All data are in degrees Fahrenheit

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Water temperature in Cherbourg-Octeville

Detailed information about the current water temperature in Cherbourg-Octeville. 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 Cherbourg-Octeville now

64.5

°F

September 16, 00:43

Trend:

decreasing

Yesterday:

64.6°F

Tomorrow:

64.5°F

Sunrise:

07:43

Sunset:

20:19

Day Length:

12 h. 36 min.

Cherbourg-Octeville in September

Minimum:

50.1°F

Average:

51.1°F

Maximum:

52.9°F

Sea water temperature in Cherbourg-Octeville today

As of now, in Cherbourg-Octeville, the water temperature is 64.5°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 0.5°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 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 65.7°F on 2022, while the historical minimum was 62.4°F on 2015.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 64.4°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Cherbourg-Octeville

Date Current Year

actual* / forecast**

last year 10 years average
Sep 2 65.7°F 65.0°F 64.4°F
Sep 3 65.6°F 65.0°F 64.3°F
Sep 4 65.4°F 64.7°F 64.4°F
Sep 5 65.2°F 64.9°F 64.4°F
Sep 6 65.1°F 64.8°F 64.4°F
Sep 7 65.4°F 64.9°F 64.4°F
Sep 8 65.1°F 65.0°F 64.5°F
Sep 9 65.1°F 64.8°F 64.4°F
Sep 10 65.1°F 64.7°F 64.5°F
Sep 11 65.1°F 64.4°F 64.4°F
Sep 12 64.9°F 64.1°F 64.3°F
Sep 13 64.8°F 63.9°F 64.2°F
Sep 14 64.6°F 63.8°F 64.2°F
Sep 15 64.6°F 63.4°F 64.1°F
Sep 16 64.5°F 63.6°F 64.0°F
Sep 17 64.5°F 63.8°F 64.0°F
Sep 18 64.5°F 64.0°F 64.0°F
Sep 19 64.4°F 63.9°F 63.9°F
Sep 20 64.4°F 64.3°F 63.9°F
Sep 21 64.4°F 64.0°F 63.9°F
Sep 22 64.4°F 64.2°F 63.9°F
Sep 23 64.3°F 64.2°F 63.8°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 Cherbourg-Octeville by month

In an average year, Cherbourg-Octeville offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Cherbourg-Octeville was recorded on August 27, 2025, reaching a 66.7°F. While the coldest temperature occurred on March 5, 2018, dipping to 45.3°F. The average readings by season are 50.7°F in Winter, 50.5°F in Spring, 61.1°F in Summer, and 61.1°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Saint Peter Port 63.2°F 43mi
Saint-Malo 64.9°F 71mi
Portland 63.5°F 74mi

* current water temperature in this city

** straight line distance from Cherbourg-Octeville