The best time to go to Kaiseraugst is during the late spring (May to June) and early autumn (September to October) when the weather is mild and pleasant, superb for exploring the area.During these months, the temperatures are comfortable, typically ranging from 15°C to 25°C, making it ideal for outdoor activities like walking along the Rhine River or visiting the Augusta Raurica Roman settlement without the intense heat of summer or the chill of winter. The natural scenery is also at its most appealing, with spring blossoms or autumn colours adding to the beauty of the landscape.For those interested in historical sites and gentle outdoor pursuits, these periods offer the best conditions. You can comfortably spend a day exploring the ancient ruins of Augusta Raurica, which is largely an open-air museum, or enjoy a boat trip on the Rhine. These months also tend to be less crowded than the peak summer season, offering a more relaxed experience.Families travelling with children will also find these times suitable. The milder weather allows for comfortable exploration of the Roman sites, which often include interactive exhibits, and there's less concern about extreme temperatures affecting younger travellers.