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Hottest South American Destinations. Sorted

Planning an escape to the Southern Hemisphere? Discover the hottest destinations in South America with our real-time weather tracker. This continent offers incredible climatic diversity, from the tropical humidity of the Amazon Rainforest and the sun-drenched beaches of Brazil to the arid heat of the Atacama Desert.

Because South America spans both hemispheres, you can find summer weather year-round. Whether you are seeking winter sun in Cartagena, chasing the peak of summer in Rio de Janeiro, or heading to the surf-friendly shores of Máncora, our live 5-day forecasts help you find the highest temperatures. Compare the hottest cities right now and book your South American adventure with our “Same Price as Booking Direct” guarantee.

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When is the best time to visit South America for hot weather?

For the “Southern Cone” (including Argentina, Chile, Uruguay, and Southern Brazil), the hottest weather occurs during their summer from December to March. In these months, cities like Rio de Janeiro and Buenos Aires frequently see temperatures above 30°C (86°F). For equatorial regions like Colombia and Ecuador, it is hot year-round, with temperatures dictated more by altitude than by season.

If you are planning to visit Cusco, Machu Picchu, or Quito, the rainy season typically runs from November to April. While it remains warm, heavy afternoon showers can impact mountain travel. For the clearest trekking weather and bright Andean sun, visit during the dry winter months of May to October.

The Northeast coast of Brazil (Fortaleza, Recife, Salvador) offers some of the most consistent beach weather in the world, with tropical temperatures and warm ocean water 12 months a year. Alternatively, the Caribbean coast of Colombia (Cartagena and Santa Marta) provides a dry, scorching heat that is perfect for winter sun seekers from the Northern Hemisphere.

Yes. The Amazon Basin (Manaus, Brazil or Iquitos, Peru) is consistently hot and humid, with temperatures hovering around 30°C to 32°C (86°F to 90°F) year-round. The “dry season” (July to December) is slightly hotter and makes wildlife viewing easier as animals gather at receding water sources.

Visa policies vary significantly. Many nationalities can visit Peru, Colombia, and Argentina visa-free for tourism. However, Brazil has recently updated its visa requirements for several countries, including the US, Canada, and Australia. Always check the latest entry requirements before booking your flight.

Since these are the most popular spots for “winter sun,” hotels can fill up quickly during the holiday season and school breaks. We recommend using our weather widgets above to find the best current weather and book your flight and hotel together to lock in the “Same Price as Booking Direct” rates.

Don’t get hit with massive roaming charges while checking your maps in the sun. We recommend using a service like Saily (by NordSecurity). You can set it up in one click before you land, ensuring you have data the second you step off the plane.