Best Time to Visit Machu Picchu 2026: Complete Seasonal Guide Key Takeaways Dry season (May-September 2026) offers optimal conditions with 10-20% rain probability, clear mountain views, and comfortable temperatures ranging 20-23°C (68-73°F) during daytime though expect maximum crowds and premium pricing Shoulder months (April, October 2026) provide the best balance combining 70-80% […]