Swimming in Sweden in september 2025 Sea temperature by city in september
Do you want to go to the beach in Sweden in september 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in september in Sweden by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Sweden in september 2025
Here, find the average sea temperature in Sweden in september in several coastal cities.
Svealand (Center) in september
59°F
min: 52°F / max: 67°F
59°F
min: 52°F / max: 67°F
Tyresta nationalpark
59°F
min: 52°F / max: 67°F
Bjorko
59°F
min: 52°F / max: 66°F
Dalaro
59°F
min: 52°F / max: 67°F
Nynashamn
59°F
min: 51°F / max: 67°F
Götaland (South) in september
61°F
min: 57°F / max: 66°F
61°F
min: 53°F / max: 68°F
62°F
min: 56°F / max: 68°F
Fiskebäckskil
61°F
min: 57°F / max: 65°F
Fjällbacka
61°F
min: 57°F / max: 65°F
Fårö island
61°F
min: 53°F / max: 69°F
Norrland (North) in september
58°F
min: 51°F / max: 64°F
56°F
min: 47°F / max: 64°F
Skuleskogens nationalpark
56°F
min: 49°F / max: 64°F
Haparanda
55°F
min: 50°F / max: 62°F
Härnösand
56°F
min: 48°F / max: 64°F
Holmsund
56°F
min: 50°F / max: 63°F
Where should you go swimming in Sweden in the month of september?
Swimming in Sweden in september is cold (in the best case scenario)
In september in Sweden swimming conditions vary by city. Details below:
Swimming in september in Gothenburg, Gotland, Malmo, Fiskebäckskil, Fjällbacka, Fårö island, Hållö island, Kullaberg, Öland, Smögen, Ängelholm, Bergkvara, Borgholm, Falkenberg, Halmstad, Helsingborg, Hoganas, Hono, Kalmar, Karlshamn, Karlskrona, Kungsbacka, Landskrona, Lysekil, Moensteras, Oskarshamn, Oxelosund, Simrishamn, Skanor med Falsterbo, Sodra Sandby, Sölvesborg, Strömstad, Styrso (Lilla Ravholmen), Trelleborg, Varberg, Västervik, Visby and Ystad is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average temperature of 61°F (min: 57°F/max: 66°F).
Forget about swimming in Stockholm, Gävle, Sundsvall, Sandhamn, Skuleskogens nationalpark, Tyresta nationalpark, Bjorko, Dalaro, Haparanda, Härnösand, Holmsund, Hudiksvall, Kalix, Kramfors, Nynashamn, OEsthammar, Ornskoldsvik, Söderhamn, Stavsnas, Trosa and Vaxholm in september! The water temperature is freezing, reaching as low as 52°F (and only 67°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!
Where to go swimming in Sweden in september: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in september
Stockholm
| September | |||
| Average sea temperature | 59°F | ||
| Minimum sea temperature | 52°F | ||
| Maximum sea temperature | 67°F | ||
| Average outside temperature | 58°F | ||
| Maximum outside temperature | 63°F | ||
| Minimum outside temperature | 54°F | ||
| Precipitation | 2.2in | ||
| Number of days of precipitation | 4 jour(s) (13%) | ||
| Cloud cover | 42% | ||
| Our opinion | freezing swimming |
More information on swimming in Stockholm in september
Gothenburg
| September | |||
| Average sea temperature | 61°F | ||
| Minimum sea temperature | 57°F | ||
| Maximum sea temperature | 66°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 63°F | ||
| Minimum outside temperature | 56°F | ||
| Precipitation | 4.6in | ||
| Number of days of precipitation | 8 jour(s) (26%) | ||
| Cloud cover | 47% | ||
| Our opinion | cold swimming |
More information on swimming in Gothenburg in september
Gävle
| September | |||
| Average sea temperature | 58°F | ||
| Minimum sea temperature | 51°F | ||
| Maximum sea temperature | 64°F | ||
| Average outside temperature | 58°F | ||
| Maximum outside temperature | 63°F | ||
| Minimum outside temperature | 52°F | ||
| Precipitation | 2.5in | ||
| Number of days of precipitation | 4 jour(s) (13%) | ||
| Cloud cover | 48% | ||
