- Warning valid below 800 m a.s.l. - Possible impacts: Significant risk of circulatory problems. - Recommendations for action: Drink (preferably unsweetened) liquids regularly and in sufficient quantities (at least 1.5 litres a day). Avoid vigorous physical activity or compensate for salt loss during or after sport activities. - Highest temperatures and humidity: 32-35 °C, 30 - 60 % - Lowest night temperatures: 17-20 °C, jusqu'à 22 °C en zone urbaine et à proximité des lacs. - Peak phase of the event: - - Temporary mitigation: -