All data are in degrees Fahrenheit

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Water temperature in Calais

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

46.5

°F

February 24, 01:57

Trend:

increasing

Yesterday:

46.3°F

Tomorrow:

46.6°F

Sunrise:

07:48

Sunset:

18:24

Day Length:

10 h. 36 min.

Calais in February

Minimum:

44.9°F

Average:

48.7°F

Maximum:

52.4°F

Sea water temperature in Calais today

As of now, in Calais, the water temperature is 46.5°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 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 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 also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 48.1°F on 2024, while the historical minimum was 43.8°F on 2025.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 45.8°F, the minimum temperature may reach 45.0°F, and the maximum might stay at 46.6°F.

Daily water temperature in Calais

Date Current Year

actual* / forecast**

last year 10 years average
Feb 10 46.3°F 45.2°F 45.8°F
Feb 11 46.0°F 45.2°F 45.7°F
Feb 12 46.7°F 45.4°F 45.7°F
Feb 13 47.2°F 45.4°F 45.6°F
Feb 14 47.3°F 44.8°F 45.3°F
Feb 15 47.0°F 44.5°F 45.3°F
Feb 16 46.0°F 44.5°F 45.3°F
Feb 17 46.8°F 44.2°F 45.5°F
Feb 18 46.8°F 44.4°F 45.5°F
Feb 19 46.6°F 43.8°F 45.6°F
Feb 20 46.7°F 43.9°F 45.6°F
Feb 21 46.9°F 44.2°F 45.7°F
Feb 22 47.1°F 44.2°F 45.8°F
Feb 23 46.3°F 44.5°F 45.8°F
Feb 24 46.5°F 43.8°F 45.9°F
Feb 25 46.6°F 45.5°F 46.0°F
Feb 26 46.5°F 44.8°F 46.0°F
Feb 27 46.3°F 45.2°F 45.8°F
Feb 28 46.2°F 45.0°F 45.7°F
Mar 1 45.2°F 45.8°F 45.7°F
Mar 2 45.0°F 45.2°F 45.6°F
Mar 3 45.0°F 45.8°F 45.6°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 Calais by month

In an average year, Calais offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Calais was recorded on August 14, 2022, reaching a 70.3°F. While the coldest temperature occurred on March 2, 2018, dipping to 40.8°F. The average readings by season are 47.5°F in Winter, 49.9°F in Spring, 63.5°F in Summer, and 60.5°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Boulogne-sur-Mer 46.9°F 19mi
Dunkerque 46.5°F 23mi
Canterbury 43.8°F 41mi

* current water temperature in this city

** straight line distance from Calais