Antofagasta Weather

The town of Antofagasta has a cold desert climate with abundant sunshine and strong maritime influence.

The marked aridity and water scarcity are regulated by the Humboldt Current, addition to the high humidity and morning fog known as “Camanchaca”. Furthermore, the Pacific anticyclone generates winds from the south and southwest.

The average annual temperature is 16.8 °C (62.2 °F). The average daily low temperature in the warmest month, January, is 17.5 °C (63.5 °F) while the average daily high temperature is 23.2 °C (73.8 °F). The coldest month, July, sees an average low temperature of 11.8 °C (53.2 °F) and an average high temperature of 16.5 °C (61.7 °F). The highest temperature recorded is 30.0 °C (86.0 °F) in January 1998 and the lowest recorded is 3.0 °C (37.4 °F) in September 1978.

The Atacama Desert coast is subject to a climate of extreme aridity, and therefore generates a low average annual rainfall of 3.4 mm (0.13 in) (1970–2000), and the Town of Antofagasta itself receives an annual average of less than 0.1 mm (0.00 in) of rainfall per year, earning it the record as the world’s driest town. However, the sporadic occurrence of heavy rainfall, together with the geomorphologic situation of the city, make it susceptible to be affected by mud flows and landslides. Between 1916 and 1999, the city was affected by floods or landslides on seven occasions: 1925, 1930, twice in 1940, 1982, 1987 and 1991, of which the most important episodes in 1940 and 1991.

Average Temperature
Jan
73 °F
23 °C
Feb
75 °F
24 °C
Mar
73 °F
23 °C
Apr
72 °F
22 °C
May
68 °F
20 °C
Jun
65 °F
19 °C
Jul
61 °F
16 °C
Aug
63 °F
17 °C
Sep
63 °F
17 °C
Oct
64 °F
18 °C
Nov
68 °F
20 °C
Dec
70 °F
21 °C
Humidity
Jan
78%
Feb
79%
Mar
81%
Apr
81%
May
78%
Jun
78%
Jul
79%
Aug
77%
Sep
70%
Oct
73%
Nov
75%
Dec
74%
Rain
Jan
1mm
Feb
1mm
Mar
1mm
Apr
2mm
May
2mm
Jun
56mm
Jul
2mm
Aug
1mm
Sep
1mm
Oct
2mm
Nov
1mm
Dec
1mm
Clouds
Jan
54%
Feb
54%
Mar
13%
Apr
11%
May
9%
Jun
36%
Jul
52%
Aug
29%
Sep
42%
Oct
35%
Nov
38%
Dec
39%
Air quality US AQI
Jan
24
Feb
27
Mar
37
Apr
39
May
50
Jun
56
Jul
56
Aug
52
Sep
40
Oct
34
Nov
31
Dec
31
Sun
Jan
9UVI
Feb
11UVI
Mar
11UVI
Apr
9UVI
May
6UVI
Jun
5UVI
Jul
5UVI
Aug
6UVI
Sep
8UVI
Oct
10UVI
Nov
12UVI
Dec
12UVI