Araguaína climate

Name: Araguaína
Address: BR

Araguaína is warmest in September, with average highs of 34 °C, and coldest in July, when nights average 21 °C. February is the wettest month (294 mm) and July the driest (2.8 mm). Figures are 1991–2020 climate normals.

Across a full year Araguaína averages 1,725 mm of rain and 363 days above 25 °C.

Brazil · population 183,024 · 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 34 °C
Coldest month July 21 °C
Driest month July 3 mm
Wettest month February 294 mm
Least cloud August 29 % cloud
Hottest on record September 38 °C
Coldest on record July 16 °C

What to expectAraguaína through the year

Araguaína has a clear annual cycle: average daily highs run from 33 °C in July to 34 °C in September, a swing of 3.5 °C in mean temperature across the year.

Counted across a normal year, 363 days a year reach 25 °C, 222 of them reach 30 °C. The warmest reading in the 1991–2020 record is 38 °C, in September.

Rain is strongly seasonal. February averages 294 mm against 3 mm in July — 105 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.8 °C	289 mm	84 %
February	29.0 °C	294 mm	86 %
March	29.0 °C	281 mm	85 %
April	29.4 °C	198 mm	75 %
May	30.2 °C	88 mm	60 %
June	31.8 °C	9 mm	39 %
July	32.6 °C	3 mm	30 %
August	33.9 °C	4 mm	29 %
September	34.2 °C	26 mm	39 %
October	32.2 °C	103 mm	58 %
November	30.3 °C	193 mm	77 %
December	29.5 °C	238 mm	80 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	28.8 °C	22.1 °C	25.0 °C	33.9 °C	19.8 °C	30	6
February	29.0 °C	22.1 °C	25.0 °C	33.2 °C	20.0 °C	28	7
March	29.0 °C	22.2 °C	25.1 °C	33.3 °C	20.4 °C	30	7
April	29.4 °C	22.2 °C	25.4 °C	33.1 °C	19.6 °C	30	10
May	30.2 °C	22.1 °C	25.9 °C	34.7 °C	18.4 °C	31	17
June	31.8 °C	21.5 °C	26.6 °C	34.5 °C	17.5 °C	30	28
July	32.6 °C	20.9 °C	26.9 °C	36.0 °C	15.8 °C	31	31
August	33.9 °C	21.2 °C	27.8 °C	36.9 °C	16.9 °C	31	31
September	34.2 °C	22.5 °C	28.5 °C	37.6 °C	18.5 °C	30	29
October	32.2 °C	22.8 °C	27.3 °C	37.4 °C	18.4 °C	31	27
November	30.3 °C	22.6 °C	26.1 °C	36.6 °C	19.6 °C	30	17
December	29.5 °C	22.4 °C	25.5 °C	34.7 °C	20.4 °C	31	12

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	289 mm	28	12 h/day	84 %	86 %	9.0 km/h
February	294 mm	26	12 h/day	86 %	86 %	9.0 km/h
March	281 mm	28	12 h/day	85 %	86 %	8.7 km/h
April	198 mm	22	12 h/day	75 %	85 %	8.9 km/h
May	88 mm	12	12 h/day	60 %	78 %	11 km/h
June	9 mm	2	12 h/day	39 %	62 %	14 km/h
July	3 mm	0	12 h/day	30 %	53 %	15 km/h
August	4 mm	1	12 h/day	29 %	49 %	15 km/h
September	26 mm	4	12 h/day	39 %	55 %	13 km/h
October	103 mm	14	12 h/day	58 %	71 %	11 km/h
November	193 mm	21	12 h/day	77 %	81 %	9.6 km/h
December	238 mm	26	13 h/day	80 %	84 %	9.3 km/h

How Araguaína 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
Araguaína	34 °C	21 °C	1,725 mm	363
Imperatriz · Brazil	35 °C	23 °C	1,235 mm	365
Parauapebas · Brazil	33 °C	22 °C	1,511 mm	363
Marabá · Brazil	34 °C	23 °C	1,706 mm	363
Palmas · Brazil	35 °C	21 °C	1,886 mm	363

Where Araguaína ranks

Ranking	Position	Value
The warmest places in South America in August	24thof 50	34 °C
The warmest places in South America in July	25thof 50	33 °C
The warmest places in South America in June	25thof 50	32 °C
The warmest places in South America in September	25thof 50	34 °C
The warmest places in South America in October	32ndof 50	32 °C
The driest places in South America in July	39thof 50	2.8 mm

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

QuestionsCommon questions about Araguaína’s climate

When is the best time to visit Araguaína?

That depends on what you want, so the honest answer is a comparison rather than a single month. January, February, March 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 Araguaína get?

In September, the warmest month, daily highs average 34 °C. About 222 days a year pass 30 °C. The highest value in the 1991–2020 record is 38 °C.

How cold does it get in winter?

Nights average 21 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Araguaína?

February, averaging 294 mm over 26 days with rain. The driest month is July with 3 mm. The year as a whole averages 1,725 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 Araguaína 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
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.