Itaipu Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Itaipu.
Climate overview of Itaipu
With consistently stable weather, Itaipu, Rio de Janeiro State, Brazil, sees little seasonal temperature change. Daytime highs average 28°C (82°F), ranging from 32°C (90°F) in February to 26°C (79°F) in July.
The city has a wet climate, receiving around 1226 mm (48 in) of rainfall per year. January is the wettest month. The sunniest month is January, with 7.1 hours of sunshine per day on average.
Itaipu Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Itaipu — and find the best time to visit.
Monthly Temperature in Itaipu
The climate in Itaipu remains fairly constant, offering comfortable temperatures throughout the year. On average, daytime temperatures range from a very warm 32°C (90°F) in February to a comfortable 26°C (79°F) in July.
Nighttime temperatures range from 24°C (75°F) in February to 19°C (66°F) in July.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Itaipu
Itaipu is known for its substantial rainfall, with annual precipitation reaching 1226 mm (48 in). The seasons in Itaipu bring significant changes in precipitation. The wettest month, January, receives heavy rainfall, with an average of 168 mm (6.6 in) of precipitation. This rainfall is distributed across 20 rainy days.
In contrast, the driest month, August, experiences much less rainfall, totaling 43 mm (1.7 in) over 9 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Itaipu Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Itaipu
Itaipu enjoys sunny spells year-round. January sees up to 7.1 hours of daily sunshine, perfect for a sunny trip. September, the least sunny month, still offers a generous 4.8 hours of sun despite this cloudier time of the year.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Water Temperature in Itaipu
The mean water temperature over the year ranges from 21°C (70°F) in August to 26°C (79°F) in February.
Water temperature over the year
Humidity in Itaipu by Month
The relative humidity is high throughout the year in Itaipu.
The city experiences its highest humidity in March, reaching 80%. In July, the humidity drops to its lowest level at 77%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Itaipu
The mean wind speed over the year ranges from 2 m/s (4 knots) in April, May, June and July to 4 m/s (8 knots) in November. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Itaipu
Make your experience more enjoyable by planning to be outside during the cooler parts of the day, either early morning or as the sun begins to set. Visitors should note that especially January brings substantial rainfall. Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
Frequently asked questions about the climate in Itaipu
What is the best time to visit Itaipu?
April, May, June, July, August, September and October typically offer the most optimal weather in Itaipu. In contrast, January, February, March and December tend to have less optimal conditions.
What temperatures can I expect in Itaipu?
Daytime highs range from 26°C (79°F) in July to 32°C (90°F) in February. Nighttime lows range from 19°C (66°F) to 24°C (75°F). Temperatures stay relatively stable year-round.
How much rain does Itaipu get?
Annual rainfall is around 1226 mm (48 in). January is the wettest month with 168 mm (6.6 in), while August is the driest with 43 mm (1.7 in).
How sunny is Itaipu?
Itaipu receives around 2,183 hours of sunshine per year. January is the sunniest month with 212 hours, while September is the cloudiest with just 144 hours. Overall, Itaipu enjoys abundant sunshine.
Itaipu 3-Day Forecast
Itaipu 3-Day Forecast
Itaipu on the map
Itaipu is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Fortaleza
31°C (88°F) Salvador
26°C (79°F) Rio de Janeiro
26°C (79°F) Búzios
25°C (77°F) Sao Paulo23°C (73°F) Paraty23°C (73°F) Florianópolis21°C (70°F) Gramado
19°C (66°F) 
Bucket list
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.
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.
Iguazu Falls
Iguazu Falls are among the largest waterfalls on earth. You will be speechless when you see this miracle of mother nature. They are included in the World Heritage List and have also been named one of the seven wonders of the world.