Swimming in Fort-Mahon-Plage in august 2025: Average sea temperature in august and tide times in august 2025

Average sea temperature in Fort-Mahon-Plage in august 2025.

In august, according to seasonal norms, the sea temperature in Fort-Mahon-Plage is:

Minimum: 62°F

Average: 65°F

Maximum: 67°F

Other useful seasonal weather averages in august:

  • Outside temperature: 61°F to 68°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 9.9mph
  • It rains a total of 4.5in, over 7 day(s).

Should we swim in Fort-Mahon-Plage in august?

Yes... and no. The water temperature in Fort-Mahon-Plage in august is cool

Swimming in august on the beaches of Fort-Mahon-Plage is possible but the sea water is cool. So even though the sea temperature sometimes climbs to 67°F, it can also be as low as 62°F! Note that the average is 65°F.

Note also that in august, the climate is good with an average outside temperature of 65°F, 4.5in of precipitation (over 7 days) and 86 % humidity.

Water and normal seasonal temperatures in Fort-Mahon-Plage in august

August
Average sea temperature 65°F
Minimum sea temperature 62°F
Maximum sea temperature 67°F
Average outside temperature 67°F
Maximum outside temperature 68°F
Minimum outside temperature 63°F
Wind speed 14.3mph
Wind temperature 61°F
Precipitation 4.5in
Number of days of rain 7 jour(s)
(23%)
Humidity 86%
Visibility in kilometers 9.42km
Cloud cover 40%
Our opinion cool swimming

Chart of the tides in august 2025

Tide times in august 2025 in Fort-Mahon-Plage

Swim elsewhere in Picardy in august

City Average T° Max. T° Our opinion
Somme Bay in august65°F67°Fcool swimming
Quend Plage in august65°F67°Fcool swimming
Saint-Valery-sur-Somme in august65°F67°Fcool swimming

Swim in Picardy in august: sea temperature by city

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