STHLM Triathlon (Stockholm Triathlon)
Stockholm (Djurgården), Sweden · August · Independent
Why people love it
- Swim from a sandy beach in a sheltered city bay, per the organiser
- Parkland course in the royal national city park, close to central Stockholm
- Recreational sprint and Olympic classes ride non-drafting
- Small field, capped at 350 entries
- Kids' Tri4Fun alongside the adult races
Watch out for
- Recreational classes sold out in 2026, so register early
- Sources disagree on the swim venue; check the current course map
- Wetsuit rule and water temperature are not published
- The run is a 2.5 km (1.6 mi) loop, mostly gravel, so slower than road
- No athletes have written about aid, crowds or the bike; T1 and T2 are separate
Race
How racers feel about it, how well it is run, and how it treats a first timer. Counts for 30% of the overall score.
Toughness: Tough
- Racer satisfactionLoved3.5
No athlete has written about it; the only evidence is listings, and the recreational classes sold out in 2026. · Low confidence
- OrganizationWell run3.5
A capped field of 350 and a sea-traffic closure arranged for 2024; no participant reports. · Low confidence
- First timer friendlyDoable3.0
Recreational non-drafting Olympic class with no beginner support found; 1.5 km (0.93 mi) open-water swim. · Low confidence
Course traits, not part of the score
- PR potentialAverage3.3
No elevation or times found. · Low confidence
Swim
Wetsuit odds, water temperature, calm, and the experience of the start. Counts for 16% of the overall score.
- Wetsuit legalCoin flip3.4
Rule not found. Baltic August water of 18 to 21 °C (64 to 70 °F) is usually under the 24.6 °C (76.3 °F) limit. · Low confidence
- Water temperatureComfortable3.5
Regional August water is typically 18 to 21 °C (64 to 70 °F); no race-specific reading. · Low confidence
- Calm waterMostly calm3.7
Sheltered city bay or inlet; no one has reported on it. · Low confidence
- Swim easeModerate3.3
Open water of 1.5 km (0.93 mi); the venue is unclear. · Low confidence
- Swim experienceGreat3.6
Sandy beach start in a city parkland setting, per the organiser. · Low confidence
- Swim supportGood3.6
The water area was closed to boat traffic in 2024; kayak and lifeguard cover is not published. · Low confidence
Bike
Road surface, closures, scenery and wind. Counts for 18% of the overall score.
- Road surfaceGood3.5
City park roads; no reports. · Low confidence
- Road closuresPartly closed3.4
Not stated whether roads are fully closed. · Low confidence
- Bike sceneryBeautiful3.8
Passes the royal park and Kaknästornet per the tourism listing. · Low confidence
- WindSome wind3.4
No wind reports. · Low confidence
Course traits, not part of the score
- Bike speedAverage3.3
Repeated park loop; surfaces and climbs are unknown. · Low confidence
- Bike flatnessMostly flat3.5
Stockholm parkland is gently rolling; gain is not published. · Low confidence
- Bike simplicitySome technical parts3.0
Multi-lap loop through park and city streets; turns are unknown. · Low confidence
Run
Crowds, aid stations, conditions underfoot and scenery. Counts for 13% of the overall score.
- Crowd supportDecent3.3
Small field with the finish at Stora Skuggan; no crowd reports. · Low confidence
- Aid stationsStandard3.3
Nothing published on aid stations. · Low confidence
- Run sceneryBeautiful3.8
Royal national city park setting. · Low confidence
- Run conditionsModerate3.2
Mostly gravel paths on a 2.5 km (1.6 mi) loop. · Low confidence
Course traits, not part of the score
- Run flatnessMostly flat3.5
Parkland loop of 2.5 km (1.6 mi); gain is unknown. · Low confidence
Conditions
Air temperature, how predictable the weather is, setting, and spectating. Counts for 13% of the overall score.
