The largest and best known festival in Menton is the Lemon Festival. The citrus fruit industry is quite big in Menton, as it is one of the only cities in France whose climate is warm enough to produce them. Menton residents are therefore very proud of their local agricultural products. In February, the city park is decorated with these fruits (sometimes stacked to make giant statues) as bands march through the streets and people indulge in festivities and food for several days. The festival usually has a theme every year, with recent ones being Neverland and Viva l'Espana (Long Live Spain).

There are also a variety of other unique events in Menton. One of the Course de Côte Régionale, an auto race that takes place in early September. It is an excellent spectator sport, as the long track allows many spectators to line up along the road to watch the drivers. Another race is the Grand Prix de Karting, a go-kart race that takes place around the same time. There is also a junior division for children 7 to 10 years old.

A more refined festival is the Menton Festival of Music, which takes place every August. Over a period of about two weeks, classical musicians put on concerts throughout the city (most commonly in the Palais de l'Europe, Chapelle des Pénitents Blancs and Parvis Saint Michel). In addition to orchestras and string groups, there are also solo recitals by up-and-coming stars from around the world.