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

Average sea temperature in Alta in september 2025.

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

Minimum: 47°F

Average: 50°F

Maximum: 53°F

Other useful seasonal weather averages in september:

  • Outside temperature: 45°F to 51°F
  • Most common weather: "Cloudy"
  • The wind blows at 3.1mph
  • It rains a total of 2.1in, over 3 day(s).

Should we swim in Alta in september?

No... The water temperature in Alta in september is freezing

You won't be able to swim in Alta in september! The water temperature is freezing, reaching as low as 47°F (and only 53°F at best)! Our advice: if you are going to Alta this month, plan to sightsee and forget the beach!

Note also that in september, the climate is bad with an average outside temperature of 48°F, 2.1in of precipitation (over 3 days) and 85.17 % humidity.

Water and normal seasonal temperatures in Alta in september

September
Average sea temperature 50°F
Minimum sea temperature 47°F
Maximum sea temperature 53°F
Average outside temperature 49°F
Maximum outside temperature 52°F
Minimum outside temperature 45°F
Wind speed 11.8mph
Wind temperature 41°F
Precipitation 2.1in
Number of days of rain 3 jour(s)
(10%)
Humidity 86%
Visibility in kilometers 8.88km
Cloud cover 59%
Our opinion freezing swimming

Chart of the tides in september 2025

Tide times in september 2025 in Alta

Swim elsewhere in Lapland in september

City Average T° Max. T° Our opinion
Kemi in september56°F61°Ffreezing swimming
Lulea in september54°F59°Ffreezing swimming
Tromso in september51°F54°Ffreezing swimming
Kirkenes in september49°F52°Ffreezing swimming

Swim in Lapland in september: sea temperature by city

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