Drinking enough is important - whether it is warm or rather cool. Drinking water is available free of charge at various places in Cologne:
Drinking water wells of RheinEnergie
The energy supplier RheinEnergie currently operates 16 drinking fountains in Cologne. They are accessible round the clock – usually from April to the end of October – so that people can get a drink of water or cool off:
- City centre/Eigelstein: Eigelsteintorburg
- City centre/Neumarkt: Zeppelinstraße
- City centre/Deutz: Deutzer Freiheit in front of St. Heribert's
- City centre/Südstadt: Elsaßstraße (near Bonner Straße)
- City centre/Südstadt: Agrippina-Ufer/Skatepark
- Rodenkirchen: Maternusplatz
- Lindenthal: Jahnwiese (at the stadium), height Adenauer pond
- Ehrenfeld: Subbelrather Straße, height Takufeld
- Bilderstöckchen: Blücherpark, Parkgürtel
- Nippes: Am neuen Sportpark, height Merheimer Straße
- Chorweiler: In the park at the Weichselring sports facility
- Chorweiler: At the Weiler waterworks
- Porz: Bahnhofstraße, Porz pedestrian zone
- Porz: Glashüttenstraße, Porz Park
- Kalk: Barcelona-Allee, Bürgerpark Kalk
- Mülheim: Jan-Wellem-Straße, in the southern part of the Mülheimer Stadtgarten
Drinking water at refill stations
Refill is an initiative for free tap water - everywhere, for everyone. At Refill stations Bottles brought along are filled with refreshing tap water free of charge.
All year round and not just when it's hot.
Everywhere where the blue sticker is affixedYou will receive tap water free of charge in the bottle (or a jam jar or similar) that you bring with you and thus avoid plastic waste.
All Refill stations - also outside Köln - are on the map here. At https://refill-deutschland.de/ just look up where the nearest refill station is to get free drinking water. The RheinEnergie drinking water wells are also available there. to find.
Hot again in Köln? 11 heat tips
The city of Köln gives some tips on its website about what to do when it's hot in Köln. Of course, drinking a lot is one of them. Water is best. Read more in the section "11 heat tips for everyday life" under https://www.stadt-koeln.de/leben-in-koeln/klima-umwelt-tiere/klima/hitzeportal-koeln/hitze-verhaltenstipps.
[Information about RheinEnergie’s drinking water wells (https://blog.rheinenergie.com/blog/trinkwasserspender-und-wassertheke-unser-wasser-gratis-to-go/88): last accessed on 14 August 2026. All information is provided without guarantee; as at 14 August 2026]