All data are in degrees Fahrenheit

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Water temperature in Wismar

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

38.7

°F

March 30, 06:43

Trend:

increasing

Yesterday:

38.4°F

Tomorrow:

38.9°F

Sunrise:

06:53

Sunset:

19:46

Day Length:

12 h. 53 min.

Wismar in April

Minimum:

34.3°F

Average:

38.4°F

Maximum:

40.4°F

Sea water temperature in Wismar today

As of now, in Wismar, the water temperature is 38.7°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 4.0°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 rise a bit.

Recent sea temperature and forecast

Today's water temperature slightly varies from the average of the past two weeks. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 45.3°F on 2025, while the historical minimum was 36.2°F on 2018.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 39.3°F, with minimum temperature starting at 38.9°F, while the maximum might reach 40.0°F.

Daily water temperature in Wismar

Date Current Year

actual* / forecast**

last year 10 years average
Mar 16 36.9°F 39.8°F 38.7°F
Mar 17 40.1°F 39.7°F 39.2°F
Mar 18 40.3°F 41.3°F 38.9°F
Mar 19 39.2°F 40.2°F 39.0°F
Mar 20 38.2°F 39.4°F 38.8°F
Mar 21 35.7°F 40.2°F 38.7°F
Mar 22 38.2°F 43.4°F 39.6°F
Mar 23 40.7°F 43.3°F 39.9°F
Mar 24 38.8°F 43.3°F 39.9°F
Mar 25 38.0°F 42.6°F 40.1°F
Mar 26 36.9°F 41.1°F 40.2°F
Mar 27 40.1°F 43.2°F 42.0°F
Mar 28 40.0°F 44.3°F 42.3°F
Mar 29 38.4°F 45.0°F 42.4°F
Mar 30 38.7°F 45.3°F 42.7°F
Mar 31 38.9°F 44.5°F 42.9°F
Apr 1 39.0°F 44.3°F 42.9°F
Apr 2 39.0°F 45.2°F 43.0°F
Apr 3 39.4°F 46.1°F 43.3°F
Apr 4 39.3°F 47.3°F 43.3°F
Apr 5 39.8°F 50.0°F 43.7°F
Apr 6 40.0°F 48.7°F 44.0°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 Wismar by month

In an average year, Wismar offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Wismar was recorded on July 27, 2018, reaching a 73.7°F. While the coldest temperature occurred on January 21, 2024, dipping to 32.0°F. The average readings by season are 37.3°F in Winter, 46.9°F in Spring, 66.4°F in Summer, and 54.9°F in Autumn.