March- October (Summers): Rapperswil has warm and temperate climate most of the year and summer season sees a very warm as well as wet climate. The precipitation is significant with 1100 mm rainfall annually. The place is generally warm in nature and can get a bit humid because of the rainfall. There are many activities available in the summers, from hiking to cycling there is enough going on in the city for everyone. January is the driest month in the year. The average temperature is 17 degree Celsius.
November-February (Winters): Winter season is a great time to go to the destination as the place becomes a beautiful paradise at the time. The place sees precipitation all the year around and winters is no exception .The weather can get chilly in the winters and it can go as low as -2 degree Celsius so be ready for a frosty experience. The average temperature is around 3 degree Celsius.