Climate Overview
The climate in Iguaí is temperate. The average annual temperature is 10°C and approximately 292mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. 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: April, May, June. The coldest months are July, December, November, when temperatures can drop to 5°C.
Temperature
Iguaí has relatively stable temperatures year-round, staying within a 8°C range. April is the warmest month, though highs remain moderate at 13°C with a mean of 13°C. July is the coolest month, with minimum temperatures around 5°C and an average of 6°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows. The sharpest temperature change occurs between June and July, with a 5°C shift in average temperatures.
Precipitation
Iguaí is a quite dry location, receiving approximately 292mm of precipitation annually, which averages out to around 24mm per month. The wettest month is August, averaging 33mm of rainfall. September and October also tend to see above-average precipitation. The driest month is March, with just 11mm. That's 22mm less than August, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Iguaí is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 10km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.
Seasons
16 days until Spring
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 April at around 13°C, while the coldest stretch bottoms out in July near 5°C. Spring is next, beginning on September 23, 2026 (16 days from now).
Spring
Temperatures range from 8 to 11°C. Rainfall is relatively light, with around 98mm over the season and a monthly average of 33mm. Winds are generally light, averaging 13km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 8 to 11°C. Rainfall is relatively light, with around 64mm over the season and a monthly average of 21mm. Winds are generally light, averaging 9km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 10 to 13°C. Rainfall is relatively light, with around 58mm over the season and a monthly average of 19mm. Winds are generally light, averaging 6km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.
Winter
Temperatures range from 5 to 12°C. Rainfall is relatively light, with around 72mm over the season and a monthly average of 24mm. Winds are generally light, averaging 8km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
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.
