May and June are the most pleasant months to visit Marseille, as this is when the weather is most pleasant. During the high summer of July and August, the humidity and temperatures get high, and the city itself can be uncomfortable - although relaxing on the beach is a joy. The school holidays are always quite busy in the South of France, due to the region's popularity for family holidays. February is a good time to visit for lower prices, and some nice weather, and is also the time when you get to see the carnival.