- Warning valid below 600 m a.s.l. - Possible impacts: Moderate risk of circulatory problems. - Recommendations for action: Drink (preferably unsweetened) liquids regularly and in sufficient quantities (at least 1.5 litres a day). Protect yourself from direct sunlight (stay in the shade, wear suitable clothing, a hat, sunglasses and sun cream). Contact those around you who fall into the risk category and ensure that they are well and able to follow the existing recommendations. - Highest temperatures and humidity: 30 - 32 °C, 30 - 50 % - Lowest night temperatures: 18 - 21 °C