Benchmarked strictly across TripTiming's 5 empirical pillars: Crowds, Weather, Vibes, Prices, and Safety.
Zurich emerges as the optimal May destination with an overall TripTiming Index of 61/100 vs 60/100 for Lucerne (+1 point advantage). Zurich delivers a decisive lodging value advantage (~$291/night vs ~$342/night in Lucerne, saving ~$357 across a 7-night stay). While Lucerne retains an edge in Weather Comfort (63/100 vs 57/100), Zurich's commanding performance in Price & Value secures the overall May recommendation.