The best time to go to Mirgas is during the dry season, which runs from May to September.
During these months, the weather is generally sunny and clear, with lower humidity and less chance of rain. This makes it ideal for exploring the region's natural beauty and outdoor activities, such as hiking in the Cordillera Blanca mountains or visiting the nearby archaeological sites. The daytime temperatures are pleasant, typically ranging from 15°C to 20°C, though evenings can be cooler.
For those who enjoy trekking and mountain expeditions, July and August are particularly good months as the trails are usually in excellent condition. The clear skies offer spectacular views of the snow-capped peaks, a major draw for adventure travellers.
If you prefer a quieter experience with fewer crowds, May and September are excellent choices.