Basel, Switzerland, in May typically experiences spring weather characterized by mild temperatures, increasing sunshine, and occasional rainfall. Average daytime highs range from 15-20C (59-68F), while nighttime lows hover around 8-12C (46-54F). This period represents a transition from cooler spring days to warmer summer conditions.
Pleasant temperatures and blooming flora make May an attractive time to visit Basel. The city’s outdoor spaces, including parks and riverside areas, become popular destinations. This time of year offers favorable conditions for exploring the city’s historical sites and enjoying outdoor activities. Historically, May has marked the beginning of the more active tourist season for the region.