F	55.4°F
Jun 19	55.6°F	56.4°F	56.1°F
Jun 20	55.9°F	57.8°F	56.4°F
Jun 21	56.2°F	58.7°F	56.6°F
Jun 22	56.7°F	57.2°F	57.2°F
Jun 23	56.6°F	56.6°F	57.0°F
Jun 24	56.8°F	56.2°F	57.3°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, 36.0°F in Spring, 59.8°F in Summer, and 47.2°F in Autumn.