What is the current water temperature in Boulogne-sur-Mer?

Q: What is the current water temperature in Boulogne-sur-Mer?

As of now, in Boulogne-sur-Mer, the water temperature is 14.15°C. 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.

France > Boulogne-sur-Mer

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.

57.5

°F

November 5, 18:54

Trend:

decreasing

Yesterday:

57.5°F

Tomorrow:

57.2°F

Sunrise:

07:51

Sunset:

17:22

Day Length:

9 h. 31 min.

Boulogne-sur-Mer in November

Minimum:

45.4°F

Average:

47.8°F

Maximum:

51.2°F

Sea water temperature in Boulogne-sur-Mer today

As of now, in Boulogne-sur-Mer, the water temperature is 57.5°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 0.6°F lower 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 considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 59.8°F on 2022, while the historical minimum was 56.6°F on 2025.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 56.7°F, the minimum temperature may reach 56.0°F, and the maximum might stay at 57.2°F.

Daily water temperature in Boulogne-sur-Mer

Date	Current Year actual* / forecast**	last year	10 years average
Oct 22	61.0°F	60.1°F	60.3°F
Oct 23	60.8°F	60.1°F	60.2°F
Oct 24	60.5°F	59.7°F	60.0°F
Oct 25	60.2°F	59.3°F	59.8°F
Oct 26	58.7°F	58.0°F	59.5°F
Oct 27	58.8°F	58.0°F	59.4°F
Oct 28	58.7°F	57.8°F	59.3°F
Oct 29	58.6°F	57.8°F	59.2°F
Oct 30	58.3°F	57.4°F	58.9°F
Oct 31	58.3°F	57.2°F	58.8°F
Nov 1	58.0°F	56.4°F	58.6°F
Nov 2	58.0°F	56.8°F	58.6°F
Nov 3	57.7°F	56.7°F	58.3°F
Nov 4	57.5°F	56.6°F	58.1°F
Nov 5	57.5°F	56.6°F	58.0°F
Nov 6	57.2°F	56.5°F	57.8°F
Nov 7	57.2°F	56.6°F	57.7°F
Nov 8	56.9°F	56.3°F	57.5°F
Nov 9	56.7°F	56.0°F	57.3°F
Nov 10	56.6°F	56.2°F	57.1°F
Nov 11	56.1°F	56.6°F	56.7°F
Nov 12	56.0°F	56.6°F	56.6°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 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 18, 2026, reaching a 71.5°F. While the coldest temperature occurred on February 19, 2021, dipping to 41.6°F. The average readings by season are 47.8°F in Winter, 50.1°F in Spring, 63.9°F in Summer, and 60.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Calais	56.4°F	19mi
Dunkerque	55.6°F	40mi
Canterbury	50.8°F	45mi

* current water temperature in this city

** straight line distance from Boulogne-sur-Mer