Open Water Swimming in Stockholm — City Beaches, Lakes & Ice Dips

🏊 Swimming in the capital

Stockholm is one of the few capitals where the water in the middle of the city is clean enough to swim in — Lake Mälaren flows into the Baltic right through town. Locals swim off the quays, beaches and cliffs from May to September, and winter dippers keep going all year at spots like Hellasgården.

🌡️ Water temp — Mälaren and the inner Baltic reach 18–22°C in July–August, drop fast after September, 0–4°C in winter
🧂 Brackish water — the Baltic is nearly fresh, so no wetsuit needed for most of summer
🚇 Easy access — almost every spot below is reachable by T-bana, bus or ferry
💬 Questions? Email CliveSwims — happy to help you plan a swim

City centre & Lake Mälaren

Smedsuddsbadet, Rålambshovsparken Kungsholmen · T-bana: Fridhemsplan, then 10 min through the park · Stockholm's biggest city beach — 100+ m of sand on Mälaren with a long jetty, lawns and a pontoon offshore · swim parallel to shore for a protected ~400 m loop · packed on hot weekends, empty at dawn · showers, café, beach volleyball

Långholmen T-bana: Hornstull, then over Västerbron footbridge · the old prison island has a sandy beach on the east side and granite cliffs on the west — deep-water entries off the rocks, mini caves and a sandy shallow at Långholmens strandbad · circumnavigating the island is a classic ~2.5 km open water loop

Fredhällsbadet Kungsholmen south shore · bus to Fredhäll then down the rocks · pure cliff swimming — deep Mälaren water straight off sun-warmed granite, ladders every few metres · afternoon sun, views toward Liljeholmen · no beach, so it's confident swimmers only

Brunnsviksbadet Frescati · T-bana Universitetet · sheltered brackish bay behind Stockholm University — shallow sandy entry, very calm, water warms early in the season · the gentlest first open water swim in the city

Trekanten, Liljeholmen T-bana: Liljeholmen · small deep lake ringed by docks and a boardwalk — warms fast, flat water, popular for lunchtime lengths · a local secret compared to the harbour beaches

Tanto strandbad & Årstaviken Södermalm · T-bana Zinkensdamm · sandy beach on Årstaviken with views of the city hall — lively evening scene; the Söder quays toward Hornstull are used by locals for sunrise laps

Vinterviken Aspudden · T-bana then through the Nobel park · tiny sheltered cove with a small cliff jump and café — more dip-and-sunbathe than distance, but one of the city's most atmospheric spots

Mälarhöjdsbadet & Kanaanbadet Mälaren's western arm · bus from Mälarhöjden or Hässelby · long shallow family beaches on the lake's south shore — calm water, sand underfoot, good for beginners and easy long swims along the buoys

Lakes & reserves — a bit further out

Hellasgården, NackaYEAR-ROUND Bus 401 from Slussen · Källtorpssjön lake in the nature reserve — Stockholm's best-known year-round swim spot · saunas beside the jetty, an ice hole kept open all winter, women-only and mixed sauna hours · a 300 m lap buoy line in summer

Flaten & Flatenberget Bus from Gubbängen/Skarpnäck · forest lake with Stockholm's highest diving tower (up to 10 m) and cliff entries on the far shore — some of the warmest water near the city · naturist section on the south side

Drevviken Huddinge · huge glacial lake — distance swimmers' favourite: long straight shorelines, clear sightlines, several beaches (including a nudist section at the south end) · skaters in winter, ultra swimmers in July

Sicklasjön Nacka · Tvärbanan Sickla · sheltered lake between the hills — easy dock entries, quiet morning crowd of regulars doing laps along the north shore

Lötsjön, Sundbyberg T-bana Rissne · small lake with a proper sandy beach and lawns — shallow and warm, good for a relaxed evening dip

Judarskogen & Ängbybadet, Bromma T-bana Ängbyplan · big sandy Mälaren beach beside the nature reserve — shallow entry, piers, and forest right behind the beach; one of Stockholm's longest official strands

The archipelago & Baltic side

Fjäderholmarna 25 min by ferry from Slussen/Nybrokajen · the archipelago's doorstep — granite slabs, clear brackish water, cafés on the island · an easy first taste of archipelago swimming between the rocks

Saltsjöbaden ~25 min by Saltsjöbanan · proper sea swimming at the edge of the archipelago — sandy bays, wooden jetties and open Baltic water · cooler and fresher than the lake side

Vaxholm & the inner archipelago Ferry or bus 670 from Tekniska högskolan · island-hopping swims around the fortress town — sheltered channels, rocky islets, plenty of quiet coves between boat wakes

Grinda ~1.5 h ferry · classic mid-archipelago island — swimming off smooth granite slabs with a café and jetty; a proper swim-and-day-trip

Utö & the outer islands Day-trip distance · remote granite-slab swimming with real open-water feel — wind, fetch and boat wakes; bring everything you need and watch the fairways

Sandhamn ~2.5 h ferry · the outer archipelago's postcard island — sandy Trouville beach, island rocks, and real Baltic swell on the seaward side

Races & group swims

Riddarfjärdssimningen Late summer · the classic city-centre open water race — swimming across Riddarfjärden between the bridges, with the City Hall as your sighting mark · one of Sweden's oldest mass swims

Stockholm archipelago SwimRun races Summer · several SwimRun races use the islands between the city and the outer archipelago — the sport was born here at ÖTILLÖ; check the season calendar early, entries sell out

Winter dips — Hellasgården Nov–Mar · regular group dips and saunas beside the ice hole — the friendliest way to try ice swimming in Stockholm

Simsällskapet & local swim clubs Year-round · Stockholm's swimming clubs run coached open water sessions — the best way to meet regulars and learn the local spots

⚠️ City swimming — do it safely

Watch boat traffic — ferries and leisure boats move fast; stay inside marked swim areas near fairways
Brackish Baltic water is calm but still cold — shock risk is real outside July–August
Check water quality notices (Stockholm publishes bathing-water results for all official beaches)
Cliff entries: check depth first and use the ladders — never dive blind
Winter dips: go with the Hellasgården regulars, keep it to seconds, warm up slowly
Never swim alone — bring a buddy or join a group swim