- Warning valid below 600 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). Allow air to circulate through your home or other buildings before the hot part of the day, i.e. during the night and early in the morning. Avoid vigorous physical activity or compensate for salt loss during or after sport activities. - Highest temperatures and humidity: 32 - 35 °C, 35 - 45 % - Lowest night temperatures: 15 - 19 °C - Peak phase of the event: - - Temporary mitigation: -