Rondonópolis climate

Name: Rondonópolis
Address: BR

Rondonópolis is warmest in September, with average highs of 34 °C, and coldest in July, when nights average 18 °C. January is the wettest month (266 mm) and July the driest (6.4 mm). Figures are 1991–2020 climate normals.

Across a full year Rondonópolis averages 1,348 mm of rain and 358 days above 25 °C.

Brazil · population 263,708 · 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 18 °C
Driest month July 6 mm
Wettest month January 266 mm
Least cloud July 25 % cloud
Hottest on record October 41 °C
Coldest on record June 7.4 °C

What to expectRondonópolis through the year

Rondonópolis has a clear annual cycle: average daily highs run from 31 °C in July to 34 °C in September, a swing of 4.1 °C in mean temperature across the year.

Counted across a normal year, 358 days a year reach 25 °C, 267 of them reach 30 °C. The warmest reading in the 1991–2020 record is 41 °C, in October.

Rain is strongly seasonal. January averages 266 mm against 6 mm in July — 42 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	30.6 °C	266 mm	81 %
February	30.6 °C	219 mm	79 %
March	30.7 °C	175 mm	74 %
April	30.8 °C	68 mm	55 %
May	30.1 °C	24 mm	46 %
June	30.2 °C	10 mm	33 %
July	30.6 °C	6 mm	25 %
August	33.0 °C	7 mm	27 %
September	34.3 °C	42 mm	41 %
October	33.2 °C	110 mm	64 %
November	31.4 °C	175 mm	74 %
December	30.8 °C	247 mm	81 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	30.6 °C	23.2 °C	26.3 °C	36.0 °C	19.2 °C	31	20
February	30.6 °C	23.1 °C	26.3 °C	35.4 °C	19.8 °C	28	19
March	30.7 °C	22.9 °C	26.3 °C	34.6 °C	18.2 °C	31	21
April	30.8 °C	22.1 °C	26.1 °C	35.2 °C	14.0 °C	30	21
May	30.1 °C	20.0 °C	24.7 °C	34.9 °C	10.7 °C	30	19
June	30.2 °C	18.6 °C	24.0 °C	34.3 °C	7.4 °C	29	21
July	30.6 °C	18.0 °C	23.9 °C	34.6 °C	10.0 °C	29	22
August	33.0 °C	19.7 °C	26.1 °C	38.3 °C	11.1 °C	30	27
September	34.3 °C	22.3 °C	27.9 °C	40.9 °C	13.7 °C	30	27
October	33.2 °C	23.5 °C	27.8 °C	41.4 °C	16.7 °C	31	27
November	31.4 °C	23.2 °C	26.8 °C	39.5 °C	16.0 °C	30	23
December	30.8 °C	23.2 °C	26.5 °C	37.2 °C	17.3 °C	31	21

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	266 mm	24	13 h/day	81 %	82 %	10 km/h
February	219 mm	22	13 h/day	79 %	83 %	9.5 km/h
March	175 mm	22	12 h/day	74 %	82 %	9.3 km/h
April	68 mm	11	12 h/day	55 %	77 %	9.6 km/h
May	24 mm	4	11 h/day	46 %	70 %	10 km/h
June	10 mm	1	11 h/day	33 %	64 %	11 km/h
July	6 mm	1	11 h/day	25 %	57 %	12 km/h
August	7 mm	1	12 h/day	27 %	49 %	12 km/h
September	42 mm	6	12 h/day	41 %	54 %	12 km/h
October	110 mm	16	12 h/day	64 %	69 %	11 km/h
November	175 mm	21	13 h/day	74 %	77 %	11 km/h
December	247 mm	24	13 h/day	81 %	81 %	10 km/h

How Rondonópolis 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
Rondonópolis	34 °C	18 °C	1,348 mm	358
Cuiabá · Brazil	34 °C	19 °C	1,381 mm	353
Várzea Grande · Brazil	34 °C	18 °C	1,348 mm	353
Rio Verde · Brazil	31 °C	16 °C	1,394 mm	337
Campo Grande · Brazil	30 °C	16 °C	1,391 mm	313

Where Rondonópolis ranks

Ranking	Position	Value
The warmest places in South America in November	19th of 50	31 °C
The warmest places in South America in October	24th of 50	33 °C
The warmest places in South America in September	24th of 50	34 °C
The warmest places in South America year-round	28th of 50	31 °C
The warmest places in South America in August	29th of 50	33 °C
The warmest places in South America in December	30th of 50	31 °C

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

QuestionsCommon questions about Rondonópolis’s climate

When is the best time to visit Rondonópolis?

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 Rondonópolis get?

In September, the warmest month, daily highs average 34 °C. About 267 days a year pass 30 °C. The highest value in the 1991–2020 record is 41 °C.

How cold does it get in winter?

Nights average 18 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Rondonópolis?

January, averaging 266 mm over 24 days with rain. The driest month is July with 6 mm. The year as a whole averages 1,348 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 Rondonópolis 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: -16.471°, -54.636° (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.