Climate Insights for Iguaí

The climate in Iguaí is warm and mild. The average annual temperature is 24°C and approximately 889mm of precipitation falls per year. Iguaí receives a notable amount of rainfall throughout the year, including during its driest month. Iguaí is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: February, March, April. The coldest months are July, September, August, when temperatures can drop to 17°C.

Iguaí sees moderate temperature variation throughout the year, ranging from 17°C to 31°C. The warmest month is February, when average highs reach 31°C and the mean temperature sits around 26°C. July is the coolest month, with minimum temperatures around 17°C and an average of 21°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.

Iguaí is a moderately rainy area, receiving approximately 889mm of precipitation annually, which averages out to around 74mm per month. The wettest month is January, averaging 187mm of rainfall. November and October also tend to see above-average precipitation. The driest month is May, with just 35mm. That's 152mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Iguaí is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently winter in Iguaí, which began on June 21, 2026. Iguaí is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in February at around 31°C, while the coldest stretch bottoms out in July near 17°C. Spring is next, beginning on September 23, 2026 — 61 days from now.

The best time to visit Iguaí is during May, June, July, August, September and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 60mm per month. By contrast, February can be uncomfortably hot with temperatures reaching 31°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Iguaí based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.