Duque de Caxias climate

Name: Duque de Caxias
Address: BR

Duque de Caxias is warmest in February, with average highs of 31 °C, and coldest in July, when nights average 16 °C. January is the wettest month (256 mm) and August the driest (42 mm). Figures are 1991–2020 climate normals.

Across a full year Duque de Caxias averages 1,613 mm of rain and 271 days above 25 °C.

Brazil · population 866,347 · 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 February 31 °C
Coldest month July 16 °C
Driest month August 42 mm
Wettest month January 256 mm
Least cloud August 45 % cloud
Hottest on record November 41 °C
Coldest on record June 9.7 °C

What to expectDuque de Caxias through the year

Duque de Caxias has a clear annual cycle: average daily highs run from 25 °C in July to 31 °C in February, a swing of 6.7 °C in mean temperature across the year.

Counted across a normal year, 271 days a year reach 25 °C, 117 of them reach 30 °C. The warmest reading in the 1991–2020 record is 41 °C, in November.

Rain is strongly seasonal. January averages 256 mm against 42 mm in August — 6.0 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	30.9 °C	256 mm	72 %
February	31.4 °C	192 mm	63 %
March	29.7 °C	214 mm	65 %
April	28.1 °C	103 mm	55 %
May	25.8 °C	76 mm	53 %
June	25.3 °C	47 mm	47 %
July	25.1 °C	47 mm	45 %
August	26.1 °C	42 mm	45 %
September	27.1 °C	87 mm	57 %
October	28.1 °C	115 mm	67 %
November	28.1 °C	207 mm	74 %
December	29.9 °C	229 mm	72 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	30.9 °C	23.2 °C	26.4 °C	39.3 °C	17.7 °C	29	19
February	31.4 °C	23.3 °C	26.8 °C	38.3 °C	19.0 °C	28	19
March	29.7 °C	22.6 °C	25.6 °C	37.6 °C	17.4 °C	29	14
April	28.1 °C	21.0 °C	24.0 °C	35.4 °C	13.1 °C	25	8
May	25.8 °C	18.3 °C	21.6 °C	33.9 °C	11.8 °C	17	3
June	25.3 °C	16.9 °C	20.6 °C	32.8 °C	9.7 °C	16	2
July	25.1 °C	16.2 °C	20.1 °C	34.5 °C	9.7 °C	17	2
August	26.1 °C	16.7 °C	20.8 °C	36.1 °C	10.8 °C	19	5
September	27.1 °C	18.2 °C	22.0 °C	39.1 °C	11.9 °C	19	9
October	28.1 °C	19.8 °C	23.3 °C	39.7 °C	14.0 °C	22	11
November	28.1 °C	20.8 °C	23.9 °C	41.0 °C	14.1 °C	22	10
December	29.9 °C	22.3 °C	25.5 °C	38.2 °C	16.0 °C	28	15

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	256 mm	21	13 h/day	72 %	79 %	11 km/h
February	192 mm	17	13 h/day	63 %	78 %	11 km/h
March	214 mm	21	12 h/day	65 %	82 %	11 km/h
April	103 mm	13	12 h/day	55 %	82 %	11 km/h
May	76 mm	11	11 h/day	53 %	82 %	10 km/h
June	47 mm	7	11 h/day	47 %	81 %	9.7 km/h
July	47 mm	7	11 h/day	45 %	79 %	11 km/h
August	42 mm	7	11 h/day	45 %	77 %	12 km/h
September	87 mm	11	12 h/day	57 %	77 %	13 km/h
October	115 mm	14	13 h/day	67 %	78 %	13 km/h
November	207 mm	19	13 h/day	74 %	80 %	13 km/h
December	229 mm	20	14 h/day	72 %	80 %	12 km/h

How Duque de Caxias 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
Duque de Caxias	31 °C	16 °C	1,613 mm	271
São João de Meriti · Brazil	32 °C	16 °C	1,633 mm	279
Nova Iguaçu · Brazil	32 °C	16 °C	1,386 mm	277
Rio de Janeiro · Brazil	31 °C	17 °C	1,601 mm	265
Niterói · Brazil	31 °C	17 °C	1,550 mm	268
Barra da Tijuca · Brazil	31 °C	17 °C	1,091 mm	277
Magé · Brazil	31 °C	16 °C	1,588 mm	260

Planning a trip? See the best time to visit Duque de Caxias.

QuestionsCommon questions about Duque de Caxias’s climate

When is the best time to visit Duque de Caxias?

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

How hot does Duque de Caxias get?

In February, the warmest month, daily highs average 31 °C. About 117 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 16 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Duque de Caxias?

January, averaging 256 mm over 21 days with rain. The driest month is August with 42 mm. The year as a whole averages 1,613 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 Duque de Caxias 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: -22.786°, -43.312° (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.