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 5.72°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.

42.3

°F

October 26, 02:50

Trend:

decreasing

Yesterday:

42.5°F

Tomorrow:

41.9°F

Sunrise:

07:49

Sunset:

16:35

Day Length:

8 h. 46 min.

Jakobstad in November

Minimum:

32.0°F

Average:

32.2°F

Maximum:

33.4°F

Sea water temperature in Jakobstad today

As of now, in Jakobstad, the water temperature is 42.3°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 1.2°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 fall a bit.

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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 45.6°F on 2017, while the historical minimum was 42.0°F on 2023.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 41.6°F, the minimum temperature may reach 41.0°F, and the maximum might stay at 42.1°F.

Daily water temperature in Jakobstad

Date	Current Year actual* / forecast**	last year	10 years average
Oct 12	46.7°F	46.9°F	47.2°F
Oct 13	45.5°F	45.9°F	46.5°F
Oct 14	43.8°F	46.5°F	46.4°F
Oct 15	43.8°F	46.6°F	46.4°F
Oct 16	44.2°F	46.1°F	46.1°F
Oct 17	45.5°F	44.5°F	45.8°F
Oct 18	44.3°F	43.4°F	45.4°F
Oct 19	42.9°F	42.5°F	44.9°F
Oct 20	42.9°F	41.7°F	44.7°F
Oct 21	41.1°F	41.9°F	44.2°F
Oct 22	40.4°F	41.2°F	44.3°F
Oct 23	41.9°F	41.6°F	44.5°F
Oct 24	42.1°F	41.8°F	43.8°F
Oct 25	42.5°F	42.0°F	43.7°F
Oct 26	42.3°F	42.2°F	43.5°F
Oct 27	41.9°F	42.4°F	43.2°F
Oct 28	42.0°F	43.6°F	43.2°F
Oct 29	41.9°F	43.5°F	43.1°F
Oct 30	42.1°F	43.6°F	43.3°F
Oct 31	41.3°F	43.5°F	42.5°F
Nov 1	41.0°F	43.6°F	42.2°F
Nov 2	41.2°F	43.5°F	42.4°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.