Rancagua climate

Name: Rancagua
Address: CL

Rancagua is warmest in January, with average highs of 28 °C, and coldest in July, when nights average 2.2 °C. June is the wettest month (163 mm) and January the driest (7.2 mm). Figures are 1991–2020 climate normals.

Across a full year Rancagua averages 738 mm of rain, 117 days above 25 °C and 24 days below freezing.

Chile · population 212,695 · 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 28 °C
Coldest month July 2.2 °C
Driest month January 7 mm
Wettest month June 163 mm
Least cloud February 13 % cloud
Hottest on record January 35 °C
Coldest on record August -15 °C

What to expectRancagua through the year

Rancagua has a clear annual cycle: average daily highs run from 14 °C in July to 28 °C in January, a swing of 15 °C in mean temperature across the year.

Counted across a normal year, 117 days a year reach 25 °C, 11 of them reach 30 °C, 24 nights drop below freezing. The warmest reading in the 1991–2020 record is 35 °C, in January.

Rain is strongly seasonal. June averages 163 mm against 7 mm in January — 23 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.0 °C	7 mm	13 %
February	27.5 °C	7 mm	13 %
March	26.0 °C	11 mm	17 %
April	21.8 °C	44 mm	35 %
May	18.3 °C	96 mm	55 %
June	15.0 °C	163 mm	59 %
July	14.4 °C	123 mm	56 %
August	15.8 °C	107 mm	54 %
September	17.7 °C	80 mm	53 %
October	20.1 °C	58 mm	47 %
November	23.4 °C	27 mm	29 %
December	26.3 °C	13 mm	19 %

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	28.0 °C	16.5 °C	22.4 °C	35.0 °C	7.0 °C	29	5	0
February	27.5 °C	15.7 °C	21.8 °C	33.3 °C	5.5 °C	25	3	0
March	26.0 °C	13.2 °C	19.9 °C	33.3 °C	4.0 °C	21	1	0
April	21.8 °C	8.8 °C	15.5 °C	31.7 °C	-1.7 °C	5	0	0
May	18.3 °C	5.8 °C	11.7 °C	28.7 °C	-4.5 °C	1	0	1
June	15.0 °C	3.3 °C	8.5 °C	24.1 °C	-9.0 °C	0	0	6
July	14.4 °C	2.2 °C	7.6 °C	24.3 °C	-8.5 °C	0	0	9
August	15.8 °C	3.2 °C	9.1 °C	26.6 °C	-14.6 °C	0	0	6
September	17.7 °C	5.0 °C	11.4 °C	27.2 °C	-7.2 °C	1	0	3
October	20.1 °C	7.0 °C	14.0 °C	28.9 °C	-4.2 °C	3	0	0
November	23.4 °C	10.0 °C	17.5 °C	32.5 °C	-0.6 °C	10	0	0
December	26.3 °C	13.6 °C	20.5 °C	33.4 °C	3.0 °C	22	2	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	7 mm	1	14 h/day	13 %	54 %	11 km/h
February	7 mm	2	13 h/day	13 %	56 %	10.0 km/h
March	11 mm	2	12 h/day	17 %	58 %	9.2 km/h
April	44 mm	4	11 h/day	35 %	64 %	7.8 km/h
May	96 mm	7	10 h/day	55 %	67 %	7.6 km/h
June	163 mm	9	9.9 h/day	59 %	70 %	7.8 km/h
July	123 mm	9	10 h/day	56 %	69 %	7.6 km/h
August	107 mm	9	11 h/day	54 %	69 %	7.8 km/h
September	80 mm	9	12 h/day	53 %	70 %	7.9 km/h
October	58 mm	8	13 h/day	47 %	69 %	8.4 km/h
November	27 mm	4	14 h/day	29 %	62 %	9.3 km/h
December	13 mm	2	14 h/day	19 %	56 %	10 km/h

How Rancagua 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
Rancagua	28 °C	2.2 °C	738 mm	117
Puente Alto · Chile	28 °C	1.4 °C	680 mm	112
Maipú · Chile	29 °C	3.2 °C	497 mm	140
Santiago · Chile	28 °C	2.7 °C	488 mm	123
Peñalolén · Chile	27 °C	1.7 °C	664 mm	101
Quilicura · Chile	29 °C	3.8 °C	612 mm	131
Viña del Mar · Chile	24 °C	7.6 °C	344 mm	18

Where Rancagua ranks

Ranking	Position	Value
Places with the best weather in South America in March	6thof 50	93/100
Places with the best weather in South America in April	8thof 50	94/100
Places with the best weather in South America in November	9thof 50	95/100
Places with the best weather in South America in December	14thof 50	93/100
The driest places in South America in January	18thof 50	7.2 mm
Places with the best weather in South America in February	20thof 50	89/100

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

QuestionsCommon questions about Rancagua’s climate

When is the best time to visit Rancagua?

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

How hot does Rancagua get?

In January, the warmest month, daily highs average 28 °C. About 11 days a year pass 30 °C. The highest value in the 1991–2020 record is 35 °C.

How cold does it get in winter?

Nights average 2.2 °C in July, the coldest month. A normal year has 24 nights below freezing.

Which month is wettest in Rancagua?

June, averaging 163 mm over 9 days with rain. The driest month is January with 7 mm. The year as a whole averages 738 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 Rancagua 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.