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Warmest sea in Norway in August

250 coastal locations in Norway ranked by their typical August sea temperature. Region-wide average in August: 15.0°C. The top of the list is where to find the warmest swimming this month.

Warmest in August

Sjolyststranda

20.9°C August mean in Norway

Regional August average

15.0°C

across all 250 coastal locations in Norway

Vs annual mean

+5.5°C

above the year-round regional average

What the Norway sea feels like in August

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

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 August fits in the year

August 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 August mean, useful for trip planning weeks or months ahead.

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 warmest Norway locations in August

Sorted by the typical August mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

# Location August mean
1 Sjolyststranda 20.9°C
2 Åros Viken 18.5°C
3 Oscarsborg Frogn 18.5°C
4 Sætre Viken 18.5°C
5 Sjølyststranda Oslo 18.5°C
6 Drobak 18.4°C
7 Fagerstrand 18.4°C
8 Lysaker 18.4°C
9 Nesoddtangen 18.4°C
10 Oslo 18.4°C
11 Sandvika 18.4°C
12 Selvik 18.4°C
13 Slemmestad 18.4°C
14 Svelvik 18.4°C
15 Tofte 18.4°C
16 Tomra 18.4°C
17 Viker Hvaler 18.3°C
18 Årøysund Vestfold og Telemark 18.2°C
19 Larkollen 18.2°C
20 Lervik 18.2°C
21 Moss 18.2°C
22 Oslofjord 18.2°C
23 Asgardstrand 18.1°C
24 Horten 18.1°C
25 Tonsberg 18.1°C
Show 25 more ▸
26 Skjærhalden Viken 18.1°C
27 Fredrikstad 18.0°C
28 Melsomvik 17.8°C
29 Helgeroa Vestfold og Telemark 17.8°C
30 Nevlunghavn Vestfold og Telemark 17.8°C
31 Langesund 17.7°C
32 Porsgrunn 17.7°C
33 Rafnes 17.7°C
34 Larvik 17.7°C
35 Sandefjord 17.7°C
36 Kragero 17.6°C
37 Tvedestrand 17.5°C
38 Ytre Skålevik Agder 17.5°C
39 Fevik 17.4°C
40 Grimstad 17.4°C
41 Risor 17.4°C
42 Arendal 17.4°C
43 Stavern 17.4°C
44 Søgne Agder 17.2°C
45 Tregde Agder 17.2°C
46 Justvik 17.2°C
47 Kristiansand 17.2°C
48 Lillesand 17.2°C
49 Mandal 17.1°C
50 Flekkefjord 17.0°C

Coldest 10 in Norway in August

Same data the other way. Helpful if you want to know which Norway coasts to avoid for swimming in August.

# Location August mean
1 Jan Mayen 6.1°C
2 Ny-Alesund 6.7°C
3 Kvalsund 10.4°C
4 Havøysund Troms og Finnmark 10.4°C
5 Dale 10.5°C
6 Batsfjord 10.5°C
7 Honningsvag 10.5°C
8 Varde 10.6°C
9 Berlevag Troms og Finnmark 10.6°C
10 Mehamn 10.7°C

More on this region