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

Average sea temperature in Siglufjördur in september 2025.

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

Minimum: 42°F

Average: 45°F

Maximum: 48°F

Other useful seasonal weather averages in september:

  • Outside temperature: 41°F to 48°F
  • Most common weather: "Partly Cloudy"
  • The wind blows at 1.2mph
  • It rains a total of 5.9in, over 9 day(s).

Should we swim in Siglufjördur in september?

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

You won't be able to swim in Siglufjördur in september! The water temperature is freezing, reaching as low as 42°F (and only 48°F at best)! Our advice: if you are going to Siglufjördur this month, plan to sightsee and forget the beach!

Note also that in september, the climate is very bad with an average outside temperature of 44°F, 5.8in of precipitation (over 9 days) and 87.56 % humidity.

Water and normal seasonal temperatures in Siglufjördur in september

September
Average sea temperature 45°F
Minimum sea temperature 42°F
Maximum sea temperature 48°F
Average outside temperature 45°F
Maximum outside temperature 49°F
Minimum outside temperature 41°F
Wind speed 13.1mph
Wind temperature 36°F
Precipitation 5.9in
Number of days of rain 9 jour(s)
(30%)
Humidity 88%
Visibility in kilometers 8.34km
Cloud cover 62%
Our opinion freezing swimming

Chart of the tides in september 2025

Tide times in september 2025 in Siglufjördur

Swim elsewhere in Iceland in september

City Average T° Max. T° Our opinion
Reykjavík in september50°F52°Ffreezing swimming
Akureyri in september46°F49°Ffreezing swimming
Borgarnes in september49°F51°Ffreezing swimming
Djúpavík in september46°F49°Ffreezing swimming
Grindavík in september51°F53°Ffreezing swimming
Hofn in september49°F52°Ffreezing swimming
Ísafjörður in september46°F49°Ffreezing swimming
Ólafsvík in september49°F51°Ffreezing swimming
Patreksfjörður in september46°F49°Ffreezing swimming
Raufarhöfn in september46°F49°Ffreezing swimming
Snaefellsnes in september49°F51°Ffreezing swimming
Vík í Mýrdal in september51°F54°Ffreezing swimming
Jokulsarlon in september49°F52°Ffreezing swimming

Swim in Iceland in september: sea temperature by city

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