Copenhagen This Week: Heat Alerts, Metro Delays, and a Harbour Swim Controversy

Copenhagen issued its first formal heat advisory of the summer on Wednesday, with the Danish Meteorological Institute recording 33.4 degrees Celsius at Landbohøjskolen station — the hottest reading in the capital since August 2021. The alert, valid through Friday evening, urged residents to check on elderly neighbours and avoid strenuous outdoor activity between noon and 4 p.m. City health officials at Copenhagen Municipality confirmed that ambulance call-outs rose roughly 18 percent compared with the same three days last week.

The timing matters. France recorded more than 2,000 excess deaths during its own peak heatwave last month, and climate researchers at the Danish Climate Atlas have been warning since spring that July 2026 would bring Denmark at least two extended heat episodes. Copenhagen's emergency planners had been briefed on the French figures; this week's heat spike is being treated as a dry run for whatever arrives later this month.

Harbour Baths Proposal Sparks Political Fight

The heat only intensified an already bitter argument at the Rådhus. A proposal circulating within the Technical and Environment Committee would introduce timed entry slots — capped at 400 people per hour — at Islands Brygge Harbour Bath and Sluseholmen Harbour Bath during peak summer weekends, citing overcrowding and water-quality monitoring difficulties. Supporters point to E. coli readings taken at Islands Brygge on three separate Saturdays in June that briefly exceeded EU bathing-water safety thresholds.

Critics are loud. Neighbourhood associations in Amager and Vesterbro circulated a joint letter this week arguing the restrictions would effectively price out working families who rely on the free public facilities. The harbour baths have been a central piece of Copenhagen's public space identity since Islands Brygge opened in 2002, and any restriction carries significant political weight ahead of the municipal elections scheduled for November 2025 — elections in which incumbent Lord Mayor Sophie Hæstorp Andersen's Social Democrats are already facing pressure from both the left and the centre-right.

The committee has not voted. A public consultation period opens Monday, July 6, and runs for three weeks.

Metro Disruptions Bite Through the Holiday Week

Commuters on the M2 line between Copenhagen Airport and Vanløse endured delays of up to 22 minutes on Tuesday morning after a signalling fault near Christianshavn station halted service for just over an hour during rush hour. Metro Cityringen, the operating company, said the fault was traced to a software update rolled out overnight. Replacement buses ran between Kongens Nytorv and Christianshavn for 73 minutes.

It is the third significant disruption on the M2 in six weeks. Metroselskabet, the publicly owned company that manages the network, acknowledged the pattern in a statement and said an external technical review commissioned from a German rail consultancy would report findings by September 1. The Copenhagen Cyclists' Federation — Cyklistforbundet — noted dryly on its website that cycle-track capacity on Torvegade had absorbed a measurable spike in traffic during both Tuesday's disruption and an earlier June incident.

Separately, the new Lynetteholm metro extension remained on schedule according to By & Havn, the city development agency overseeing the project. Groundwork on the Nordhavn connector section is set to continue through August without interruption, officials said.

Residents dealing with the heat and transit headaches this weekend have a few practical options. The city's klimaflygtning cooling centres — designated air-conditioned public spaces — are open at Bispebjerg Library, Amager Strandpark's visitor centre, and the main hall of Copenhagen Central Station through Sunday. The harbour bath question will be decided through the public consultation; those who want to submit views can do so via the municipality's online Bliv Hørt portal from Monday. And on the metro: Metroselskabet advises checking the official app before travelling, particularly on the M2, until the signalling review concludes in September.

This article was compiled by AI and screened before publishing. See our editorial standards.