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

55.6

°F

May 6, 02:39

Trend:

increasing

Yesterday:

55.5°F

Tomorrow:

55.9°F

Sunrise:

06:16

Sunset:

21:20

Day Length:

15 h. 4 min.

Dunkerque in May

Minimum:

43.0°F

Average:

47.4°F

Maximum:

50.5°F

Sea water temperature in Dunkerque today

As of now, in Dunkerque, the water temperature is 55.6°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 3.2°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 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 54.8°F on 2025, while the historical minimum was 50.2°F on 2021.

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 56.4°F, with minimum temperature starting at 55.9°F, while the maximum might reach 57.2°F.

Daily water temperature in Dunkerque

Date Current Year

actual* / forecast**

last year 10 years average
Apr 22 52.5°F 51.2°F 50.9°F
Apr 23 52.8°F 51.6°F 51.0°F
Apr 24 53.2°F 51.6°F 51.0°F
Apr 25 53.6°F 51.6°F 51.2°F
Apr 26 54.2°F 51.8°F 51.3°F
Apr 27 54.0°F 52.4°F 51.3°F
Apr 28 54.1°F 52.8°F 51.4°F
Apr 29 54.7°F 53.2°F 51.5°F
Apr 30 55.2°F 53.4°F 51.7°F
May 1 55.3°F 54.2°F 51.8°F
May 2 55.4°F 53.9°F 52.1°F
May 3 55.8°F 54.1°F 52.2°F
May 4 55.7°F 54.1°F 52.2°F
May 5 55.5°F 54.7°F 52.3°F
May 6 55.6°F 54.8°F 52.5°F
May 7 55.9°F 55.0°F 52.7°F
May 8 56.0°F 54.7°F 52.8°F
May 9 56.3°F 55.0°F 53.1°F
May 10 56.3°F 55.1°F 53.2°F
May 11 56.5°F 55.2°F 53.3°F
May 12 56.7°F 55.5°F 53.6°F
May 13 57.2°F 56.0°F 54.1°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 August 13, 2022, reaching a 70.7°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, 64.4°F in Summer, and 59.9°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Calais 55.3°F 23mi
Ostend 55.9°F 27mi
Brugge 54.9°F 39mi
Boulogne-sur-Mer 54.2°F 40mi

* current water temperature in this city

** straight line distance from Dunkerque