All data are in degrees Fahrenheit

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Water temperature in Hamburg

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

67.4

°F

August 18, 21:31

Trend:

increasing

Yesterday:

67.3°F

Tomorrow:

68.1°F

Sunrise:

06:04

Sunset:

20:43

Day Length:

14 h. 39 min.

Hamburg in August

Minimum:

37.0°F

Average:

40.0°F

Maximum:

44.6°F

Sea water temperature in Hamburg today

As of now, in Hamburg, the water temperature is 67.4°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 1.8°F higher 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 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 70.6°F on 2025, while the historical minimum was 61.6°F on 2016.

Over the last two weeks, the water temperature has stayed slightly above 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 69.0°F, with minimum temperature starting at 68.1°F, while the maximum might reach 69.7°F.

Daily water temperature in Hamburg

Date Current Year

actual* / forecast**

last year 10 years average
Aug 4 70.0°F 69.0°F 70.1°F
Aug 5 71.3°F 68.5°F 69.7°F
Aug 6 70.1°F 68.2°F 69.2°F
Aug 7 68.8°F 67.7°F 69.0°F
Aug 8 68.6°F 67.2°F 68.5°F
Aug 9 68.7°F 66.8°F 68.1°F
Aug 10 68.8°F 66.7°F 68.1°F
Aug 11 68.4°F 66.3°F 67.7°F
Aug 12 68.8°F 65.9°F 67.1°F
Aug 13 68.2°F 65.9°F 66.4°F
Aug 14 67.7°F 67.0°F 65.9°F
Aug 15 68.6°F 67.6°F 65.9°F
Aug 16 68.3°F 70.8°F 66.0°F
Aug 17 67.3°F 71.3°F 65.5°F
Aug 18 67.4°F 70.6°F 65.6°F
Aug 19 68.1°F 69.6°F 66.3°F
Aug 20 68.2°F 69.4°F 66.5°F
Aug 21 68.9°F 71.0°F 67.1°F
Aug 22 69.3°F 70.7°F 67.6°F
Aug 23 69.4°F 70.7°F 67.7°F
Aug 24 69.7°F 70.6°F 67.9°F
Aug 25 69.5°F 70.0°F 67.7°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 Hamburg by month

In an average year, Hamburg offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Hamburg was recorded on August 2, 2018, reaching a 74.2°F. While the coldest temperature occurred on January 23, 2026, dipping to 32.0°F. The average readings by season are 39.2°F in Winter, 48.1°F in Spring, 66.3°F in Summer, and 56.5°F in Autumn.