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The Dry Season (April â September) From mid-April through until the end of September is considered the dry season at Machu Picchu. Days are bright and sunny with daily average temperatures of 18 Â°C (64 Â°F), after sunset (around 6.15pm) temperatures drop down to around 10 â 12 Â°C (50 â 54 Â°F) and evenings are cooler.
Machu Picchu Trek. Best Time to Hike Machu Picchu. To answer your question straight out, the best time to hike Machu Picchu, in our opinion, is on the shoulder months of the dry season, Late April / Early May and Late September / Early October. At these times the trails tend to be significantly quieter than peak season, the Citadel less packed and the weather conditions relatively good.