‘When this collides with a region of low pressure around Italy’s Gulf of Genoa, the flow of high and low pressure areas draws in a current of cold air from further north in France. When other parts of France have clouds and storms, Provence is rarely affected for long, since the mistral quickly clears the sky. In less than two hours, the sky can change from completely cloud-covered to completely clear. This clarity of the air and light is one of the features that attracted many French impressionist and post-impressionist artists to the South of France.