Monaco in May typically experiences pleasant Mediterranean spring weather. Average temperatures range from lows around 15C (59F) to highs near 21C (70F), creating comfortable conditions for outdoor activities. Sunshine is abundant, and rainfall is relatively low, making it an attractive time to visit.
This period offers a favorable climate for exploring the principality, whether strolling through the Jardin Exotique, enjoying the beaches, or attending the renowned Monaco Grand Prix, often held towards the end of the month. The pleasant weather avoids the peak summer heat and crowds, allowing visitors to experience Monaco at a more relaxed pace. Historically, May has marked the beginning of the tourist season, with the influx of visitors boosting the local economy.