Antofagasta climate — normals and trends
Antofagasta (Chile) has a cold desert climate (BWk) under the Köppen-Geiger classification. Its mean annual temperature is 16.0 °C and it receives 71 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is February (19.1 °C on average) and the coldest is August (13.9 °C). Rainfall peaks in June.
Antofagasta averages 0 frost days, 0 hot days (≥ 30 °C) and 21 rainy days per year.
No statistically significant temperature trend emerges for Antofagasta between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 25.1 °C (on 22 May 1992) and the coldest 9.3 °C (on 18 July 2010).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
AntofagastaAntofagasta
- coords
- -23.65°, -70.40°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.0°C
Average daily high
17.1°C
Average daily low
15.1°C
Annual rainfall
71mm
Sunshine / day
11.6h
Mean relative humidity
91%
Average peak wind
20.8km/h
Seasonal range
5.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
21 d/yr
Annual snowfall
0.0 cm
Average feels-like high
17.5 °C
Average feels-like low
15.2 °C
Average peak gust
26.7 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
23.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
No clear trend over this period
Over a short window, year-to-year swings outweigh the climate signal. Try 86 years.
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
25.1 °C
22 May 1992
Coldest day
9.3 °C
18 July 2010
Wettest day
50 mm
18 June 1991
Windiest day
37.3 km/h
18 June 1991
Strongest gust
56.5 km/h
18 June 1991
Hottest feels-like
26.2 °C
18 January 1983
Coldest feels-like
6.9 °C
9 August 1975
Sunniest day
13.4 h
8 January 1941
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 19.3 °C | -0.3 °C | 2 mm | 0 mm |
| Feb | 19.3 °C | -0.7 °C | 0 mm | -2 mm |
| Mar | 18.3 °C | -0.8 °C | 11 mm | +8 mm |
| Apr | 16.8 °C | -0.9 °C | 15 mm | +6 mm |
| May | 15.9 °C | -0.8 °C | 16 mm | +6 mm |
| Jun | 15.7 °C | -0.2 °C | 10 mm | -1 mm |
| Jul | 15.0 °C | -0.4 °C | 27 mm | +16 mm |
| Aug | 15.2 °C | +0.1 °C | 10 mm | +2 mm |
| Sep | 15.4 °C | +0.2 °C | 5 mm | -1 mm |
| Oct | 15.9 °C | +0.3 °C | 4 mm | -1 mm |
| Nov | 17.0 °C | +0.4 °C | 5 mm | +2 mm |
| Dec | 18.6 °C | +0.5 °C | 5 mm | +3 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Antofagasta?
Antofagasta has a cold desert climate (Köppen BWk). Over 1940-2025, the average annual temperature is 16.0 °C and it receives 71 mm of precipitation per year.
What is the hottest day ever recorded in Antofagasta?
The hottest day measured in Antofagasta between 1940 and 2025 was 22 May 1992, reaching 25.1 °C.
What is the coldest day in Antofagasta?
The coldest day measured in Antofagasta between 1940 and 2025 was 18 July 2010, at 9.3 °C.
Does it snow in Antofagasta?
Almost never: Antofagasta sees virtually no snow, with about 0 frost days per year.
Has the climate of Antofagasta warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Antofagasta.
What is the wettest day in Antofagasta?
The wettest day measured in Antofagasta between 1940 and 2025 was 18 June 1991, with 50 mm of rain in 24 hours.
What was the windiest day in Antofagasta?
The windiest day measured in Antofagasta between 1940 and 2025 was 18 June 1991, with winds reaching 37.3 km/h.
What is the warmest month in Antofagasta?
The warmest month in Antofagasta is February (19.1 °C on average); the coldest is August (13.9 °C).
How much does it rain in Antofagasta?
Antofagasta receives on average 71 mm of precipitation per year, spread over about 21 rainy days.
Is it sunny in Antofagasta?
Antofagasta gets on average 11.6 hours of sunshine per day, roughly 4,234 hours per year over 1940-2025.
Are there tropical nights in Antofagasta?
Yes: Antofagasta has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Antofagasta?
In Antofagasta, between 1940 and 2025, the highest apparent temperature reached 26.2 °C on 18 January 1983, and the lowest was 6.9 °C on 9 August 1975.
Compare Antofagasta with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Antofagasta