How extreme does Antofagasta's weather get?

The hottest, coldest, wettest and snowiest days Antofagasta has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 34 years of daily weather observations (1991–present), from the Cerro Moreno Intl / Andres Sabella Intl station 24 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Antofagasta has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

89°F Jan 18, 1998

That is about 14°F hotter than a normal January afternoon in Antofagasta (typical high near 75°F).

The three most extreme on record

1 89°F Jan 18, 1998

2 87°F Mar 4, 1997

3 87°F Jan 22, 2017

❄️ Coldest night

33°F Oct 25, 1998

About 24°F colder than a normal October night in Antofagasta (typical low near 57°F).

The three most extreme on record

1 33°F Oct 25, 1998

2 41°F Jul 11, 1992

3 43°F Jul 18, 2010

🌧️ Most rain in one day

6.73 in May 7, 2001

More rain in a single day than Antofagasta usually gets in the whole month of May (typical May total about 0.4 in).

The three most extreme on record

1 6.73 in May 7, 2001

2 6.42 in Nov 15, 1995

3 5.12 in May 21, 1995

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

normal range of daily temperatureshottest ever recordedcoldest ever recorded

Antofagasta's record heat sits well above even a hot day for the season — January's 89°F is about 14°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Antofagasta's warmest days reach the mid-70s°F and its coldest nights drop to the low 50s°F. But across the record it has gone as high as 89°F and as low as 33°F. A single day has delivered over 7 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Cerro Moreno Intl / Andres Sabella Intl, a weather station, about 24 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →

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