| Our opinion | freezing swimming |
More information on swimming in Gävle in september
Gotland
| September | |||
| Average sea temperature | 61°F | ||
| Minimum sea temperature | 53°F | ||
| Maximum sea temperature | 68°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 61°F | ||
| Minimum outside temperature | 58°F | ||
| Precipitation | 2.6in | ||
| Number of days of precipitation | 4 jour(s) (14%) | ||
| Cloud cover | 40% | ||
| Our opinion | cold swimming |
More information on swimming in Gotland in september
Malmo
| September | |||
| Average sea temperature | 62°F | ||
| Minimum sea temperature | 56°F | ||
| Maximum sea temperature | 68°F | ||
| Average outside temperature | 61°F | ||
| Maximum outside temperature | 65°F | ||
| Minimum outside temperature | 58°F | ||
| Precipitation | 2.4in | ||
| Number of days of precipitation | 4 jour(s) (12%) | ||
| Cloud cover | 44% | ||
| Our opinion | cold swimming |
More information on swimming in Malmo in september
List of coastal cities in Sweden
| Stockholm in september | freezing swimming |
| Gothenburg in september | cold swimming |
| Gävle in september | freezing swimming |
| Gotland in september | cold swimming |
| Malmo in september | cold swimming |
| Sundsvall in september | freezing swimming |
| Fiskebäckskil in september | cold swimming |
| Fjällbacka in september | cold swimming |
| Fårö island in september | cold swimming |
| Hållö island in september | cold swimming |
| Kullaberg in september | cold swimming |
| Öland in september | cold swimming |
| Sandhamn in september | freezing swimming |
| Skuleskogens nationalpark in september | freezing swimming |
| Smögen in september | cold swimming |
| Tyresta nationalpark in september | freezing swimming |
| Ängelholm in september | cold swimming |
| Bergkvara in september | cold swimming |
| Bjorko in september | freezing swimming |
| Borgholm in september | cold swimming |
| Dalaro in september | freezing swimming |
| Falkenberg in september | cold swimming |
| Halmstad in september | cold swimming |
| Haparanda in september | freezing swimming |
| Härnösand in september | freezing swimming |
| Helsingborg in september | cold swimming |
| Hoganas in september | cold swimming |
| Holmsund in september | freezing swimming |
| Hono in september | cold swimming |
| Hudiksvall in september | freezing swimming |
| Kalix in september | freezing swimming |
| Kalmar in september | cold swimming |
| Karlshamn in september | cold swimming |
| Karlskrona in september | cold swimming |
| Kramfors in september | freezing swimming |
| Kungsbacka in september | cold swimming |
| Landskrona in september | cold swimming |
| Lysekil in september | cold swimming |
| Moensteras in september | cold swimming |
| Nynashamn in september | freezing swimming |
| OEsthammar in september | freezing swimming |
| Ornskoldsvik in september | freezing swimming |
| Oskarshamn in september | cold swimming |
| Oxelosund in september | cold swimming |
| Simrishamn in september | cold swimming |
| Skanor med Falsterbo in september | cold swimming |
| Söderhamn in september | freezing swimming |
| Sodra Sandby in september | cold swimming |
| Sölvesborg in september | cold swimming |
| Stavsnas in september | freezing swimming |
| Strömstad in september | cold swimming |
| Styrso (Lilla Ravholmen) in september | cold swimming |
| Trelleborg in september | cold swimming |
| Trosa in september | freezing swimming |
| Varberg in september | cold swimming |
| Västervik in september | cold swimming |
| Vaxholm in september | freezing swimming |
| Visby in september | cold swimming |
| Ystad in september | cold swimming |