Atacama Desert

Antofagasta Region Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Antofagasta Region, Chile in September.

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San Pedro de Atacama Antofagasta Mejillones Atacama Desert

Planning a trip to Antofagasta Region, Chile this September? Here's what you need to know about the weather:

What to Expect in Antofagasta Region in September

Antofagasta Region, Chile is a region in Chile. The weather in Antofagasta Region in September can be quite varied, with temperatures that range from cold to warm and precipitation levels ranging from almost none to heavy.

Temperatures

During the day temperatures vary from cold in Diego Ramírez Islands at 7°C (45°F) to warm in Atacama Desert at 23°C (73°F). At night it cools down to 5°C (41°F) in Atacama Desert and 3°C (37°F) in Diego Ramírez Islands.

For a closer look at conditions across Antofagasta Region, Chile, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From almost no rainfall in Calama with an average of 0.9 mm (0.04 in) to heavy rainfall in Puerto Aysén with 199 mm (7.8 in).

Explore Antofagasta Region by month

Pick a month to see the average temperature, rainfall and sunshine in Antofagasta Region — and find the best time to visit. (based on San Pedro de Atacama)

January24°C (75°F) February23°C (73°F) March23°C (73°F) April22°C (72°F) May19°C (66°F) June17°C (63°F) This monthJuly17°C (63°F) August19°C (66°F) September21°C (70°F) October23°C (73°F) November24°C (75°F) December25°C (77°F)
Best Time to Visit Antofagasta Region →

Best Places to Visit in Antofagasta Region in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Antofagasta Region.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Antofagasta Region

What is the weather like in September for some of the most popular destinations in Antofagasta Region, Chile?

Temperature range in Antofagasta Region (September)

Precipitation variation in Antofagasta Region (September)

San Pedro de Atacama

In September San Pedro de Atacama generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 4°C (39°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
19°C (66°F)
21°C (70°F)
23°C (73°F)
Min temperature
2°C (36°F)
4°C (39°F)
6°C (43°F)
Monthly rainfall
1 mm (0.04 in)
1 mm (0.04 in)
0 mm (0 in)
Monthly rainy days
a single day
a single day
3 days
Weather conditions
perfect
perfect
perfect
Climate in San Pedro de Atacama →

Antofagasta

In September Antofagasta generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 12°C (54°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
20°C (68°F)
20°C (68°F)
21°C (70°F)
Min temperature
12°C (54°F)
12°C (54°F)
13°C (55°F)
Monthly sun hours
211 hours
222 hours
252 hours
Monthly rainfall
5.2 mm (0.2 in)
3.5 mm (0.1 in)
2.9 mm (0.1 in)
Monthly rainy days
0 days
0 days
0 days
Weather conditions
perfect
perfect
perfect
Climate in Antofagasta →

Mejillones

In September Mejillones generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 13°C (55°F) and low monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
19°C (66°F)
20°C (68°F)
21°C (70°F)
Min temperature
13°C (55°F)
13°C (55°F)
14°C (57°F)
Monthly sun hours
211 hours
222 hours
252 hours
Monthly rainfall
7.5 mm (0.3 in)
5.5 mm (0.2 in)
4.6 mm (0.2 in)
Monthly rainy days
0 days
0 days
0 days
Weather conditions
perfect
perfect
perfect
Climate in Mejillones →

Atacama Desert

In September Atacama Desert generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 5°C (41°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
22°C (72°F)
23°C (73°F)
24°C (75°F)
Min temperature
3°C (37°F)
5°C (41°F)
7°C (45°F)
Monthly rainfall
2.1 mm (0.1 in)
1.7 mm (0.1 in)
0.3 mm (0.01 in)
Monthly rainy days
a single day
a single day
2 days
Weather conditions
perfect
perfect
perfect
Climate in Atacama Desert →

Calama

In September Calama generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 5°C (41°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
21°C (70°F)
22°C (72°F)
24°C (75°F)
Min temperature
4°C (39°F)
5°C (41°F)
6°C (43°F)
Monthly rainfall
2.6 mm (0.1 in)
0.9 mm (0.04 in)
0.2 mm (0.01 in)
Monthly rainy days
a single day
a single day
2 days
Weather conditions
perfect
perfect
perfect
Climate in Calama →

Is your destination not in the list? Have a look at all destinations in Antofagasta Region, in Chile.

Popular cities in September

Day & night temperatures, rainfall and average weather in Antofagasta Region in September.

City Weather Day temp Night temp Rainfall
San Pedro de Atacama 21°C (70°F) 4°C (39°F) 1 mm (0.04 in)
Antofagasta 20°C (68°F) 12°C (54°F) 3.5 mm (0.1 in)
Mejillones 20°C (68°F) 13°C (55°F) 5.5 mm (0.2 in)
Atacama Desert 23°C (73°F) 5°C (41°F) 1.7 mm (0.1 in)
Calama 22°C (72°F) 5°C (41°F) 0.9 mm (0.04 in)
Toconao 20°C (68°F) 4°C (39°F) 4.3 mm (0.2 in)

Antofagasta Region weather in September: frequently asked questions

What is the weather like in Antofagasta Region, Chile in September?

Antofagasta Region, Chile typically experiences perfect weather in September, part of the season. Daytime highs in San Pedro de Atacama average around 21°C (70°F), and temperatures drop to about 4°C (39°F) at night.

What is the average temperature in Antofagasta Region, Chile in September?

San Pedro de Atacama averages a daytime maximum of 21°C (70°F) in September, with overnight lows close to 4°C (39°F).

Does Antofagasta Region, Chile get a lot of rain in September?

Rain is generally moderate to light in Antofagasta Region, Chile during September, with San Pedro de Atacama averaging close to 1 mm (0.04 in).

Is September a Good Time to Visit Antofagasta Region, Chile?

We believe that September is one of the best times to visit Antofagasta Region, Chile with overall perfect weather in San Pedro de Atacama. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, the best visiting conditions can be found in January, February, March, April, May, August, September, October, November and December offering mostly perfect weather in San Pedro de Atacama.

Interested in more climate information?

We have much more information about the climate in Antofagasta Region.

Weather and climate has detailed information for every country in the world. Are you going to Chile? Get detailed historical weather averages for many cities in Chile.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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