Cusco, Peru

Cusco sits at altitude in Peru, and the 2015–2024 weather record gives its sunshine a clear shape: the August peak reaches an 85/100 sun score, with daytime highs around 18°C — a solid base for a culture-first visit.

September is the heat peak, averaging 19°C highs; March is the cool end, when nights dip to around 4°C. The wet–dry contrast is pronounced: 94% rain-day odds in February against 6% in June. Note that average highs never reach 24°C in any month — pack for mild weather rather than hot.

The seasonal arc is clear in the data: summer averages 18°C against winter's 17°C, while rain-day odds move from 90% in winter and 55% in spring to 13% in summer and 59% through autumn. That makes summer the statistical sweet spot (season score 83), with autumn a workable second; winter is where the odds thin out.

Best months to visit Cusco

Our month-by-month scoring puts August first (85/100), with July (84) and September (83) close behind. The dependable window is wider than the podium, though: April–November all score 70 or better. Skip February if sunshine is the point — it bottoms out at 56/100.

Among the mountain destinations in our catalog, its August rain odds beat 82% of the field.

Month-by-month breakdown for Cusco → · More destinations for August →

Right now the 15-day outlook shows none mostly-clear days (under 40% cloud) and 7 with real rain risk, with temperatures between 6°C and 22°C — which is how Cusco earns its current 92/100 sun score.