The best time to visit Alca is during the dry season, which runs from April to November.
During these months, you'll experience clear skies and minimal rainfall, making it ideal for exploring the Colca Canyon and engaging in outdoor activities like hiking. The weather is generally pleasant, with warm days and cooler nights. This period is particularly good for travelers interested in photography, as the clear conditions offer excellent visibility of the canyon's dramatic landscapes.
For those planning to trek or spend extended time outdoors, the shoulder months of April, May, September, and October offer a balance of good weather and fewer crowds. The temperatures are mild, and the trails are less busy, providing a more serene experience for adventurers.
While December to March is the rainy season, characterized by occasional heavy downpours, it can still be a good time to visit if you don't mind some rain.