All data are in degrees Fahrenheit

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Water temperature in Boulogne-sur-Mer

Detailed information about the current water temperature in Boulogne-sur-Mer. 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 Boulogne-sur-Mer now

55.4

°F

May 18, 19:38

Trend:

stable

Yesterday:

55.6°F

Tomorrow:

55.5°F

Sunrise:

06:01

Sunset:

21:39

Day Length:

15 h. 38 min.

Boulogne-sur-Mer in May

Minimum:

47.5°F

Average:

49.1°F

Maximum:

52.1°F

Sea water temperature in Boulogne-sur-Mer today

As of now, in Boulogne-sur-Mer, the water temperature is 55.4°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 1.3°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 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 56.6°F on 2022, while the historical minimum was 53.2°F on 2015.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 56.3°F, with minimum temperature starting at 55.5°F, while the maximum might reach 56.8°F.

Daily water temperature in Boulogne-sur-Mer

Date Current Year

actual* / forecast**

last year 10 years average
May 4 54.3°F 52.5°F 51.7°F
May 5 53.4°F 52.7°F 51.9°F
May 6 53.7°F 52.4°F 52.0°F
May 7 53.4°F 52.3°F 52.1°F
May 8 53.2°F 53.1°F 52.3°F
May 9 53.2°F 53.0°F 52.6°F
May 10 53.2°F 53.6°F 52.6°F
May 11 53.3°F 53.7°F 52.7°F
May 12 53.7°F 54.1°F 53.1°F
May 13 54.7°F 54.5°F 53.5°F
May 14 55.7°F 54.7°F 53.7°F
May 15 55.9°F 55.6°F 53.8°F
May 16 55.3°F 55.5°F 53.8°F
May 17 55.6°F 56.0°F 54.1°F
May 18 55.4°F 55.9°F 54.1°F
May 19 55.5°F 55.7°F 54.2°F
May 20 55.8°F 56.7°F 54.5°F
May 21 56.2°F 56.6°F 54.9°F
May 22 56.4°F 56.5°F 55.1°F
May 23 56.6°F 56.9°F 55.2°F
May 24 56.6°F 57.5°F 55.3°F
May 25 56.8°F 57.6°F 55.5°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 Boulogne-sur-Mer by month

In an average year, Boulogne-sur-Mer offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Boulogne-sur-Mer was recorded on August 22, 2022, reaching a 70.1°F. While the coldest temperature occurred on February 19, 2021, dipping to 41.6°F. The average readings by season are 48.0°F in Winter, 49.8°F in Spring, 63.2°F in Summer, and 60.7°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Calais 56.4°F 19mi
Dunkerque 56.1°F 40mi
Canterbury 57.8°F 45mi

* current water temperature in this city

** straight line distance from Boulogne-sur-Mer