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Coldest sea in Norway in September

250 coastal locations in Norway ranked by typical September sea temperature, coldest first. Region-wide average in September: 13.9°C.

Coldest in September

Ny-Alesund

4.6°C September mean in Norway

Regional September average

13.9°C

across all 250 coastal locations in Norway

Vs annual mean

+4.3°C

above the year-round regional average

What the Norway sea feels like in September

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a real risk.

Norway monthly average 5.0°C to 15.0°C
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  • Warmest month August 15.0°C
  • Coldest month March 5.0°C
  • Annual mean 9.5°C
  • Months above 20°C 0 of 12

Where September fits in the year

September sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve Norway month rankings:

Norway sea temperature map (live)

The map shows today's latest reading at every Norway location. The list below is based on the typical September mean.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 coldest Norway locations in September

Sorted by typical September mean from a decade of daily readings, coldest first. Click any place for the full location page.

# Location September mean
1 Ny-Alesund 4.6°C
2 Jan Mayen 5.3°C
3 Dale 8.8°C
4 Varangerbotn 9.4°C
5 Kvalsund 9.5°C
6 Batsfjord 9.5°C
7 Varde 9.6°C
8 Honningsvag 9.6°C
9 Mehamn 9.6°C
10 Berlevag Troms og Finnmark 9.7°C
11 Burfjord 9.7°C
12 Skarsvag 9.7°C
13 Havøysund Troms og Finnmark 9.8°C
14 Kjøllefjord Troms og Finnmark 9.8°C
15 Hammerfest 9.8°C
16 Kirkenes 9.8°C
17 Rypefjord 9.8°C
18 Vadso Troms og Finnmark 10.0°C
19 Storslett 10.2°C
20 Hatteng 10.2°C
21 Lyngseidet 10.3°C
22 Olderdalen 10.3°C
23 Skjervoy 10.3°C
24 Hansnes 10.5°C
25 Storsteinnes 10.8°C
Show 25 more ▸
26 Tromso 10.8°C
27 Sorreisa 11.0°C
28 Andenes 11.1°C
29 Myre Nordland 11.2°C
30 Gryllefjord 11.3°C
31 Myre 11.3°C
32 Bogen 11.4°C
33 Narvik 11.4°C
34 Ballangen 11.4°C
35 Tennevoll 11.4°C
36 Evenskjer 11.4°C
37 Harstad 11.4°C
38 Melbu 11.4°C
39 Stokmarknes 11.4°C
40 Sortland 11.4°C
41 Unstad 11.5°C
42 Lofoten Islands 11.5°C
43 Straume Nordland 11.6°C
44 Bjarkøy Troms og Finnmark 11.7°C
45 Ramberg 11.7°C
46 Leknes 11.7°C
47 Henningsvaer 11.8°C
48 Kabelvag 11.8°C
49 Reine 11.8°C
50 Røst Nordland 12.1°C

Warmest 10 in Norway in September

Same data the other way. The warmest spots for the same month.

# Location September mean
1 Sjolyststranda 20.6°C
2 Asgardstrand 16.2°C
3 Horten 16.2°C
4 Tonsberg 16.2°C
5 Fredrikstad 16.2°C
6 Larkollen 16.2°C
7 Lervik 16.2°C
8 Moss 16.2°C
9 Oslofjord 16.2°C
10 Årøysund Vestfold og Telemark 16.1°C

More on this region