Coldest sea in Norway

250 coastal locations in Norway ranked by year-round average sea temperature, coldest first. The regional average is 9.5°C. The top of the list is where the water stays cold all year. The contrast list at the bottom shows the warmest coasts for context.

Coldest location

Jan Mayen

Year-round average 2.2°C in Norway

Regional average

9.5°C

across all 250 Norway coastal locations

Coldest month

March

5.0°C region-wide average

Norway monthly average 5.0°C to 15.0°C

Warmest month August 15.0°C
Coldest month March 5.0°C
Annual mean 9.5°C
Months above 20°C 0 of 12

Month by month across Norway

Sea temperatures in Norway swing from 5.0°C in March to 15.0°C in August on average across every coast we track. That spread of 10°C hides much bigger swings at individual locations.

Want a specific month? Pick one for a dedicated ranking:

Norway sea temperature map

Today's pin colours show the latest daily reading at every Norway location we track. Cool blues cluster around the high-latitude coasts.

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 locations in Norway

Coastal locations across Norway sorted by year-round average, coldest first. Honest cold-water swimming country. Click any place for its 30-day chart, monthly profile, and 10-year history.

#	Location	Country	Annual mean	Latest
1	Jan Mayen	Norway	2.2°C	-0.3°C
2	Ny-Alesund	Norway	2.7°C	3.8°C
3	Dale	Norway	5.0°C	4.9°C
4	Varde	Norway	6.6°C	5.1°C
5	Kvalsund	Norway	6.6°C	5.9°C
6	Varangerbotn	Norway	6.7°C	5.4°C
7	Kirkenes	Norway	6.7°C	5.0°C
8	Vadso Troms og Finnmark	Norway	6.7°C	5.0°C
9	Batsfjord	Norway	6.7°C	5.3°C
10	Berlevag Troms og Finnmark	Norway	6.7°C	5.5°C
11	Havøysund Troms og Finnmark	Norway	6.8°C	6.2°C
12	Mehamn	Norway	6.8°C	6.1°C
13	Honningsvag	Norway	6.9°C	6.3°C
14	Kjøllefjord Troms og Finnmark	Norway	6.9°C	6.2°C
15	Hammerfest	Norway	7.0°C	6.4°C
16	Rypefjord	Norway	7.0°C	6.4°C
17	Skarsvag	Norway	7.0°C	6.7°C
18	Hatteng	Norway	7.0°C	6.9°C
19	Burfjord	Norway	7.1°C	6.8°C
20	Lyngseidet	Norway	7.1°C	6.8°C
21	Olderdalen	Norway	7.1°C	6.8°C
22	Storslett	Norway	7.2°C	6.7°C
23	Hansnes	Norway	7.3°C	6.9°C
24	Storsteinnes	Norway	7.3°C	6.8°C
25	Tromso	Norway	7.3°C	6.8°C

Show 25 more ▸

26	Skjervoy	Norway	7.5°C	7.0°C
27	Sorreisa	Norway	7.5°C	7.1°C
28	Tennevoll	Norway	7.7°C	7.2°C
29	Bogen	Norway	7.8°C	7.5°C
30	Narvik	Norway	7.8°C	7.5°C
31	Ballangen	Norway	7.8°C	7.4°C
32	Evenskjer	Norway	7.8°C	7.3°C
33	Harstad	Norway	7.9°C	7.1°C
34	Bjarkøy Troms og Finnmark	Norway	7.9°C	7.3°C
35	Gryllefjord	Norway	8.0°C	7.1°C
36	Straumen	Norway	8.0°C	7.3°C
37	Lodingen	Norway	8.0°C	7.3°C
38	Kjopsvik	Norway	8.1°C	7.3°C
39	Leinesfjorden	Norway	8.1°C	7.4°C
40	Sortland	Norway	8.1°C	7.3°C
41	Melbu	Norway	8.2°C	7.4°C
42	Stokmarknes	Norway	8.2°C	7.4°C
43	Kabelvag	Norway	8.2°C	7.5°C
44	Henningsvaer	Norway	8.2°C	7.5°C
45	Straume Nordland	Norway	8.2°C	—
46	Fauske	Norway	8.3°C	7.5°C
47	Andenes	Norway	8.3°C	7.7°C
48	Myre	Norway	8.3°C	7.5°C
49	Leknes	Norway	8.3°C	7.5°C
50	Svolvaer	Norway	8.3°C	7.5°C

Warmest 10 in Norway for contrast

Same data flipped. Useful if you want to know which Norway coasts stay warmest year-round before you commit to a cold-water swim trip.

#	Location	Country	Annual mean
1	Sjolyststranda	Norway	17.5°C
2	Ytre Skålevik Agder	Norway	10.8°C
3	Søgne Agder	Norway	10.8°C
4	Helgeroa Vestfold og Telemark	Norway	10.8°C
5	Nevlunghavn Vestfold og Telemark	Norway	10.8°C
6	Tregde Agder	Norway	10.8°C
7	Lillesand	Norway	10.7°C
8	Stavern	Norway	10.7°C
9	Arendal	Norway	10.7°C
10	Justvik	Norway	10.7°C