Swimming in Cherbourg-Octeville (Cotentin) in september 2025: Average sea temperature in september and tide times in september 2025

Average sea temperature in Cherbourg-Octeville (Cotentin) in september 2025.

In september, according to seasonal norms, the sea temperature in Cherbourg-Octeville (Cotentin) is:

Minimum: 63°F

Average: 64°F

Maximum: 66°F

Other useful seasonal weather averages in september:

  • Outside temperature: 59°F to 64°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 8.7mph
  • It rains a total of 2.9in, over 4 day(s).

Should we swim in Cherbourg-Octeville (Cotentin) in september?

Yes... and no. The water temperature in Cherbourg-Octeville (Cotentin) in september is cool

Swimming in september on the beaches of Cherbourg-Octeville (Cotentin) is possible but the sea water is cool. So even though the sea temperature sometimes climbs to 66°F, it can also be as low as 63°F! Note that the average is 64°F.

Note also that in september, the climate is good with an average outside temperature of 61°F, 2.9in of precipitation (over 4 days) and 85.67 % humidity.

Water and normal seasonal temperatures in Cherbourg-Octeville (Cotentin) in september

September
Average sea temperature 64°F
Minimum sea temperature 63°F
Maximum sea temperature 66°F
Average outside temperature 63°F
Maximum outside temperature 65°F
Minimum outside temperature 59°F
Wind speed 15.5mph
Wind temperature 58°F
Precipitation 2.9in
Number of days of rain 4 jour(s)
(14%)
Humidity 86%
Visibility in kilometers 9.45km
Cloud cover 41%
Our opinion cool swimming

Chart of the tides in september 2025

Tide times in september 2025 in Cherbourg-Octeville (Cotentin)

Swim elsewhere in Normandy in september

City Average T° Max. T° Our opinion
Deauville in september65°F67°Fcool swimming
Dieppe in september65°F67°Fcool swimming
Mont Saint-Michel in september65°F67°Fcool swimming
Cabourg in september65°F66°Fcool swimming
Granville in september65°F67°Fcool swimming
Honfleur in september65°F67°Fcool swimming
Le Havre in september65°F67°Fcool swimming
Ouistreham in september65°F67°Fcool swimming
Barfleur in september65°F66°Fcool swimming
Barneville-Carteret in september65°F67°Fcool swimming
Étretat in september65°F67°Fcool swimming
La Hague in september64°F66°Fcool swimming
Pirou Plage in september65°F67°Fcool swimming
Saint-Germain-sur-Ay in september65°F67°Fcool swimming
Saint-Laurent-sur-Mer in september65°F67°Fcool swimming
Surtainville in september65°F67°Fcool swimming
Vierville-sur-Mer in september65°F66°Fcool swimming
Villerville in september65°F67°Fcool swimming

Swim in Normandy in september: sea temperature by city

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