The 10 most alternative cities in South America
Discover South America's top 10 alternative cities! From Valparaíso's vibrant streets to La Paz's high-altitude charm and Medellín's innovative spirit.
Alto Tapajos, Brazil has a consistently very warm climate year-round, with daytime highs averaging 32°C (90°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.
The temperature in Alto Tapajos remains steady throughout the year, providing a consistently very hot climate. Maximum daytime temperatures range from a very hot 36°C (97°F) in August to a very warm 31°C (88°F) in January. Nights are mild year-round, with lows ranging from 23°C (73°F) in August to 22°C (72°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Alto Tapajos by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. August, the city's warmest month, averages 261 hours of sunshine.
The chart below shows the average temperature throughout the year:
The map below shows the annual temperature across Brazil. You can also select individual months if you want to compare a specific time of year.
Alto Tapajos's average annual maximum temperature is 32°C (90°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate, hot dry summers and mild wet winters.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Alto Tapajos this rarely lasts long on the ground.
For more on Alto Tapajos's weather, including monthly rainfall, sunshine hours, and humidity, visit our Alto Tapajos climate page.
Pick a month to see the average temperature, rainfall and sunshine in Alto Tapajos - and find the best time to visit.
Temperature Rainfall Sunshine Wind Speed
See the full Alto Tapajos climate overview or explore weather in Brazil.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
The 10 most alternative cities in South America
Discover South America's top 10 alternative cities! From Valparaíso's vibrant streets to La Paz's high-altitude charm and Medellín's innovative spirit.
The 5 most tranquil retreats in the Amazon Rainforest, Brazil
Discover top sustainable lodges in the Amazon. Enjoy unique wildlife, eco-friendly stays, and immersive experiences at Anavilhanas, Cristalino, and more.
Brazil in November: Where Is the Best Weather?
Discover where Brazil has the best weather in November, comparing Fortaleza, Salvador, Rio, São Paulo, Florianópolis, Brasília and Foz do Iguaçu.
An alternative way to discover Rio de Janeiro
Don't feel like seeing the traditional tourist sights in Rio de Janeiro? We have made an overview of the sights in Rio de Janeiro that you must see if you want to visit Rio in an alternative way.