All data are in degrees Fahrenheit

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Water temperature in Warsaw

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

69.7

°F

September 30, 00:34

Trend:

stable

Yesterday:

68.9°F

Tomorrow:

69.0°F

Sunrise:

07:02

Sunset:

18:52

Day Length:

11 h. 50 min.

Warsaw in October

Minimum:

33.5°F

Average:

41.7°F

Maximum:

46.0°F

Sea water temperature in Warsaw today

As of now, in Warsaw, the water temperature is 69.7°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 3.6°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. 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 76.2°F on 2025, while the historical minimum was 70.8°F on 2020.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest 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 68.3°F, the minimum temperature may reach 67.8°F, and the maximum might stay at 69.0°F.

Daily water temperature in Warsaw

Date Current Year

actual* / forecast**

last year 10 years average
Sep 16 80.0°F 73.8°F 76.7°F
Sep 17 78.6°F 73.9°F 76.4°F
Sep 18 77.8°F 73.9°F 76.3°F
Sep 19 79.1°F 73.8°F 76.2°F
Sep 20 79.4°F 71.3°F 76.0°F
Sep 21 78.7°F 72.4°F 75.9°F
Sep 22 78.6°F 75.1°F 75.7°F
Sep 23 77.6°F 72.1°F 75.4°F
Sep 24 75.4°F 72.9°F 74.9°F
Sep 25 73.6°F 73.8°F 74.3°F
Sep 26 70.9°F 73.3°F 73.5°F
Sep 27 69.7°F 72.7°F 73.0°F
Sep 28 69.1°F 72.2°F 72.6°F
Sep 29 68.9°F 70.5°F 72.6°F
Sep 30 69.7°F 76.2°F 73.3°F
Oct 1 69.0°F 75.1°F 72.6°F
Oct 2 68.3°F 73.5°F 71.9°F
Oct 3 68.1°F 73.3°F 71.7°F
Oct 4 68.3°F 72.7°F 72.0°F
Oct 5 68.4°F 71.3°F 72.0°F
Oct 6 68.2°F 71.3°F 71.8°F
Oct 7 67.8°F 71.9°F 71.4°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 Warsaw by month

In Warsaw, the months June through September offer comfortable swimming conditions, which amounts to 117 swimming days.
The warmest water in Warsaw was recorded on July 23, 2019, reaching a 88.9°F. While the coldest temperature occurred on February 9, 2026, dipping to 32.0°F. The average readings by season are 42.5°F in Winter, 58.4°F in Spring, 80.4°F in Summer, and 66.9°F in Autumn.