The best time to visit Calca is during the dry season, which runs from May to October.During these months, you'll experience clear skies and plenty of sunshine, making it ideal for exploring the Sacred Valley and enjoying outdoor activities. Daytime temperatures are pleasant, typically ranging from 20-25°C, though evenings can be cool, so a light jacket is always a good idea. This period is superb for hiking to archaeological sites or simply enjoying the stunning mountain scenery without the worry of rain.While November to April is the wet season, it can still be a good time to visit if you don't mind occasional showers. The landscape becomes very lush and green, and there are fewer tourists, which can mean a more tranquil experience. However, some hiking trails might be muddier, and views can sometimes be obscured by clouds.