Published at June, 20 2025

Updated on August, 05 2025

Heatwaves: How to stay safe

Once again, "an unseasonal heatwave" is sweeping across France, with temperatures rising above 35°C (95°F). This phenomenon is not entirely new: it reflects the broader pattern of climate change. As heatwaves occur more frequently and earlier in the season, hit harder and last longer, we will have to adapt and take the necessary precautions. In this regard, the government has elaborated a quick guide to help you stay safe.

Ministère des Solidarités et de la Santé

Estimated read time: 3 minutes

If average temperatures rise by 4°C (approximately 39.2°F) France could be facing the following consequences by 2100: 
  • Temperatures above 40°C (104°F) could occur every year
  • Certain areas could suffer from unprecedented heat peaks of up to 50°C (122°F).
  • The number of extreme heat days could increase tenfold

(source Météo-France)


Standard Climate Warming Scenario for Climate Change Adaption Strategies (In French: TRACC)

Stay Informed

To keep the public informed, Météo-France and public health authorities issue alerts ahead of extreme heat events.

The “Vigilance” warning system, available on Météo-France official website and social media channels, provides information on upcoming heatwaves that may pose health risks, with detailed real-time updates by region for today and the following day. 

Users may also opt to receive notifications of the Météo-France mobile app, to be informed when one or more selected departments are placed under an orange or red heatwave alert. 

A seasonal health monitoring system, overseen by the French National Public Health Agency (Santé publique France), also allows to track the intensity of heatwaves and implement relevant prevention measures outlined in the ORSEC  Plan (National Emergency Plan in Case of a Natural Disaster). 

Implement necessary precautions 

At the same time, to help everyone to take appropriate preventive measures the “Coping with Heat” website, created by the French National Public Health Agency (Santé publique France), brings together useful habits and tips to include in your daily routine. 

  • Road Trip: Key tips for travelling by car this summer
  • Public Transport: In coordination with local authorities, transport companies are preparing for upcoming heatwaves by implementing measures to maintain service quality and support passengers. In the event of extreme heat, the SNCF and the RATP launch a specific plan to ensure trains and suburban rail (RER) are fully prepared for high temperatures and closely monitor key infrastructure. Passengers can get free bottles of water in train and Métro. 
    Airports, have implemented measures to provide information, adjust air conditionning, and help both passengers and staff stay cool. 
    Plan your journey in advance and follow all instructions provided at the train station or airport.
  • Fire risk: Be wildfire smart – act fast, act right! 

Worker protection

In response to the risks posed by extreme heat, the government is taking action to protect workers. 

From July 1, 2025, employer’s obligations to safeguard employees from heat-related risks will be reinforced by Decree 2025-482. This new regulation aligns with the Third French National Adaptation Plan for Climate Change (PNACC-3). Preventive measures come into force as soon as a yellow weather warning is issued. 
 

The new provisions also apply to public sector employees. 
Finally, construction work stoppages may be eligible for compensation in the event of extreme heat, starting from the orange level weather warning.
 

Learn more