– Peru’s climate varies depending on when and where you visit – On the coast it is usually quite hot although during the winter (April to August) it can get chilly early in the morning and at night. – In the Andes there are two main seasons – wet and dry. The wet season runs from November to April and is wet but usually warmer overall. The dry season runs from May to October and has hot clear days but cold nights – The only thing you can say about the weather in Peru is that it is difficult to accurately predict. There can be beautifully clear, hot days in the middle of the wet season and hail storms in the dry season – it is one of the beauties of Peru.