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

Average sea temperature in Jokulsarlon in september 2025.

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

Minimum: 47°F

Average: 49°F

Maximum: 52°F

Other useful seasonal weather averages in september:

  • Outside temperature: 44°F to 50°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 2.5mph
  • It rains a total of 12.5in, over 12 day(s).

Should we swim in Jokulsarlon in september?

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

You won't be able to swim in Jokulsarlon in september! The water temperature is freezing, reaching as low as 47°F (and only 52°F at best)! Our advice: if you are going to Jokulsarlon this month, plan to sightsee and forget the beach!

Note also that in september, the climate is bad with an average outside temperature of 47°F, 12.5in of precipitation (over 12 days) and 84.66 % humidity.

Water and normal seasonal temperatures in Jokulsarlon in september

September
Average sea temperature 49°F
Minimum sea temperature 47°F
Maximum sea temperature 52°F
Average outside temperature 47°F
Maximum outside temperature 50°F
Minimum outside temperature 45°F
Wind speed 16.2mph
Wind temperature 40°F
Precipitation 12.5in
Number of days of rain 12 jour(s)
(40%)
Humidity 85%
Visibility in kilometers 8.67km
Cloud cover 57%
Our opinion freezing swimming

Chart of the tides in september 2025

Tide times in september 2025 in Jokulsarlon

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
Siglufjördur in september45°F48°Ffreezing swimming
Snaefellsnes in september49°F51°Ffreezing swimming
Vík í Mýrdal in september51°F54°Ffreezing swimming

Swim in Iceland in september: sea temperature by city

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