Goiânia climate — normals and trends
Goiânia (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 23.2 °C and it receives 1,270 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is September (25.4 °C on average) and the coldest is June (21.1 °C). Rainfall peaks in December.
Goiânia averages 0 frost days, 104 hot days (≥ 30 °C) and 156 rainy days per year.
Goiânia has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.7 °C (on 16 October 1963) and the coldest 5.2 °C (on 9 June 1985).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
GoiâniaGoiás
- coords
- -16.68°, -49.25°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.2°C
Average daily high
28.7°C
Average daily low
18.5°C
Annual rainfall
1,270mm
Sunshine / day
10.3h
Mean relative humidity
67%
Average peak wind
12.8km/h
Seasonal range
4.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
104 d/yr
Rainy days (≥ 1 mm)
156 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.1 °C
Average feels-like low
19.2 °C
Average peak gust
29.8 km/h
Tropical nights (≥ 20 °C)
95 d/yr
Solar radiation
19.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.52 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
39.7 °C
16 October 1963
Coldest day
5.2 °C
9 June 1985
Wettest day
141 mm
20 November 1994
Windiest day
35.1 km/h
13 January 1978
Strongest gust
63.7 km/h
13 January 1978
Hottest feels-like
40.9 °C
20 October 1963
Coldest feels-like
1.1 °C
9 June 1985
Sunniest day
12.9 h
19 January 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 28.2 °C | +0.3 °C | 183 mm | -30 mm |
| Feb | 29.6 °C | +1.5 °C | 88 mm | -97 mm |
| Mar | 30.2 °C | +2.1 °C | 90 mm | -85 mm |
| Apr | 28.9 °C | +0.7 °C | 80 mm | -3 mm |
| May | 28.2 °C | +0.5 °C | 2 mm | -21 mm |
| Jun | 28.5 °C | +1.0 °C | 3 mm | -3 mm |
| Jul | 28.4 °C | +0.5 °C | 0 mm | -5 mm |
| Aug | 30.8 °C | +0.6 °C | 0 mm | -6 mm |
| Sep | 32.7 °C | +0.9 °C | 37 mm | +5 mm |
| Oct | 32.5 °C | +1.9 °C | 23 mm | -101 mm |
| Nov | 31.2 °C | +2.7 °C | 135 mm | -61 mm |
| Dec | 28.5 °C | +0.8 °C | 160 mm | -65 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Goiânia?
Goiânia has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 23.2 °C and it receives 1,270 mm of precipitation per year.
What is the hottest day ever recorded in Goiânia?
The hottest day measured in Goiânia between 1940 and 2025 was 16 October 1963, reaching 39.7 °C.
What is the coldest day in Goiânia?
The coldest day measured in Goiânia between 1940 and 2025 was 9 June 1985, at 5.2 °C.
Does it snow in Goiânia?
Almost never: Goiânia sees virtually no snow, with about 0 frost days per year.
Has the climate of Goiânia warmed?
Yes: Goiânia warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Goiânia?
The wettest day measured in Goiânia between 1940 and 2025 was 20 November 1994, with 141 mm of rain in 24 hours.
What was the windiest day in Goiânia?
The windiest day measured in Goiânia between 1940 and 2025 was 13 January 1978, with winds reaching 35.1 km/h.
What is the warmest month in Goiânia?
The warmest month in Goiânia is September (25.4 °C on average); the coldest is June (21.1 °C).
How much does it rain in Goiânia?
Goiânia receives on average 1,270 mm of precipitation per year, spread over about 156 rainy days.
Is it sunny in Goiânia?
Goiânia gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
Are there tropical nights in Goiânia?
Yes: Goiânia has on average 95 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Goiânia?
In Goiânia, between 1940 and 2025, the highest apparent temperature reached 40.9 °C on 20 October 1963, and the lowest was 1.1 °C on 9 June 1985.
Compare Goiânia with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Goiânia