Puente Alto climate

Name: Puente Alto
Address: CL

Puente Alto is warmest in January, with average highs of 28 °C, and coldest in July, when nights average 1.4 °C. June is the wettest month (130 mm) and January the driest (14 mm). Figures are 1991–2020 climate normals.

Across a full year Puente Alto averages 680 mm of rain, 112 days above 25 °C and 31 days below freezing.

Chile · population 568,106 · 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 1.4 °C
Driest month January 14 mm
Wettest month June 130 mm
Least cloud February 13 % cloud
Hottest on record January 35 °C
Coldest on record July -13 °C

What to expectPuente Alto through the year

Puente Alto 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, 112 days a year reach 25 °C, 9 of them reach 30 °C, 31 nights drop below freezing. The warmest reading in the 1991–2020 record is 35 °C, in January.

Rain is strongly seasonal. June averages 130 mm against 14 mm in January — 9.5 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	27.7 °C	14 mm	14 %
February	27.1 °C	14 mm	13 %
March	25.8 °C	15 mm	15 %
April	21.8 °C	39 mm	31 %
May	18.0 °C	79 mm	51 %
June	14.4 °C	130 mm	56 %
July	13.5 °C	99 mm	52 %
August	15.0 °C	90 mm	49 %
September	17.2 °C	73 mm	48 %
October	19.8 °C	60 mm	44 %
November	23.1 °C	42 mm	27 %
December	26.0 °C	24 mm	18 %

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	27.7 °C	15.8 °C	21.4 °C	35.3 °C	6.6 °C	28	4	0
February	27.1 °C	15.4 °C	20.9 °C	32.9 °C	5.4 °C	24	2	0
March	25.8 °C	13.7 °C	19.4 °C	33.4 °C	3.8 °C	20	1	0
April	21.8 °C	9.2 °C	15.4 °C	32.3 °C	-2.6 °C	6	0	0
May	18.0 °C	5.5 °C	11.3 °C	28.2 °C	-7.8 °C	1	0	1
June	14.4 °C	2.4 °C	7.7 °C	24.1 °C	-10.3 °C	0	0	7
July	13.5 °C	1.4 °C	6.7 °C	24.7 °C	-13.2 °C	0	0	11
August	15.0 °C	2.5 °C	8.2 °C	26.7 °C	-13.0 °C	0	0	8
September	17.2 °C	4.4 °C	10.7 °C	27.1 °C	-7.2 °C	1	0	3
October	19.8 °C	6.8 °C	13.6 °C	28.1 °C	-3.3 °C	2	0	0
November	23.1 °C	9.9 °C	16.8 °C	32.4 °C	-0.4 °C	10	0	0
December	26.0 °C	13.3 °C	19.6 °C	34.1 °C	3.2 °C	21	1	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	14 mm	3	14 h/day	14 %	53 %	11 km/h
February	14 mm	3	13 h/day	13 %	54 %	10 km/h
March	15 mm	2	12 h/day	15 %	54 %	9.3 km/h
April	39 mm	4	11 h/day	31 %	57 %	7.8 km/h
May	79 mm	7	10 h/day	51 %	62 %	6.9 km/h
June	130 mm	8	9.9 h/day	56 %	66 %	7.2 km/h
July	99 mm	8	10 h/day	52 %	66 %	7.2 km/h
August	90 mm	8	11 h/day	49 %	67 %	7.3 km/h
September	73 mm	8	12 h/day	48 %	68 %	7.6 km/h
October	60 mm	10	13 h/day	44 %	66 %	8.6 km/h
November	42 mm	9	14 h/day	27 %	59 %	9.6 km/h
December	24 mm	6	14 h/day	18 %	54 %	11 km/h

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

Where Puente Alto ranks

Ranking	Position	Value
Places with the best weather in South America in April	4th of 50	96/100
Places with the best weather in South America in March	4th of 50	94/100
The coolest places in South America in August	13th of 50	15 °C
Places with the best weather in South America in December	15th of 50	93/100
The coolest places in South America in July	15th of 50	14 °C
Places with the best weather in South America in February	16th of 50	91/100

Planning a trip? See the best time to visit Puente Alto.

QuestionsCommon questions about Puente Alto’s climate

When is the best time to visit Puente Alto?

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 Puente Alto get?

In January, the warmest month, daily highs average 28 °C. About 9 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 1.4 °C in July, the coldest month. A normal year has 31 nights below freezing.

Which month is wettest in Puente Alto?

June, averaging 130 mm over 8 days with rain. The driest month is January with 14 mm. The year as a whole averages 680 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 Puente Alto 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: -33.612°, -70.576° (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.