Ultimate Guide To Peru Weather: Seasons & Averages

Average Temperature and Precipitation

In Peru, you can experience different climates depending on where you are. Each region has its own average temperatures and rainfall patterns... which can surprise you!

Coastal Regions - Coastal (la Costa) – Lima

The coastal regions of Peru offer a fascinating blend of weather patterns and temperatures.

The coast is something else — hot, arid, and often misty. You wouldn't think fog in a desert, right? That's Garua for you. And Lima? Expect overcast skies. The temperature is quite bearable, though: 23°C on average. Feels like 22°C, but the clouds make it seem cooler.

The summer, from December to April, cranks up the heat. It can reach a sizzling 45°C. That's right, 110 degrees Fahrenheit! But don’t worry; it’s a dry heat.

From May to October, winter takes hold. It's milder but humid. The fog rolls in. Garua — ever-present, like a ghostly shroud. The annual rainfall? A mere 150 millimeters. Enough to keep the dust down, not much - more. Temperatures along the coast usually range between 13˚C and 26˚C.

Enjoy the ever-shifting coastal weather!

Mountainous Regions - Andes Region (la Sierra) - Arequipa, Cusco, Machu Picchu, Puno

Andes weather can be tricky. In Arequipa, Cusco, and Machu Picchu, the temperatures change with altitude. 

 The Andes offer varied climates due to altitude. Daytime temperatures during the wet season hover from 64°F to 68°F. Nights get chilly, around 59°F. For the best hiking experience, such as the Rainbow Mountain trek or the Inca Trail, aim for the dry season from June to September.

Jungle Regions - Amazon Rainforest (la Selva) - Iquitos, Tambopata, Manu

The lowlands on the eastern flanks of the Andes offer access to the lush, humid expanse of Peru's rainforest regions. The Amazon jungle, a place of sweltering heat and incredible biodiversity, is a place like no other.

Traveling through this verdant expanse can be overwhelming. The northern Amazon sees rivers swell from December to May (ideal for river cruising), while they shrink between June and November. The south, meanwhile, experiences its own rhythm. Hotter, but equally rainy from December to March. A place where humidity envelops you like a blanket. Rain pours, drenching the forest floor, then tapers off to give moments of calm.

This jungle does not have a true dry season. Even during its driest months, rain remains a constant companion. It’s the epitome of untamed nature – wild, beautiful, and wet.

Peru's weather can be wild and unpredictable, but it's part of the adventure. Whether you’re in Lima’s coastal fog, Cusco’s Andean peaks, or the steamy Amazon... there’s always something unique to experience.

Plan well and pack smart. Enjoy Peru's stunning landscapes across its diverse climate zones!