The best time to visit Gréville-Hague is during the late spring and summer months, from May to September, when the weather is mild and the days are long.May and June offer pleasant temperatures, often around 15-20°C, and fewer crowds than the peak summer months. This period is ideal for exploring the coastal paths and enjoying the blossoming countryside without the intense heat or the busiest tourist season. You'll find most local attractions, like the Jean-François Millet House, open and accessible.July and August are the warmest months, with temperatures frequently reaching 20-25°C, making them superb for enjoying the beaches and outdoor activities. However, this is also the busiest time, so you can expect more visitors, especially at popular spots like the Cap de la Hague and local markets. If you're planning a beach holiday or want to experience the region at its most active, these months are good, but booking accommodation and restaurants in advance is advisable.September is another excellent option, as the weather remains comfortable, typically around 18-22°C, and it's less busy. The sea is still warm enough for swimming, and the autumn colours start to appear in the landscape, offering a different kind of beauty.