Lyon Maps Out Cooler Routes Through the City During Heatwaves

Lyon – 29 July 2026: On hot days, in densely built-up cities, the choice of street can often determine how strenuous even a short walk becomes. Lyon therefore offers an interactive map that directs pedestrians along routes through shaded, green and less heat-exposed areas. Franceinfo reported on Wednesday on such digital tools for adapting everyday urban life to high temperatures.

According to the city, the map lists more than 700 freely accessible, relatively cool locations. These include shaded parks and gardens, drinking fountains, museums, historic passageways and public buildings with cooled rooms. They serve as stopover points where people can interrupt their journeys, drink water or temporarily escape direct sunlight.

The recommended routes link several of these locations. Unlike conventional route planners, the service is therefore not based exclusively on the shortest or fastest connection. It highlights detours through green spaces, along shaded streets or to sheltered places to rest. According to the city, the routes were developed jointly with the Collectif des Associations du Rhône Pour l’Accessibilité. This is intended, where possible, to take account of the needs of people with reduced mobility.

The map is particularly useful for everyday walking trips. Before setting off, users can select a library, a park or a drinking fountain as a rest stop. Lyon points to more than 300 public drinking fountains. During the warmer season, misting installations and other freely available ways to cool down are also provided in the arrondissements.

The service is part of the municipal Objectif fraîcheur program. Under it, Lyon brings together information on cooler indoor and outdoor spaces as well as assistance for people who are particularly at risk during heatwaves. When municipal protective measures are activated, the Centre Communal d’Action Sociale contacts registered older people or those in need of assistance.

However, digital guidance is no substitute for health precautions. Authorities recommend drinking regularly, avoiding physical exertion during the hottest hours, and paying particular attention to older people living alone, young children and people with chronic illnesses. Cooler routes can nevertheless reduce strain by helping people avoid long stretches in direct sunlight and on heavily heated streets.

Météo-France classified the heatwave from 17 to 30 June 2026 as unusually early, long-lasting and very intense. The renewed high temperatures now make municipal heat maps an immediately useful part of urban preparedness for residents and visitors.