All data are in degrees Fahrenheit

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Water temperature in Gdańsk

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

38.9

°F

December 31, 08:25

Trend:

decreasing

Yesterday:

39.0°F

Tomorrow:

37.0°F

Sunrise:

08:07

Sunset:

15:30

Day Length:

7 h. 23 min.

Gdańsk in January

Minimum:

36.1°F

Average:

38.5°F

Maximum:

41.9°F

Sea water temperature in Gdańsk today

As of now, in Gdańsk, the water temperature is 38.9°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 1.5°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 fall considerably.

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 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 42.7°F on 2015, while the historical minimum was 37.3°F on 2021.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 37.6°F, the minimum temperature may reach 37.0°F, and the maximum might stay at 37.8°F.

Daily water temperature in Gdańsk

Date Current Year

actual* / forecast**

last year 10 years average
Jan 1 37.0°F 37.5°F 38.5°F
Jan 2 37.6°F 37.9°F 39.1°F
Jan 3 37.8°F 38.9°F 39.2°F
Jan 4 37.8°F 40.3°F 39.3°F
Jan 5 37.8°F 39.9°F 39.2°F
Jan 6 37.7°F 39.5°F 39.2°F
Jan 7 37.5°F 39.3°F 38.9°F
Dec 17 44.4°F 41.5°F 42.0°F
Dec 18 43.4°F 42.4°F 40.8°F
Dec 19 43.1°F 41.8°F 40.9°F
Dec 20 42.6°F 41.8°F 40.9°F
Dec 21 42.0°F 42.1°F 40.9°F
Dec 22 41.9°F 42.5°F 41.3°F
Dec 23 42.5°F 42.4°F 41.4°F
Dec 24 42.2°F 42.0°F 41.3°F
Dec 25 42.5°F 41.8°F 41.0°F
Dec 26 42.2°F 41.7°F 40.8°F
Dec 27 41.5°F 41.0°F 40.7°F
Dec 28 41.3°F 40.6°F 40.6°F
Dec 29 39.9°F 40.5°F 40.3°F
Dec 30 39.0°F 40.2°F 40.5°F
Dec 31 38.9°F 39.8°F 40.4°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 Gdańsk by month

In an average year, Gdańsk offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Gdańsk was recorded on August 3, 2018, reaching a 75.4°F. While the coldest temperature occurred on February 27, 2025, dipping to 32.0°F. The average readings by season are 38.9°F in Winter, 43.6°F in Spring, 64.9°F in Summer, and 55.5°F in Autumn.