- Air temperaturePleasant4.1
August in Stockholm is typically 14 to 23 °C (57 to 73 °F), a regional estimate. · Low confidence
- Weather reliabilityReliable3.5
Swedish summer with some rain risk; no race reports. · Low confidence
- Venue beautyLovely4.0
Royal park and waterfront per the organiser; no race photos seen. · Low confidence
- Spectator friendlyEasy3.7
Compact finish area with repeated loops. · Low confidence
Course traits, not part of the score
- Low altitudeSea level5.0
About 20 m (66 ft) above sea level. · High confidence
Stay and travel
Hotels, walkability, getting there, and the town around the race. Counts for 10% of the overall score.
- Hotel availabilityGood3.8
Capital city with many hotels, but summer demand. · Low confidence
- Hotel valueNormal3.0
Stockholm hotels are expensive; no race prices found. · Low confidence
- WalkabilityWalkable3.5
Swim, T1, T2 and finish are all in Djurgården but at separate points; parking is unknown. · Low confidence
- Travel easeEasy4.3
Arlanda is about 40 km (25 mi) away with trains. · Medium confidence
- LogisticsSome complexity3.1
Separate T1 at Lektorsstigen and T2 at Stora Skuggan; pickup and parking not found. · Low confidence
- Town and foodGood4.4
Stockholm is a major city with abundant food. · Medium confidence
Key facts
- Location
- Stockholm (Djurgården), Stockholm County, Sweden
- Typical month
- August
- Latest or next date
- 8 August 2027
- Organiser
- Independent
- Field size
- About 350 athletes
- Distances
- 1.5 km (0.9 mi) swim, 40 km (24.9 mi) bike, 10 km (6.2 mi) run
- Swim venue
- Lappis beach, Lilla Värtan (organiser course page); older listings and a 2024 sea-traffic closure cite Djurgårdsbrunnsviken (bay)
- Swim start
- unknown
- Run laps
- 4
- Run shade
- parkland
- Air temperature
- 14–23 °C (57–73 °F)
- Humidity
- moderate
- Altitude
- 20 m (66 ft)
- Nearest airport
- Stockholm Arlanda (ARN), 40 km (25 mi) away
- Where to stay
- Östermalm, Norrmalm, Djurgården
- Booking
- Central Stockholm hotels; Djurgården is a few km (miles) from the centre. Parking and packet pickup not found.
What racers and reviewers say
- Visit Stockholm event pageRaced 2025 · article · Positive
Tourism listing: swim in Djurgårdsbrunnsviken, bike past Kaknästornet, run along the Djurgårdsbrunnskanalen; called Sweden's largest triathlon. Dates were still TBA when checked.
- running.life STHLM Triathlon pageRaced 2026 · aggregator · Positive
Listing for 9 August 2026 at Stora Skuggan with a 350-person cap and prize money for the senior classes. Olympic 1,500 m (0.93 mi)/40 km (24.9 mi)/10 km (6.2 mi), sprint 750 m (0.47 mi)/20 km (12.4 mi)/5 km (3.1 mi). Recreational Olympic and sprint classes sold out.
- STHLM Triathlon organiser: om tävlingenRaced 2026 · article · Positive
Organiser course page: swim at Lappis beach in Lilla Värtan (sandy, 'a hidden oasis'), T1 at Lektorsstigen, a repeated bike loop around Laduviken, T2 at Stora Skuggan and a 2.5 km (1.6 mi) mostly-gravel run loop. Marketing source, treat as facts only.
- Länsstyrelsen Stockholm notice 2024Raced 2024 · article · Positive
Government decision closing the Djurgårdsbrunnsviken water area to vessels on 3 August 2024, 06:00 to 20:00, for the triathlon, with safety boats exempt. Shows the swim area is officially cleared of boat traffic.
- Triathlon Magazine Canada: Stockholm Royal Park Aquathlon 2013Raced 2013 · article · Positive
A 2013 aquathlon used the same Djurgårdsbrunnsviken water and park setting, the same bay used as a 1912 Olympic venue. Only indirect evidence for this race (page not read, from search snippet).
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Sources
Pages we used for facts and ratings. See how we rate.
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