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Coldest sea in Sweden in September

118 coastal locations in Sweden ranked by typical September sea temperature, coldest first. Region-wide average in September: 15.3°C.

Coldest in September

Skelleftehamn

11.6°C September mean in Sweden

Regional September average

15.3°C

across all 118 coastal locations in Sweden

Vs annual mean

+6.0°C

above the year-round regional average

What the Sweden sea feels like in September

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.

Sweden monthly average 2.4°C to 17.4°C
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  • Warmest month August 17.4°C
  • Coldest month February 2.4°C
  • Annual mean 9.2°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 Sweden month rankings:

Sweden sea temperature map (live)

The map shows today's latest reading at every Sweden 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 Sweden 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 Skelleftehamn 11.6°C
2 Ursviken 11.6°C
3 Gammelstad 12.3°C
4 Lulea 12.3°C
5 Piteå Norrbottens län 12.3°C
6 Södra Sunderbyn Norrbottens län 12.3°C
7 Kalix 12.5°C
8 Rolfs 12.5°C
9 Töre Norrbottens län 12.7°C
10 Haparanda 12.8°C
11 Taftea 12.9°C
12 Hudiksvall 12.9°C
13 Iggesund 12.9°C
14 Sandarne 13.0°C
15 Harnosand 13.1°C
16 Stockvik 13.1°C
17 Sundsbruk 13.1°C
18 Sundsvall 13.1°C
19 Ljusne 13.1°C
20 Kramfors 13.2°C
21 Holmsund 13.2°C
22 Obbola 13.2°C
23 Norrsundet 13.2°C
24 Nordmaling 13.4°C
25 Husum 13.5°C
Show 25 more ▸
26 Ornskoldsvik 13.5°C
27 Alunda 13.9°C
28 Marielund 14.0°C
29 Sandhamn 14.3°C
30 Nykoping 14.7°C
31 Brevik 14.8°C
32 Oestermalm 14.8°C
33 Saltsjobaden 14.8°C
34 Stockholm 14.8°C
35 Vaxholm 14.8°C
36 Pershagen 14.8°C
37 Bara Södermanlands län 14.8°C
38 Mörtnäs Stockholms län 14.8°C
39 Östermalm Stockholms län 14.8°C
40 Marieberg 14.9°C
41 Oxelosund 14.9°C
42 Trosa 15.0°C
43 Nynashamn 15.1°C
44 Timmernabben 15.2°C
45 Borgholm 15.3°C
46 Oland 15.3°C
47 Karlsborg Lake Vattern 15.3°C
48 Motala Lake Vattern 15.3°C
49 Oskarshamn 15.3°C
50 Vadstena Lake Vattern 15.3°C

Warmest 10 in Sweden in September

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

# Location September mean
1 Sandhammaren 17.0°C
2 Ystad 16.9°C
3 Trelleborg 16.9°C
4 Höllviken Skåne län 16.9°C
5 Lomma 16.9°C
6 Malmo 16.9°C
7 Ystadt Skåne län 16.8°C
8 Höganäs Skåne län 16.7°C
9 Falkenberg 16.6°C
10 Falsterbo 16.6°C

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