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Sea temperature in Sweden

Live water temperatures and swimming conditions across 65 beaches on the Sweden coast.

Best time to swim in Sweden

The sea in Sweden peaks in August, when the water averages around 18°C.

On average, 0 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.

Outside peak season the water drops toward 6°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.

The coldest month is typically February at around 2°C, when cold-water swimmers dominate the coast.

Sweden sea temperature history

Long-term climatology for Sweden shows an annual mean sea temperature of 9°C, ranging from 2°C in winter to 18°C at the summer peak.

The seasonal swing is roughly 16°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.

Recent decades have trended slightly warmer at Sweden, in line with regional sea-surface temperature records for the wider basin.

Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.

Jan
3°C
Feb
2°C
Mar
2°C
Apr
4°C
May
8°C
Jun
13°C
Jul
17°C
Aug
18°C
Sep
15°C
Oct
11°C
Nov
7°C
Dec
5°C

Values are area averages; individual beaches vary by exposure and depth.

Sweden sea temperature: frequently asked questions

What is the warmest month to swim in Sweden?

August is the warmest month in Sweden, when the sea averages about 18°C. Late-season warmth often persists a few weeks after peak.

When is the sea coldest in Sweden?

The coldest month in Sweden is typically February, when the water averages around 2°C. Cold-water swimmers and surfers dominate this period.

When can you swim in Sweden without a wetsuit?

The sea in Sweden rarely climbs above 20°C, so a wetsuit is recommended year-round for anything longer than a quick dip.

Do I need a wetsuit in Sweden?

Outside peak summer the water in Sweden drops toward 6°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable. In peak months most swimmers go without.

What is the average sea temperature in Sweden?

The long-term annual mean sea temperature in Sweden is about 9°C, based on multi-decadal climatology of the surrounding waters.

How do I check the current sea temperature in Sweden?

The live reading at the top of this page shows the current sea temperature in Sweden, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.

Sweden sea temperature by month

Average sea temperatures around Sweden for every month of the year, based on long-term Open-Meteo marine climatology.

Monthly average sea temperature in Sweden
MonthAverage sea
January3.0°C
February2.0°C
March2.0°C
April4.0°C
May8.0°C
June13.0°C
July17.0°C
August ⭐18.0°C
September15.0°C
October11.0°C
November7.0°C
December5.0°C

Monthly figures are modelled climatology averages, not live readings. How accurate is our data?

Coastal regions of Sweden

Region hubs with live sea temperatures, swim conditions and a beach directory.

Skåne
20 beaches
20 tracked beaches in Skåne, Sweden, with live Baltic Sea temperatures.
South Coast
4 beaches
25 tracked beaches in South Coast, Sweden, with live Baltic Sea temperatures.

Warmest beaches in Sweden right now

BeachRegionSea
Pite HavsbadNorrbotten7.6°C
Trouville BeachStockholm7.6°C
Smådalarö BeachStockholm7.6°C
Malmö RibbanSkane7.6°C
Havsbadet NynashamnStockholm Archipelago7.6°C
Gronhogen BeachOland7.6°C
NaringsklevHigh Coast7.6°C
SandhammarenSkåne7.5°C
Getterön BeachWest Coast7.4°C
MellbystrandWest Coast7.4°C
Askim BeachWest Coast7.4°C
Sandhamn TrouvilleStockholm Archipelago7.4°C
Trelleborg BeachSkane7.4°C
Ekstakusten BeachGotland7.4°C
Norsta Aurar BeachGotland7.4°C
MellbystrandHalland7.3°C
Ystad SaltsjöbadSkåne7.3°C
SmygehukSkåne7.3°C
Grebbestad BeachWest Coast7.3°C
Saltö BeachWest Coast7.3°C
Näset BeachWest Coast7.3°C
SmitingenVästernorrland7.2°C
Ingmarsö BeachStockholm7.2°C
SkummeslovsstrandWest Coast7.2°C
Bjorno BeachStockholm Archipelago7.2°C
SudersandSouth Coast7.1°C
Stenshuvud BeachSkåne7.1°C
LyckesandKalmar7.1°C
Lomma BeachSkåne7.0°C
Arild BeachSkåne7.0°C
Sibbarp BeachSkane7.0°C
Björkvik BeachStockholm Archipelago7.0°C
SkanörSouth Coast6.9°C
KnäbäckshusenSkåne6.9°C
Apelviken BeachWest Coast6.9°C
Smogen BeachWest Coast6.9°C
Torekov BeachSkane6.9°C
Fårösund BeachGotland6.9°C
Byrums RaukarOland6.9°C
StorsandVästernorrland6.8°C
Askrike BeachStockholm6.8°C
Hovs HallarSkåne6.8°C
Sudersand Beach FaroGotland6.8°C
Skrea BeachWest Coast6.7°C
Ljunghusen BeachSkane6.7°C
Löttorp BeachOland6.7°C
FalsterboSouth Coast6.6°C
HellasgårdenStockholm6.6°C
Björnö BeachStockholm6.6°C
Sudersand FåröGotland6.6°C
Ljugarn BeachGotland6.6°C
TylösandSouth Coast6.5°C
Långholmen BeachStockholm6.5°C
Ahus BeachSkane6.5°C
Böda SandOland6.5°C
Storsand BeachHigh Coast6.5°C
Mölle BeachSkåne6.4°C
KlockareängensStockholm6.4°C
Bjärehalvön BeachSkåne6.4°C
Löderup BeachSkane6.4°C
Tofta BeachGotland6.4°C
Grisslehamn BeachStockholm Archipelago6.4°C
Ribersborg BeachSkane6.3°C
Kämpinge BeachSkane6.3°C
Bastad BeachSkane6.3°C

Sea temperature in Sweden — FAQ

How warm is the sea in Sweden in November?

The sea off Sweden averages about 7.0°C in November, based on long-term monthly averages for this coast.

When is the best time to swim in Sweden?

Sweden is warmest in August (around 18.0°C) and coldest in February (around 2.0°C). There are typically 0 months a year when the water sits above 22°C.

What is the average yearly sea temperature in Sweden?

Across all twelve months, the sea in Sweden averages about 8.8°C.

Do you need a wetsuit to swim in Sweden?

The sea in Sweden stays below 22°C even at its warmest (~18.0°C in August), so a 3/2mm or thicker wetsuit is recommended for longer swims year-round.