Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Pulse Hub Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Peru’s weather is defined by three distinct zones—the arid coast, the seasonally wet Andes, and the humid Amazon—so conditions vary widely depending on where you are, making the live forecast above essential for trip planning.
What is the climate like across Peru’s regions?
The coast, including Lima, stays mild and foggy (garúa) from May to October, while summer (December–March) is warmer and sunnier. The highlands, including Cusco, have a dry season (April–October) and a wet season (November–March). The Amazon basin is hot and humid year-round, with heaviest rain from December to March. Peru weather year round is best understood by region rather than a single national picture.
When is the best time to visit Peru?
For the coast and Lima, December to April offers the most sunshine. For the highlands and Cusco, the dry months of May to September provide clearer skies and easier trekking. The Amazon is driest from June to September. Peru weather October and Peru weather December are transitional months: October sees the highlands drying out, while December marks the start of the wet season and the coast warming up.
What is the weather in Lima like year-round?
Lima has a mild desert climate with no real extremes. Summer (Dec–Apr) is warm and sunny, 22–27°C. Winter (Jun–Sep) is cooler, 15–19°C, with persistent fog and drizzle. Lima Peru weather by month shows very little rainfall but constant humidity near the coast.
What is the weather in Cusco like?
Cusco sits at 3,400 metres, so days are warm but nights are cold year-round. The dry season (May–Sep) offers sunny days and chilly nights. The wet season (Nov–Mar) brings afternoon rain and occasional thunderstorms. Peru weather Cusco is most stable from June to August.
When is the rainy season in Peru?
The rainy season runs November to March in the highlands (Cusco, Machu Picchu) and December to March in the Amazon. The coast sees almost no rain year-round; Lima averages only 10 mm annually. Peru weather by month shows the driest highland conditions from May to September.
Sources
For Australian travellers comparing conditions, see our Australia weather hub and severe weather warning page.