The best time to go to Grimaldi is during the shoulder seasons, specifically from April to early June and again from September to October. These periods offer pleasant weather, fewer crowds, and a more relaxed experience.During April to early June, the spring flowers are in full bloom, making the coastal paths and hillside villages particularly scenic. The temperatures are comfortable for exploring, typically ranging from the mid-60s to low 70s Fahrenheit (18-23°C), superb for leisurely walks or enjoying outdoor dining without the intense summer heat.September and October also provide excellent conditions. The summer crowds have largely departed, but the sea remains warm enough for swimming into early October. The weather is generally sunny with mild temperatures, similar to spring, often ranging from the low 70s to high 60s Fahrenheit (20-23°C).