If you're looking for summer vibes, the best time to travel to Lake Geneva,Wi is in June, July and August, when the average temperature reaches 22.79 °C, while July, August and September are the 3 sunniest months of the year, with an average of 146.89 hours.
If you prefer colder temperatures, however, make sure you visit Lake Geneva,Wi during the months of January, February and March to experience an average of -5.96 °C.
For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during January, February and March, when the average precipitation in Lake Geneva,Wi is 6.75 mm, while the months of January, February and March are drier, with an average of 0 mm.