Cusco · Month comparison

August vs May

May ranks #1 overall vs August at #7. The dry season arrives — clear skies, the Inca Trail fully open, and Machu Picchu at its most reliably beautiful.

Cusco August — aerial view of the historic city spread across its Andean valley with terracotta rooftops in dry-season sunshine

August

#7 of 12 months

Strong option

Second peak month — still superb weather, still peak prices; consider September instead for identical conditions with fewer visitors.

  • ↑Near-identical weather to July: 23mm rainfall, 8.0 sunshine hours, and clear skies across virtually every day — the dry season remains in full effect
  • ↑Slightly easier to get Machu Picchu timed-entry tickets than in July, particularly for late August — the absolute peak begins to ease
Cusco May — Plaza de Armas with the cathedral and dramatic clouds over the ancient colonial square

May

#1 of 12 months

Best match

The dry season arrives — clear skies, the Inca Trail fully open, and Machu Picchu at its most reliably beautiful.

  • ↑Dry season proper begins: 44mm of rain is minimal, skies are consistently clear, and the mountain views from Machu Picchu and the Sacred Valley are sharp and unobscured
  • ↑Inca Trail permits are still available in May (unlike the July–August peak when they sell out months ahead) — the optimal window for hiking with full conditions and manageable crowds
FactorAugustMay
Weather score
9
9
Value score
2
6
Crowd score
2
6
Events score
6
7
Atmosphere
7
8
Avg high temp20°C20°C
Monthly rain23mm44mm
Daily sunshine8hrs7.8hrs

August trade-offs

  • ↓Hotel prices remain at their annual peak; August is still firmly high season and the discounts of September have not yet arrived
  • ↓Machu Picchu crowd levels are essentially identical to July — the site is managed at capacity and a truly uncrowded experience is not available at any price point
  • ↓Inca Trail Classic permits have been sold out for months — any booking at this stage will be for an alternative trail

May trade-offs

  • ↓Nights are cold (4°C) and can catch visitors off guard; altitude at 3,400m intensifies the chill — warm layers are non-negotiable
  • ↓Prices begin rising as the dry season is recognised; May is still moderate but more expensive than the wet-season months
  • ↓Inca Trail permits for the popular Classic Trail sell out in advance — book at least two to three months ahead for May departures
See all 12 months for Cusco →August in detail →May in detail →
Scores compare months within Cusco. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →