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

48.6

°F

May 18, 18:36

Trend:

stable

Yesterday:

49.4°F

Tomorrow:

49.1°F

Sunrise:

04:37

Sunset:

20:48

Day Length:

16 h. 11 min.

Gdańsk in May

Minimum:

37.3°F

Average:

39.2°F

Maximum:

40.9°F

Sea water temperature in Gdańsk today

As of now, in Gdańsk, the water temperature is 48.6°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 2.7°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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 59.0°F on 2018, while the historical minimum was 48.5°F on 2015.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 50.1°F, with minimum temperature starting at 49.1°F, while the maximum might reach 51.3°F.

Daily water temperature in Gdańsk

Date Current Year

actual* / forecast**

last year 10 years average
May 4 49.4°F 45.3°F 46.1°F
May 5 49.1°F 46.4°F 46.8°F
May 6 49.6°F 48.6°F 47.4°F
May 7 48.5°F 48.0°F 47.3°F
May 8 48.3°F 49.9°F 48.3°F
May 9 47.9°F 51.3°F 48.5°F
May 10 48.7°F 52.2°F 49.3°F
May 11 48.8°F 52.3°F 49.4°F
May 12 48.9°F 52.4°F 49.5°F
May 13 49.2°F 52.6°F 49.7°F
May 14 50.4°F 53.3°F 50.3°F
May 15 50.8°F 54.4°F 51.4°F
May 16 49.9°F 54.2°F 51.4°F
May 17 49.4°F 53.1°F 51.1°F
May 18 48.6°F 52.5°F 51.3°F
May 19 49.1°F 55.5°F 51.8°F
May 20 49.2°F 55.2°F 51.9°F
May 21 49.1°F 56.2°F 51.8°F
May 22 50.4°F 58.5°F 53.1°F
May 23 50.8°F 60.1°F 53.5°F
May 24 50.8°F 58.7°F 53.5°F
May 25 51.3°F 57.5°F 54.0°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, 65.0°F in Summer, and 55.5°F in Autumn.