Caxias do Sul climate

Name: Caxias do Sul
Address: BR

Caxias do Sul is warmest in January, with average highs of 25 °C, and coldest in July, when nights average 7.3 °C. October is the wettest month (213 mm) and June the driest (138 mm). Figures are 1991–2020 climate normals.

Across a full year Caxias do Sul averages 2,002 mm of rain, 78 days above 25 °C and 5 days below freezing.

Brazil · population 479,599 · 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 January 25 °C
Coldest month July 7.3 °C
Driest month June 138 mm
Wettest month October 213 mm
Least cloud August 54 % cloud
Hottest on record December 33 °C
Coldest on record June -5.0 °C

What to expectCaxias do Sul through the year

Caxias do Sul has a clear annual cycle: average daily highs run from 16 °C in July to 25 °C in January, a swing of 9.4 °C in mean temperature across the year.

Counted across a normal year, 78 days a year reach 25 °C, 4 of them reach 30 °C, 5 nights drop below freezing. The warmest reading in the 1991–2020 record is 33 °C, in December.

Rain is spread fairly evenly through the year, from 138 mm in June to 213 mm in October. There is no dry season to aim for.

Month by month

Month	Avg high	Rainfall	Cloud
January	25.2 °C	202 mm	59 %
February	24.8 °C	182 mm	59 %
March	23.6 °C	156 mm	56 %
April	21.2 °C	139 mm	56 %
May	17.7 °C	139 mm	60 %
June	16.4 °C	138 mm	61 %
July	16.0 °C	174 mm	56 %
August	18.2 °C	139 mm	54 %
September	19.3 °C	171 mm	60 %
October	21.1 °C	213 mm	66 %
November	22.7 °C	161 mm	56 %
December	24.7 °C	188 mm	57 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	25.2 °C	16.6 °C	20.4 °C	32.1 °C	6.9 °C	17	1	0
February	24.8 °C	16.5 °C	20.1 °C	33.0 °C	6.5 °C	13	1	0
March	23.6 °C	15.4 °C	19.0 °C	32.0 °C	4.4 °C	10	0	0
April	21.2 °C	12.9 °C	16.6 °C	28.7 °C	0.0 °C	5	0	0
May	17.7 °C	9.9 °C	13.3 °C	26.2 °C	-3.3 °C	0	0	0
June	16.4 °C	8.2 °C	11.7 °C	24.9 °C	-5.0 °C	0	0	1
July	16.0 °C	7.3 °C	11.1 °C	25.0 °C	-4.8 °C	0	0	2
August	18.2 °C	8.6 °C	12.7 °C	28.5 °C	-4.1 °C	2	0	1
September	19.3 °C	9.9 °C	14.0 °C	30.7 °C	-3.8 °C	4	0	0
October	21.1 °C	12.2 °C	16.2 °C	31.2 °C	2.5 °C	5	0	0
November	22.7 °C	13.3 °C	17.6 °C	31.2 °C	2.9 °C	8	0	0
December	24.7 °C	15.5 °C	19.6 °C	33.4 °C	5.0 °C	15	1	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	202 mm	18	14 h/day	59 %	82 %	13 km/h
February	182 mm	17	13 h/day	59 %	84 %	13 km/h
March	156 mm	15	12 h/day	56 %	84 %	13 km/h
April	139 mm	12	11 h/day	56 %	84 %	13 km/h
May	139 mm	11	11 h/day	60 %	85 %	13 km/h
June	138 mm	11	10 h/day	61 %	85 %	13 km/h
July	174 mm	11	10 h/day	56 %	84 %	14 km/h
August	139 mm	11	11 h/day	54 %	81 %	14 km/h
September	171 mm	13	12 h/day	60 %	81 %	14 km/h
October	213 mm	15	13 h/day	66 %	82 %	14 km/h
November	161 mm	14	14 h/day	56 %	80 %	14 km/h
December	188 mm	16	14 h/day	57 %	80 %	14 km/h

How Caxias do Sul 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
Caxias do Sul	25 °C	7.3 °C	2,002 mm	78
Novo Hamburgo · Brazil	29 °C	9.4 °C	1,732 mm	165
Porto Alegre · Brazil	29 °C	10 °C	1,542 mm	170
Viamão · Brazil	28 °C	10 °C	1,553 mm	150

Where Caxias do Sul ranks

Ranking	Position	Value
The coolest places in South America in May	30th of 50	18 °C
The coolest places in South America in June	35th of 50	16 °C
The coolest places in South America in July	38th of 50	16 °C
The coolest places in South America in September	40th of 50	19 °C
The coolest places in South America year-round	40th of 50	21 °C
The coolest places in South America in August	41st of 50	18 °C

Planning a trip? See the best time to visit Caxias do Sul.

QuestionsCommon questions about Caxias do Sul’s climate

When is the best time to visit Caxias do Sul?

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

How hot does Caxias do Sul get?

In January, the warmest month, daily highs average 25 °C. About 4 days a year pass 30 °C. The highest value in the 1991–2020 record is 33 °C.

How cold does it get in winter?

Nights average 7.3 °C in July, the coldest month. A normal year has 5 nights below freezing.

Which month is wettest in Caxias do Sul?

October, averaging 213 mm over 15 days with rain. The driest month is June with 138 mm. The year as a whole averages 2,002 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 Caxias do Sul 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: -29.168°, -51.179° (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.