Santiago climate

Name: Santiago
Address: CL

Santiago is warmest in January, with average highs of 28 °C, and coldest in July, when nights average 2.7 °C. June is the wettest month (105 mm) and January the driest (2.7 mm). Figures are 1991–2020 climate normals.

Across a full year Santiago averages 488 mm of rain, 123 days above 25 °C and 19 days below freezing.

Chile · population 4,837,295 · 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 2.7 °C
Driest month January 3 mm
Wettest month June 105 mm
Least cloud February 11 % cloud
Hottest on record January 37 °C
Coldest on record August -12 °C

What to expectSantiago through the year

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

Counted across a normal year, 123 days a year reach 25 °C, 14 of them reach 30 °C, 19 nights drop below freezing. The warmest reading in the 1991–2020 record is 37 °C, in January.

Rain is strongly seasonal. June averages 105 mm against 3 mm in January — 39 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.2 °C	3 mm	12 %
February	27.7 °C	5 mm	11 %
March	26.3 °C	9 mm	15 %
April	22.3 °C	28 mm	32 %
May	18.5 °C	60 mm	53 %
June	14.9 °C	105 mm	58 %
July	14.0 °C	83 mm	55 %
August	15.5 °C	79 mm	52 %
September	17.7 °C	55 mm	51 %
October	20.4 °C	38 mm	45 %
November	23.7 °C	16 mm	26 %
December	26.5 °C	7 mm	16 %

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	28.2 °C	16.5 °C	21.9 °C	37.0 °C	7.3 °C	29	5	0
February	27.7 °C	16.2 °C	21.4 °C	34.4 °C	6.8 °C	25	4	0
March	26.3 °C	14.7 °C	19.9 °C	34.3 °C	5.3 °C	22	2	0
April	22.3 °C	10.4 °C	16.0 °C	32.6 °C	-0.9 °C	7	0	0
May	18.5 °C	6.7 °C	12.1 °C	28.3 °C	-10.1 °C	1	0	1
June	14.9 °C	3.8 °C	8.7 °C	23.6 °C	-8.6 °C	0	0	4
July	14.0 °C	2.7 °C	7.8 °C	25.2 °C	-11.6 °C	0	0	7
August	15.5 °C	3.8 °C	9.1 °C	27.2 °C	-12.5 °C	0	0	5
September	17.7 °C	5.6 °C	11.5 °C	27.7 °C	-4.8 °C	1	0	2
October	20.4 °C	8.0 °C	14.3 °C	30.5 °C	-2.6 °C	3	0	0
November	23.7 °C	10.9 °C	17.4 °C	33.7 °C	1.2 °C	11	1	0
December	26.5 °C	14.1 °C	20.1 °C	35.5 °C	4.3 °C	23	3	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	3 mm	1	14 h/day	12 %	53 %	13 km/h
February	5 mm	1	13 h/day	11 %	55 %	13 km/h
March	9 mm	1	12 h/day	15 %	55 %	12 km/h
April	28 mm	3	11 h/day	32 %	58 %	9.9 km/h
May	60 mm	6	10 h/day	53 %	62 %	8.4 km/h
June	105 mm	7	9.9 h/day	58 %	64 %	7.9 km/h
July	83 mm	7	10 h/day	55 %	64 %	8.0 km/h
August	79 mm	7	11 h/day	52 %	65 %	8.6 km/h
September	55 mm	7	12 h/day	51 %	68 %	9.7 km/h
October	38 mm	6	13 h/day	45 %	66 %	11 km/h
November	16 mm	2	14 h/day	26 %	59 %	12 km/h
December	7 mm	1	14 h/day	16 %	55 %	13 km/h

How Santiago 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
Santiago	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
Maipú · Chile	29 °C	3.2 °C	497 mm	140
Puente Alto · Chile	28 °C	1.4 °C	680 mm	112
Rancagua · Chile	28 °C	2.2 °C	738 mm	117
Viña del Mar · Chile	24 °C	7.6 °C	344 mm	18

Where Santiago ranks

Ranking	Position	Value
Places with the best weather in South America in April	2ndof 50	97/100
Places with the best weather in South America in November	5thof 50	96/100
Places with the best weather in the world in April	6thof 50	97/100
Places with the best weather in South America in March	8thof 50	93/100
The driest places in South America in January	9thof 50	2.7 mm
The driest places in South America in March	15thof 50	8.6 mm

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

QuestionsCommon questions about Santiago’s climate

When is the best time to visit Santiago?

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 Santiago get?

In January, the warmest month, daily highs average 28 °C. About 14 days a year pass 30 °C. The highest value in the 1991–2020 record is 37 °C.

How cold does it get in winter?

Nights average 2.7 °C in July, the coldest month. A normal year has 19 nights below freezing.

Which month is wettest in Santiago?

June, averaging 105 mm over 7 days with rain. The driest month is January with 3 mm. The year as a whole averages 488 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 Santiago 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.