Winters in Zug are chilly and variable, with temperatures often dropping below freezing but occasionally rising into the mid-teens. Mornings can be particularly cold, especially in January, while afternoons may see more moderate conditions. As spring arrives in March and April, temperatures gradually warm up, allowing for occasional highs above 20°C. Summers are mild to warm, with July and August averaging around 18-19°C, but still experiencing some cooler mornings. Autumn brings a return to cooler conditions, with temperatures dipping below freezing by November, although there can be brief warmer periods throughout the season.