Climate Overview
The climate in Ji Paraná is hot. The average annual temperature is 26°C and approximately 1653mm of precipitation falls per year. February is the wettest month, receiving around 276mm of rainfall. Ji Paraná 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: September, August, July. The coldest months are July, June, August, when temperatures can drop to 20°C.
Temperature
Ji Paraná sees moderate temperature variation throughout the year, ranging from 20°C to 34°C. The warmest month is September, when average highs reach 34°C and the mean temperature sits around 28°C. July is the coolest month, with minimum temperatures around 20°C and an average of 26°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.
Precipitation
Ji Paraná is a fairly wet location, receiving approximately 1653mm of precipitation annually, which averages out to around 138mm per month. The wettest month is February, averaging 276mm of rainfall. December and March also tend to see above-average precipitation. The driest month is July, with just 2mm. That's 274mm less than February, 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.
Wind
Ji Paraná 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 August, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.
Seasons
88 days until Winter
It is currently autumn in Ji Paraná, which began on March 20, 2026. Ji Paraná 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 September at around 34°C, while the coldest stretch bottoms out in July near 20°C. Winter is next, beginning on June 21, 2026 — 88 days from now.
Spring
Temperatures range from 23 to 34°C. Rainfall is heavy, totalling around 366mm across the season with a monthly average of 122mm. Winds are generally light, averaging 9km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 769mm across the season with a monthly average of 256mm. Winds are generally light, averaging 9km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 22 to 30°C. Rainfall is heavy, totalling around 479mm across the season with a monthly average of 160mm. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 20 to 34°C. Precipitation is minimal, with only around 38mm for the entire season. Winds are generally light, averaging 10km/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 Ji Paraná 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.
