Swimming in Copenhagen in september 2025: Average sea temperature in september and tide times in september 2025

Average sea temperature in Copenhagen in september 2025.

In september, according to seasonal norms, the sea temperature in Copenhagen is:

Minimum: 56°F

Average: 62°F

Maximum: 67°F

Other useful seasonal weather averages in september:

  • Outside temperature: 58°F to 63°F
  • Most common weather: "Partly Cloudy"
  • The wind blows at 8.1mph
  • It rains a total of 2.6in, over 5 day(s).

Should we swim in Copenhagen in september?

No... The water temperature in Copenhagen in september is cold

Swimming in Copenhagen in september is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average sea temperature of 62°F (minimum: 56°F - maximum: 67°F).

Note also that in september, the climate is good with an average outside temperature of 60°F, 2.6in of precipitation (over 5 days) and 82.95 % humidity.

Water and normal seasonal temperatures in Copenhagen in september

September
Average sea temperature 62°F
Minimum sea temperature 56°F
Maximum sea temperature 67°F
Average outside temperature 61°F
Maximum outside temperature 65°F
Minimum outside temperature 58°F
Wind speed 13.7mph
Wind temperature 56°F
Precipitation 2.6in
Number of days of rain 5 jour(s)
(15%)
Humidity 83%
Visibility in kilometers 9.63km
Cloud cover 44%
Our opinion cold swimming

Chart of the tides in september 2025

Tide times in september 2025 in Copenhagen

Swim elsewhere in Denmark in september

City Average T° Max. T° Our opinion
Faroe Islands in september52°F54°Ffreezing swimming
Odense in september63°F68°Fcold swimming
Aarhus in september62°F67°Fcold swimming
Esbjerg in september63°F68°Fcool swimming
Hirtshals in september61°F65°Fcold swimming
Marstal in september63°F68°Fcold swimming
Ringkøbing in september62°F66°Fcold swimming
Stege in september62°F67°Fcold swimming
Thisted in september61°F65°Fcold swimming
Tórshavn in september51°F54°Ffreezing swimming

Swim in Denmark in september: sea temperature by city

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