All data are in degrees Fahrenheit

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Water temperature in Dunkerque

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

68.8

°F

July 22, 16:49

Trend:

stable

Yesterday:

69.2°F

Tomorrow:

68.9°F

Sunrise:

06:01

Sunset:

21:52

Day Length:

15 h. 51 min.

Dunkerque in July

Minimum:

42.6°F

Average:

47.1°F

Maximum:

50.3°F

Sea water temperature in Dunkerque today

As of now, in Dunkerque, the water temperature is 68.8°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 2.7°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 stay about the same.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 67.7°F on 2025, while the historical minimum was 64.9°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 suggests a gradual increase. The average temperature is expected to rise up to 69.3°F, with minimum temperature starting at 68.9°F, while the maximum might reach 69.6°F.

Daily water temperature in Dunkerque

Date Current Year

actual* / forecast**

last year 10 years average
Jul 8 68.7°F 67.1°F 64.8°F
Jul 9 69.2°F 66.1°F 64.9°F
Jul 10 68.6°F 66.4°F 64.9°F
Jul 11 69.0°F 67.2°F 65.1°F
Jul 12 69.9°F 67.4°F 65.0°F
Jul 13 70.6°F 67.9°F 65.4°F
Jul 14 69.7°F 68.6°F 65.4°F
Jul 15 70.2°F 67.5°F 65.3°F
Jul 16 70.9°F 67.3°F 65.4°F
Jul 17 69.9°F 67.9°F 65.4°F
Jul 18 70.3°F 67.5°F 65.8°F
Jul 19 69.2°F 67.3°F 65.9°F
Jul 20 70.0°F 67.0°F 66.3°F
Jul 21 69.2°F 67.5°F 66.3°F
Jul 22 68.8°F 67.7°F 66.1°F
Jul 23 68.9°F 67.8°F 66.2°F
Jul 24 69.0°F 67.7°F 66.3°F
Jul 25 69.2°F 67.5°F 66.5°F
Jul 26 69.4°F 68.6°F 66.7°F
Jul 27 69.6°F 68.5°F 66.9°F
Jul 28 69.5°F 67.8°F 66.8°F
Jul 29 69.4°F 67.8°F 66.7°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 Dunkerque by month

In an average year, Dunkerque offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Dunkerque was recorded on July 16, 2026, reaching a 70.9°F. While the coldest temperature occurred on March 2, 2018, dipping to 39.3°F. The average readings by season are 46.5°F in Winter, 50.2°F in Spring, 64.5°F in Summer, and 59.9°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Calais 69.4°F 23mi
Ostend 69.9°F 27mi
Brugge 69.9°F 39mi
Boulogne-sur-Mer 67.7°F 40mi

* current water temperature in this city

** straight line distance from Dunkerque