Weather in Goiania in September 2025
- September is usually the hottest month of the year in Goiania;
Average weather
Average temperature in Goiania in September
The expected average maximum temperature in September is +33°C with a maximum of +36°C and a minimum of +18°C.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +33°C to +33°C.
Is Goiania warm or cold in September?
Goiania is typically hot in September.
Maximum temperatures go up compared to the previous month from +30°C to +32°C. The minimum temperature also goes up from +17°C to +19°C.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
September is the hottest month in Goiania, here is the comparison with other months:
Climate in Goiania in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +30°C | +32°C | +31°C | ||||
| Min. temperature | ||||||
| +9°C | +12°C | +14°C | ||||
| Max. temperature | ||||||
| +36°C | +39°C | +40°C | ||||
| Rainfall | ||||||
| 7 mm | 32 mm | 106 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 1 m/s | ||||
| Humidity | ||||||
| 49% | 52% | 65% | ||||
| Air pressure | ||||||
| 1015 HPa | 1013 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 20 | 12 | 4 | ||||
| Cloudy days | ||||||
| 8 | 7 | 5 | ||||
| Rainy days | ||||||
| 3 | 9 | 17 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September typically has worse weather conditions compared to August. It’s getting warmer as September arrives. The average maximum temperature goes up from +30°C to +32°C during the day. Prepare for more rain. Average rainfall goes from 7 mm to 32 mm. Humidity rises from 49% to 52%. The average wind speed doesn’t change much during September, staying around 2 m/s. The days becoming less sunny, going from 20 sunny days in August to 12 in September.
October brings much the same weather, it remains good.
Wind
The average wind speed is 2 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Goiania is gradually decreasing during September, going from 3 m/s to 2 m/s over the course of the month.
Rain
How was the weather last September in Goiania?
Climate Change over Years
The climate in Goiania in September has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+28°C) and the highest in 2019 (+31°C). The driest year was 2023 with only 742 mm of rainfall, and the wettest year was 1992 with 1817 mm.
FAQ
Is September a good time to visit Goiania?
Can you sunbathe in Goiania in September?
Is Goiania rainy in September?
Is it sunny in Goiania in September?
Other cities in Brazil
Monthly weather in Goiania
Source of the data
For this page, we’ve looked at the typical weather in Goiania, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.