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

56.5

°F

May 13, 05:59

Trend:

increasing

Yesterday:

56.0°F

Tomorrow:

56.9°F

Sunrise:

06:04

Sunset:

21:30

Day Length:

15 h. 26 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 56.5°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 2.4°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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 56.0°F on 2025, while the historical minimum was 52.4°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 57.4°F, with minimum temperature starting at 56.9°F, while the maximum might reach 58.0°F.

Daily water temperature in Dunkerque

Date Current Year

actual* / forecast**

last year 10 years average
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 52.6°F
May 6 55.6°F 54.8°F 52.8°F
May 7 55.4°F 55.0°F 53.0°F
May 8 55.4°F 54.7°F 53.0°F
May 9 56.0°F 55.0°F 53.4°F
May 10 56.1°F 55.1°F 53.5°F
May 11 55.8°F 55.2°F 53.6°F
May 12 56.0°F 55.2°F 53.6°F
May 13 56.5°F 56.0°F 54.1°F
May 14 56.9°F 56.9°F 54.4°F
May 15 57.1°F 56.8°F 54.7°F
May 16 57.1°F 56.9°F 54.7°F
May 17 57.4°F 56.3°F 55.0°F
May 18 57.6°F 56.1°F 55.1°F
May 19 57.7°F 55.9°F 55.3°F
May 20 58.0°F 56.7°F 55.6°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 56.3°F 23mi
Ostend 56.2°F 27mi
Brugge 56.2°F 39mi
Boulogne-sur-Mer 54.7°F 40mi

* current water temperature in this city

** straight line distance from Dunkerque