When does it rain in Peru in 2026?

Lima airport and coastal stations often record only single-digit to low tens of millimetres of annual rain, which is why the capital is routinely called one of the world’s driest large cities. Morning garúa can wet pavement from about May through November without becoming a soaking storm: Living in Lima and Humidity in Peru. Northern coast cities such as Piura see more measurable summer rain than central Lima, still far below Amazon totals.

Andean corridors around Cusco and many trail towns concentrate rain roughly November through March, with January and February among the wettest months and clearer dry weeks often around May through September: Altitude and climate. Afternoon showers and muddy roads matter more than all-day drizzle for movers. Arequipa stays relatively dry for a highland city, with annual totals often under roughly 100 mm and summer months carrying most of that: Living in Arequipa. Amazon cities such as Iquitos stay warm with heavy rainforest moisture year-round: Where to live in Peru.

On the coast, plan for grey mist more than flood weekends; Costa Verde runs still happen under cloud if you dress for chill: Outdoor recreation. In the sierra, lock hiking and plaza weeks into the drier half when you can, and expect wet-season mud if you lease in Cusco. Confirm fibre and heater habits for damp Lima flats: Utilities, internet, and transport. Climate shortlist: Best climate. SENAMHI city forecasts beat a single “Peru rainy season” widget.