Antofagasta climate

Name: Antofagasta
Address: CL

Antofagasta is warmest in February, with average highs of 25 °C, and coldest in July, when nights average 13 °C. June is the wettest month (3.7 mm) and January the driest (0.2 mm). Figures are 1991–2020 climate normals.

Across a full year Antofagasta averages 16 mm of rain and 26 days above 25 °C.

Chile · population 401,096 · 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 25 °C
Coldest month July 13 °C
Driest month January 0 mm
Wettest month June 4 mm
Least cloud March 35 % cloud
Hottest on record July 31 °C
Coldest on record July 5.4 °C
Warmest sea January 20 °C

What to expectAntofagasta through the year

Antofagasta has a clear annual cycle: average daily highs run from 19 °C in July to 25 °C in February, a swing of 5.8 °C in mean temperature across the year.

Counted across a normal year, 26 days a year reach 25 °C, 0 of them reach 30 °C. The warmest reading in the 1991–2020 record is 31 °C, in July.

Rain is spread fairly evenly through the year, from 0 mm in January to 4 mm in June. There is no dry season to aim for.

The sea off Antofagasta is warmest in January at 20 °C and coldest in August at 15 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	24.5 °C	under 1 mm	41 %
February	24.9 °C	1 mm	36 %
March	23.9 °C	1 mm	35 %
April	22.1 °C	2 mm	45 %
May	20.9 °C	2 mm	47 %
June	19.8 °C	4 mm	48 %
July	19.3 °C	3 mm	44 %
August	19.4 °C	2 mm	40 %
September	19.9 °C	1 mm	35 %
October	20.5 °C	1 mm	37 %
November	21.4 °C	under 1 mm	38 %
December	22.9 °C	under 1 mm	38 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C
January	24.5 °C	18.3 °C	21.2 °C	28.1 °C	15.3 °C	8
February	24.9 °C	18.7 °C	21.6 °C	28.7 °C	16.0 °C	11
March	23.9 °C	17.9 °C	20.6 °C	28.7 °C	14.1 °C	4
April	22.1 °C	16.4 °C	19.0 °C	26.4 °C	13.6 °C	1
May	20.9 °C	14.9 °C	17.6 °C	28.8 °C	8.3 °C	0
June	19.8 °C	13.5 °C	16.5 °C	26.5 °C	7.7 °C	0
July	19.3 °C	12.6 °C	15.8 °C	30.9 °C	5.4 °C	0
August	19.4 °C	12.9 °C	15.9 °C	27.7 °C	6.2 °C	0
September	19.9 °C	13.3 °C	16.3 °C	27.0 °C	8.5 °C	0
October	20.5 °C	13.9 °C	16.9 °C	24.6 °C	10.6 °C	0
November	21.4 °C	14.9 °C	18.0 °C	24.6 °C	11.9 °C	0
December	22.9 °C	16.5 °C	19.5 °C	26.9 °C	13.4 °C	1

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	under 1 mm	0	13 h/day	41 %	79 %	18 km/h	20.1 °C
February	1 mm	0	13 h/day	36 %	80 %	18 km/h	20.1 °C
March	1 mm	0	12 h/day	35 %	82 %	16 km/h	19.2 °C
April	2 mm	0	12 h/day	45 %	84 %	15 km/h	18.0 °C
May	2 mm	0	11 h/day	47 %	83 %	14 km/h	17.1 °C
June	4 mm	0	11 h/day	48 %	81 %	14 km/h	16.1 °C
July	3 mm	1	11 h/day	44 %	81 %	14 km/h	15.4 °C
August	2 mm	0	11 h/day	40 %	80 %	15 km/h	15.2 °C
September	1 mm	0	12 h/day	35 %	80 %	16 km/h	15.4 °C
October	1 mm	0	13 h/day	37 %	80 %	17 km/h	16.1 °C
November	under 1 mm	0	13 h/day	38 %	80 %	17 km/h	17.5 °C
December	under 1 mm	0	14 h/day	38 %	80 %	17 km/h	18.8 °C

How Antofagasta 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
Antofagasta	25 °C	13 °C	16 mm	26
Calama · Chile	25 °C	1.6 °C	38 mm	94
Iquique · Chile	27 °C	13 °C	61 mm	141
Salta · Argentina	25 °C	6.4 °C	2,225 mm	82
San Salvador de Jujuy · Argentina	23 °C	6.6 °C	2,480 mm	36
Tarija · Bolivia	23 °C	4.6 °C	1,182 mm	78
San Miguel de Tucumán · Argentina	28 °C	7.1 °C	1,986 mm	154

Where Antofagasta ranks

Ranking	Position	Value
The driest places in South America in January	1st of 50	0.2 mm
The driest places in South America year-round	1st of 50	1.4 mm
Places with the best weather in South America year-round	2nd of 50	91/100
Places with the best weather in the world year-round	2nd of 50	91/100
The driest places in South America in December	2nd of 50	0.2 mm
The driest places in South America in March	2nd of 50	0.9 mm

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

QuestionsCommon questions about Antofagasta’s climate

When is the best time to visit Antofagasta?

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

How hot does Antofagasta get?

In February, the warmest month, daily highs average 25 °C. About 0 days a year pass 30 °C. The highest value in the 1991–2020 record is 31 °C.

How cold does it get in winter?

Nights average 13 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Antofagasta?

June, averaging 4 mm over 0 days with rain. The driest month is January with 0 mm. The year as a whole averages 16 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 Antofagasta 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: -23.651°, -70.398° (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.