Climate Insights for Foz do Iguaçu

The climate in Foz do Iguaçu is warm and mild. The average annual temperature is 23°C and approximately 304mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. Foz do Iguaçu 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, January. The coldest months are November, December, October, when temperatures can drop to 6°C.

Temperatures in Foz do Iguaçu vary considerably across the year, with a 22°C difference between the coldest and warmest months. The warmest month is February, when average highs reach 28°C and the mean temperature sits around 27°C. November is the coolest month, with minimum temperatures around 6°C and an average of 12°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between November and December, with a 10°C shift in average temperatures.

Foz do Iguaçu is a quite dry location, receiving approximately 304mm of precipitation annually, which averages out to around 25mm per month. The wettest month is January, averaging 33mm of rainfall. March and April also tend to see above-average precipitation. The driest month is June, with just 6mm. That's 27mm 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.

Foz do Iguaçu is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 6km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently winter in Foz do Iguaçu, which began on June 21, 2026. Foz do Iguaçu 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 28°C, while the coldest stretch bottoms out in November near 6°C. Spring is next, beginning on September 23, 2026 (16 days from now).

The best time to visit Foz do Iguaçu is during June, July, August, September, October and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 20mm per month. By contrast, February can be uncomfortably hot with highs reaching 28°C, while November is the coldest period with lows dropping to 6°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Foz do Iguaçu 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.