Switzerland is characterized by cold winters in mountainous areas, and hot summers in plains, along with a lot of precipitation. The climate is moderate with no excessive heat, cold or humidity. From July to August, the warmest months, the daytime temperature ranges from 18 to 28 °C (65° - 82° F) and in Spring and Autumn, the daytime temperature range is 8 to 15 °C (46° - 59° F). You can have a week of rain as well as a week of cloudless skies almost any time of the year.