Goiânia climate

Name: Goiânia
Address: BR

Goiânia is warmest in September, with average highs of 32 °C, and coldest in July, when nights average 16 °C. January is the wettest month (220 mm) and July the driest (0.9 mm). Figures are 1991–2020 climate normals.

Across a full year Goiânia averages 1,210 mm of rain and 345 days above 25 °C.

Brazil · population 1,536,097 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month September 32 °C
Coldest month July 16 °C
Driest month July 1 mm
Wettest month January 220 mm
Least cloud August 26 % cloud
Hottest on record October 40 °C
Coldest on record July 7.6 °C

What to expectGoiânia through the year

Goiânia has a clear annual cycle: average daily highs run from 28 °C in July to 32 °C in September, a swing of 4.2 °C in mean temperature across the year.

Counted across a normal year, 345 days a year reach 25 °C, 90 of them reach 30 °C. The warmest reading in the 1991–2020 record is 40 °C, in October.

Rain is strongly seasonal. January averages 220 mm against 1 mm in July — 235 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	27.8 °C	220 mm	80 %
February	28.1 °C	172 mm	76 %
March	27.9 °C	178 mm	72 %
April	28.1 °C	76 mm	53 %
May	27.8 °C	14 mm	42 %
June	27.5 °C	5 mm	34 %
July	27.9 °C	1 mm	27 %
August	30.0 °C	6 mm	26 %
September	31.9 °C	29 mm	41 %
October	31.1 °C	100 mm	63 %
November	28.4 °C	196 mm	77 %
December	27.8 °C	214 mm	82 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	27.8 °C	20.0 °C	23.5 °C	34.5 °C	15.9 °C	27	5
February	28.1 °C	19.9 °C	23.5 °C	35.8 °C	16.5 °C	26	4
March	27.9 °C	19.7 °C	23.4 °C	32.1 °C	16.8 °C	29	3
April	28.1 °C	19.0 °C	23.2 °C	32.5 °C	13.0 °C	29	3
May	27.8 °C	17.3 °C	22.3 °C	31.8 °C	8.9 °C	29	2
June	27.5 °C	16.3 °C	21.7 °C	31.1 °C	8.0 °C	29	0
July	27.9 °C	16.1 °C	21.9 °C	31.3 °C	7.6 °C	30	2
August	30.0 °C	17.8 °C	23.8 °C	34.8 °C	11.1 °C	31	16
September	31.9 °C	20.2 °C	25.9 °C	38.4 °C	13.0 °C	30	25
October	31.1 °C	20.7 °C	25.6 °C	39.7 °C	15.0 °C	31	19
November	28.4 °C	20.0 °C	23.8 °C	35.8 °C	15.9 °C	28	7
December	27.8 °C	20.0 °C	23.5 °C	34.9 °C	16.3 °C	28	4

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	220 mm	22	13 h/day	80 %	80 %	12 km/h
February	172 mm	20	13 h/day	76 %	80 %	11 km/h
March	178 mm	21	12 h/day	72 %	81 %	11 km/h
April	76 mm	12	12 h/day	53 %	74 %	12 km/h
May	14 mm	3	11 h/day	42 %	64 %	12 km/h
June	5 mm	1	11 h/day	34 %	57 %	13 km/h
July	1 mm	0	11 h/day	27 %	49 %	15 km/h
August	6 mm	1	12 h/day	26 %	42 %	15 km/h
September	29 mm	5	12 h/day	41 %	45 %	15 km/h
October	100 mm	14	12 h/day	63 %	61 %	13 km/h
November	196 mm	22	13 h/day	77 %	76 %	12 km/h
December	214 mm	24	13 h/day	82 %	80 %	12 km/h

How Goiânia compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Goiânia	32 °C	16 °C	1,210 mm	345
Aparecida de Goiânia · Brazil	31 °C	16 °C	1,209 mm	336
Anápolis · Brazil	30 °C	16 °C	1,517 mm	307
Águas Lindas de Goiás · Brazil	30 °C	15 °C	1,344 mm	291
Luziânia · Brazil	30 °C	15 °C	1,239 mm	316
Samambaia · Brazil	29 °C	14 °C	1,383 mm	238
Ceilândia · Brazil	29 °C	14 °C	1,360 mm	230

Where Goiânia ranks

Ranking	Position	Value
The driest places in South America in July	31st of 50	0.9 mm
The driest places in South America in May	38th of 50	14 mm
The driest places in South America in June	42nd of 50	4.8 mm
The warmest places in South America in September	42nd of 50	32 °C
The driest places in South America in August	48th of 50	6.0 mm

Planning a trip? See the best time to visit Goiânia.

QuestionsCommon questions about Goiânia’s climate

When is the best time to visit Goiânia?

That depends on what you want, so the honest answer is a comparison rather than a single month. May, June, July sit closest to 20 °C on average, September is the warmest month and July the driest. The month-by-month table above has the full picture.

How hot does Goiânia get?

In September, the warmest month, daily highs average 32 °C. About 90 days a year pass 30 °C. The highest value in the 1991–2020 record is 40 °C.

How cold does it get in winter?

Nights average 16 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Goiânia?

January, averaging 220 mm over 22 days with rain. The driest month is July with 1 mm. The year as a whole averages 1,210 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Goiânia rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: -16.679°, -49.254° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.