Peruvian winter (June-August)
The driest season is the best time to travel especially if you are planning to visit the Cusco area or hike to Machu Picchu.
Peruvian summer (December-February)
This is the wettest season. Temperatures are high and the nights are very cool.
Peruvian spring (March to May and September-October)
These are the most unpredictable seasons with varying weather patterns.
Coast (la costa) – Lima, Nasca, Trujillo, Arequipa
December – April
The weather is hot and dry with temperatures reaching 25-35°C. Beaches are especially busy during January and February when they coincide with local holidays.
May-October
The temperatures are much colder and humidity is high. The majority of the coast, including Lima, is shrouded by a gray mist called gerua. Only the northern beaches are warm enough for swimming.
Mountain highlands (La Sierra) – Cusco, Lake Titicaca)
May-October
The rain is scarce during this time. Daytime temperatures are 20-25°C and nights are near freezing, especially in June and July. May is the best month to visit this place with lush vegetation, temperate weather and stunning views.
December-March
Rainfall is abundant during this time. Temperatures range from 18-20°C during the day and dropping to 15°C at night. Tourism is slower during these months, and some areas may be unobtainable due to excessive rain.
January – February
These two months are the wettest of the year. Mornings are generally dry, but clouds move in and produce heavy downpours in the afternoon.
Jungle (La Selva) – Iquitos, Manu, Puerto Maldonado
The jungle is consistently humid and tropical with significant rainfall year round. However, there are still two very distinct seasons.
May-October
Temperatures reach 30-38°C during the day. However, cold fronts are common where temperatures can drop to 15°C during the day and 13°C at night. This is the best time of year to visit and enjoy with fewer mosquitos, more exposed beaches and better animal watching opportunities.
November-April
Frequent rain showers occur in short bursts, lasting only a few hours at time. The rivers swell and the humidity is exceptionally high.
