All data are in degrees Fahrenheit

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Water temperature in Hoorn

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

73.2

°F

July 3, 03:10

Trend:

decreasing

Yesterday:

74.1°F

Tomorrow:

72.9°F

Sunrise:

05:22

Sunset:

22:06

Day Length:

16 h. 44 min.

Hoorn in July

Minimum:

35.2°F

Average:

41.4°F

Maximum:

44.5°F

Sea water temperature in Hoorn today

As of now, in Hoorn, the water temperature is 73.2°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 6.1°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 fall 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 70.5°F on 2025, while the historical minimum was 62.7°F on 2016.

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 72.6°F, the minimum temperature may reach 72.1°F, and the maximum might stay at 73.1°F.

Daily water temperature in Hoorn

Date Current Year

actual* / forecast**

last year 10 years average
Jun 19 64.1°F 68.7°F 66.4°F
Jun 20 65.0°F 68.5°F 66.7°F
Jun 21 66.8°F 68.5°F 67.0°F
Jun 22 68.5°F 70.3°F 67.0°F
Jun 23 68.6°F 69.1°F 66.8°F
Jun 24 71.2°F 68.4°F 67.5°F
Jun 25 72.9°F 67.9°F 68.2°F
Jun 26 74.2°F 69.0°F 69.0°F
Jun 27 75.7°F 67.2°F 68.9°F
Jun 28 75.1°F 67.4°F 68.9°F
Jun 29 75.7°F 68.0°F 68.8°F
Jun 30 75.4°F 68.8°F 68.9°F
Jul 1 74.2°F 69.3°F 68.8°F
Jul 2 74.1°F 71.6°F 68.0°F
Jul 3 73.2°F 70.5°F 67.1°F
Jul 4 72.9°F 71.5°F 66.8°F
Jul 5 73.1°F 70.8°F 67.0°F
Jul 6 72.9°F 70.6°F 66.8°F
Jul 7 72.3°F 70.2°F 66.2°F
Jul 8 72.3°F 68.4°F 66.2°F
Jul 9 72.4°F 66.7°F 66.4°F
Jul 10 72.1°F 67.4°F 66.0°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 Hoorn by month

In an average year, Hoorn offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Hoorn was recorded on August 17, 2020, reaching a 76.7°F. While the coldest temperature occurred on March 3, 2018, dipping to 32.8°F. The average readings by season are 40.4°F in Winter, 50.8°F in Spring, 67.3°F in Summer, and 55.9°F in Autumn.