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 15.44°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.

59.8

°F

August 13, 23:55

Trend:

stable

Yesterday:

59.7°F

Tomorrow:

59.6°F

Sunrise:

05:16

Sunset:

21:51

Day Length:

16 h. 35 min.

Jakobstad in August

Minimum:

32.0°F

Average:

32.3°F

Maximum:

34.0°F

Sea water temperature in Jakobstad today

As of now, in Jakobstad, the water temperature is 59.8°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 3.1°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 67.3°F on 2018, while the historical minimum was 59.5°F on 2019.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 59.6°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
Jul 30	61.5°F	71.6°F	64.9°F
Jul 31	62.1°F	71.3°F	65.5°F
Aug 1	61.1°F	71.7°F	65.0°F
Aug 2	61.0°F	70.3°F	64.3°F
Aug 3	61.2°F	71.4°F	64.4°F
Aug 4	62.1°F	70.8°F	64.8°F
Aug 5	62.4°F	69.8°F	64.7°F
Aug 6	62.7°F	69.0°F	64.8°F
Aug 7	61.5°F	68.1°F	64.3°F
Aug 8	61.0°F	66.5°F	64.1°F
Aug 9	60.7°F	66.2°F	63.8°F
Aug 10	61.6°F	65.8°F	63.4°F
Aug 11	60.6°F	65.1°F	62.7°F
Aug 12	59.7°F	64.1°F	62.4°F
Aug 13	59.8°F	63.5°F	62.9°F
Aug 14	59.6°F	64.2°F	62.8°F
Aug 15	59.8°F	64.3°F	62.9°F
Aug 16	59.9°F	63.8°F	63.1°F
Aug 17	60.0°F	63.8°F	63.2°F
Aug 18	59.5°F	62.4°F	62.7°F
Aug 19	59.0°F	62.3°F	62.2°F
Aug 20	59.5°F	62.1°F	62.6°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.