What is the current water temperature in Hamburg?

Q: What is the current water temperature in Hamburg?

As of now, in Hamburg, the water temperature is 9.34°C. 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.

Germany > Hamburg

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.

48.8

°F

April 17, 06:07

Trend:

increasing

Yesterday:

48.4°F

Tomorrow:

49.1°F

Sunrise:

06:17

Sunset:

20:24

Day Length:

14 h. 7 min.

Hamburg in April

Minimum:

38.2°F

Average:

40.6°F

Maximum:

43.6°F

Sea water temperature in Hamburg today

As of now, in Hamburg, the water temperature is 48.8°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 1.2°F higher 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 is notably higher than the average recorded over the past two weeks, indicating a significant warming 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 55.6°F on 2025, while the historical minimum was 43.7°F on 2018.

latest data

last year

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 49.8°F, with minimum temperature starting at 49.1°F, while the maximum might reach 51.0°F.

Daily water temperature in Hamburg

Date	Current Year actual* / forecast**	last year	10 years average
Apr 3	45.6°F	48.3°F	45.6°F
Apr 4	47.3°F	48.8°F	45.9°F
Apr 5	47.8°F	48.2°F	46.1°F
Apr 6	47.3°F	48.2°F	46.5°F
Apr 7	46.1°F	48.0°F	47.1°F
Apr 8	46.7°F	48.2°F	47.4°F
Apr 9	46.8°F	46.6°F	47.4°F
Apr 10	48.9°F	46.8°F	47.5°F
Apr 11	47.3°F	47.0°F	47.6°F
Apr 12	46.7°F	47.3°F	48.0°F
Apr 13	47.9°F	50.1°F	48.1°F
Apr 14	47.2°F	48.8°F	47.5°F
Apr 15	47.5°F	50.3°F	47.4°F
Apr 16	48.4°F	52.1°F	47.2°F
Apr 17	48.8°F	55.6°F	47.6°F
Apr 18	49.1°F	56.7°F	48.0°F
Apr 19	49.1°F	55.6°F	47.9°F
Apr 20	49.2°F	53.2°F	48.0°F
Apr 21	49.5°F	51.8°F	48.3°F
Apr 22	50.0°F	52.5°F	48.9°F
Apr 23	50.6°F	53.4°F	49.4°F
Apr 24	51.0°F	53.4°F	49.8°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, 48.0°F in Spring, 66.2°F in Summer, and 56.5°F in Autumn.