Argentina

Argentina Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Argentina in September.

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Buenos Aires San Carlos de Bariloche Salta Puerto Iguazú

Planning a getaway to Argentina this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Argentina in September

The weather in Argentina in September can be quite varied, with temperatures that range from very cold to very warm and precipitation levels ranging from almost none to heavy.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is very cold in Los Penitentes at -5°C (23°F) to very warm in Tartagal at 30°C (86°F). Nighttime temperatures generally drop to 15°C (59°F) in Tartagal and -14°C (7°F) in Los Penitentes.

To explore the conditions in Argentina in more detail, check the map below.

Precipitation

In September, precipitation varies across different areas. From almost no snow/rainfall in Susques with an average of 3.2 mm (0.1 in) to heavy snow/rainfall in Chilecito with 241 mm (9.5 in).

Average sunshine

Sunshine is moderately available across various locations. In Buenos Aires, you can expect around 186 hours of sunlight in September, which gives a pleasant combination of sun and shade. For those who want maximum sunshine, our weather planner can point you toward the sunniest places on Earth.

Explore Argentina by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in Argentina in September

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

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 Argentina

What is the weather like in September for some of the most popular destinations in Argentina?

Temperature range in Argentina (September)

Precipitation variation in Argentina (September)

Buenos Aires

In September Buenos Aires generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
18°C (64°F)
20°C (68°F)
23°C (73°F)
Min temperature
7°C (45°F)
9°C (48°F)
12°C (54°F)
Monthly sun hours
177 hours
186 hours
226 hours
Monthly rainfall
65 mm (2.6 in)
76 mm (3 in)
111 mm (4.4 in)
Monthly rainy days
7 days
7 days
10 days
Weather conditions
pleasant
perfect
pleasant
Climate in Buenos Aires →

San Carlos de Bariloche

In September San Carlos de Bariloche generally has low temperatures with maximum daytime temperatures around 8°C (46°F), minimum nighttime temperatures around -2°C (28°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
6°C (43°F)
8°C (46°F)
11°C (52°F)
Min temperature
-2°C (28°F)
-2°C (28°F)
0°C (32°F)
Monthly sun hours
147 hours
191 hours
241 hours
Monthly snow/rainfall
154 mm (6.1 in)
87 mm (3.4 in)
85 mm (3.3 in)
Monthly rainy days
13 days
10 days
8 days
Weather conditions
poor
poor
unpleasant
Climate in San Carlos de Bariloche →

Mar del Plata

In September Mar del Plata generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 7°C (45°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
15°C (59°F)
16°C (61°F)
18°C (64°F)
Min temperature
6°C (43°F)
7°C (45°F)
10°C (50°F)
Monthly sun hours
171 hours
177 hours
212 hours
Monthly rainfall
61 mm (2.4 in)
64 mm (2.5 in)
84 mm (3.3 in)
Monthly rainy days
8 days
7 days
10 days
Weather conditions
tolerable
tolerable
pleasant
Climate in Mar del Plata →

Mendoza

In September Mendoza generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 7°C (45°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
17°C (63°F)
20°C (68°F)
24°C (75°F)
Min temperature
4°C (39°F)
7°C (45°F)
10°C (50°F)
Monthly sun hours
217 hours
221 hours
275 hours
Monthly rainfall
30 mm (1.2 in)
38 mm (1.5 in)
58 mm (2.3 in)
Monthly rainy days
2 days
3 days
3 days
Weather conditions
pleasant
perfect
perfect
Climate in Mendoza →

Salta

In September Salta generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 8°C (46°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
20°C (68°F)
21°C (70°F)
23°C (73°F)
Min temperature
6°C (43°F)
8°C (46°F)
12°C (54°F)
Monthly sun hours
207 hours
197 hours
202 hours
Monthly rainfall
50 mm (2 in)
76 mm (3 in)
156 mm (6.1 in)
Monthly rainy days
2 days
3 days
5 days
Weather conditions
perfect
perfect
pleasant
Climate in Salta →

Is your destination not in the list? Have a look at all destinations in Argentina.

Popular cities in September

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

City Weather Day temp Night temp Rainfall
Buenos Aires 20°C (68°F) 9°C (48°F) 76 mm (3 in)
San Carlos de Bariloche 8°C (46°F) -2°C (28°F) 87 mm (3.4 in)
Salta 21°C (70°F) 8°C (46°F) 76 mm (3 in)
Puerto Iguazú 28°C (82°F) 16°C (61°F) 164 mm (6.5 in)
San Rafael 20°C (68°F) 6°C (43°F) 32 mm (1.3 in)
Ushuaia 5°C (41°F) -3°C (27°F) 65 mm (2.6 in)

Argentina weather in September: frequently asked questions

What is the weather like in Argentina in September?

Expect perfect weather across Argentina in September. The popular destination of Buenos Aires averages 20°C (68°F) by day and 9°C (48°F) at night during this month.

What is the average temperature in Argentina in September?

Buenos Aires averages a daytime maximum of 20°C (68°F) in September, with overnight lows close to 9°C (48°F).

Does Argentina get a lot of rain in September?

Not particularly. Buenos Aires averages just 76 mm (3 in) of rain in September, making it a mostly dry month for Argentina.

Is September a Good Time to Visit Argentina?

We believe that September is one of the best times to visit Argentina with overall perfect weather in Buenos Aires. It's worth noting that weather conditions might differ depending on the location you visit.

On average, the best time to visit Argentina is in March, April, May, September, November and December with generally perfect weather in Buenos Aires. The weather in January, June and July, on the other hand, tends to be tolerable.

Interested in more climate information?

We have much more information about the climate in Argentina.

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

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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