Climate Insights for Petrolina de Goiás

The climate in Petrolina de Goiás is warm and mild. The average annual temperature is 24°C and approximately 1081mm of precipitation falls per year. February is the wettest month, receiving around 210mm of rainfall. Petrolina de Goiás 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, October, August. The coldest months are July, June, August, when temperatures can drop to 15°C.

Petrolina de Goiás sees moderate temperature variation throughout the year, ranging from 15°C to 34°C. The warmest month is September, when average highs reach 34°C and the mean temperature sits around 27°C. July is the coolest month, with minimum temperatures around 15°C and an average of 22°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between August and September, with a 2°C shift in average temperatures.

Petrolina de Goiás is a moderately rainy area, receiving approximately 1081mm of precipitation annually, which averages out to around 90mm per month. The wettest month is February, averaging 210mm of rainfall. December and January also tend to see above-average precipitation. The driest month is June, with just 0mm. That's 209mm 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.

Petrolina de Goiás is relatively calm, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13km/h in winter, 13km/h in spring, 11km/h in summer, 10km/h in autumn.

It is currently autumn in Petrolina de Goiás, which began on March 20, 2026. Petrolina de Goiás 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 15°C. Winter is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Petrolina de Goiás is during April, May, June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 14mm per month. By contrast, September can be uncomfortably hot with temperatures reaching 34°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Petrolina de Goiás 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.