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Warmest sea in Sweden in September

118 coastal locations in Sweden ranked by their typical September sea temperature. Region-wide average in September: 15.3°C. The top of the list is where to find the warmest swimming this month.

Warmest in September

Sandhammaren

17.0°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, 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 Sweden locations in September

Sorted by the typical September 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 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
11 Landskrona 16.6°C
12 Ljunghusen 16.6°C
13 Träslövsläge Hallands län 16.6°C
14 Varberg 16.6°C
15 Halmstad 16.6°C
16 Helsingborg 16.6°C
17 Mariestad Lake Vanern 16.6°C
18 Tylosand 16.6°C
19 Bastad 16.6°C
20 Jonkoping Lake Vattern 16.6°C
21 Rydebäck Skåne län 16.6°C
22 Vejbystrand 16.6°C
23 Kristinehamn Lake Vanern 16.5°C
24 Lidkoping Lake Vanern 16.5°C
25 Andalen 16.5°C
Show 25 more ▸
26 Billdal 16.5°C
27 Donso 16.5°C
28 Frillesås Hallands län 16.5°C
29 Gothenburg 16.5°C
30 Saro 16.5°C
31 Karlstad Lake Vanern 16.5°C
32 Vanersborg Lake Vanern 16.5°C
33 Goteborg-Torsh. Västra Götaland 16.4°C
34 Styrsö Västra Götalands län 16.4°C
35 Ahus 16.4°C
36 Marstrand 16.4°C
37 Hönö Västra Götalands län 16.4°C
38 Öckerö Västra Götalands län 16.4°C
39 Hjuvik 16.4°C
40 Hoviksnas 16.4°C
41 Ljungskile 16.4°C
42 Myggenas 16.4°C
43 Stenungsund 16.4°C
44 Svanesund 16.4°C
45 Uddevalla 16.4°C
46 Henån Västra Götalands län 16.4°C
47 Rönnäng Västra Götalands län 16.4°C
48 Karlskrona 16.3°C
49 Karlshamn 16.3°C
50 Hunnebostrand 16.3°C

Coldest 10 in Sweden in September

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

# 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

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