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Berlin Weekend: The Temperatures and Records Behind the Story
A recorded peak of 39.9°C on July 18 2026 formed the central statistic amid documented storm effects, one confirmed drowning and one tournament suspension.
How we reported this

Berlin recorded its hottest day on record on Saturday July 18 2026 when the temperature reached 39.9°C with forecasts indicating possible peaks of 40°C over the weekend. This single measured figure anchored reporting on multiple incidents that followed.
Temperature Data as Central Statistic
The 39.9°C reading supplied the primary number against which other events were assessed. Forecasts of up to 40°C provided the second quantified projection for the same period. Both values originated from the same verified record set and shaped immediate operational responses across the city.
Friday Storm Effects on S-Bahn Operations
A severe storm on Friday produced a documented S-Bahn collision with a fallen tree. Lightning strikes and cable fires disrupted multiple lines with delays continuing into Saturday. These transport figures illustrate the direct physical impact of the preceding weather on the rail network serving daily commuters.
Incident at Krumme Lanke Lake
A 17-year-old boy drowned at Krumme Lanke lake on Saturday. Classmates contacted emergency services after they were unable to locate him. The age of the individual and the location constitute the only specific identifiers released in connection with the event.
Berlin Open Final Outcome
Organizers suspended the final of the Berlin Open tennis tournament on Sunday because of severe weather conditions and evacuated the event location. The decision followed directly from the same weekend temperature and storm data already recorded.
Nollendorfplatz Station Renaming
The Nollendorfplatz U-Bahn station was renamed Nollendorfplatz im Regenbogenkiez to recognize the city's Pride district. This change stands as a permanent administrative update independent of the weekend weather statistics yet occurring within the same reporting period.
The 39.9°C measurement and the 40°C forecast remain the only numerical values that connect the listed events. Residents seeking further details on any of these matters can consult the official sources that recorded the temperature and documented the subsequent incidents. Future updates will depend on additional verified measurements from the same authorities.