San Luis Province Weather in September

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

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Merlo Potrero de los Funes San Luis Cortaderas

Are you planning a trip a to San Luis Province, Argentina in September and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in San Luis Province in September

San Luis Province, Argentina is a region in Argentina. September in San Luis Province generally has temperatures that range from pleasant to warm, with moderate precipitation.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is pleasant in Cortaderas at 20°C (68°F) to warm in San Luis at 23°C (73°F). Nighttime temperatures generally drop to 9°C (48°F) in San Luis and 6°C (43°F) in Cortaderas.

For specific regional insights in San Luis Province, Argentina, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Hipólito Yrigoyen with an average of 31 mm (1.2 in) to moderate rainfall in Villa Mercedes with 40 mm (1.6 in).

Explore San Luis Province by month

Pick a month to see the average temperature, rainfall and sunshine in San Luis Province — and find the best time to visit. (based on Merlo)

January28°C (82°F) February27°C (81°F) March25°C (77°F) April22°C (72°F) May18°C (64°F) June16°C (61°F) This monthJuly15°C (59°F) August19°C (66°F) September21°C (70°F) October24°C (75°F) November26°C (79°F) December28°C (82°F)
Best Time to Visit San Luis Province →

Best Places to Visit in San Luis Province in September

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

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 San Luis Province

What is the weather like in September for some of the most popular destinations in San Luis Province, Argentina?

Temperature range in San Luis Province (September)

Precipitation variation in San Luis Province (September)

Merlo

In September Merlo generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 6°C (43°F) and moderate 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)
24°C (75°F)
Min temperature
4°C (39°F)
6°C (43°F)
10°C (50°F)
Monthly rainfall
17 mm (0.7 in)
35 mm (1.4 in)
72 mm (2.8 in)
Monthly rainy days
3 days
4 days
7 days
Weather conditions
perfect
perfect
perfect
Climate in Merlo →

Potrero de los Funes

In September Potrero de los Funes generally has pleasant temperatures with maximum daytime temperatures around 22°C (72°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
19°C (66°F)
22°C (72°F)
25°C (77°F)
Min temperature
6°C (43°F)
8°C (46°F)
11°C (52°F)
Monthly rainfall
17 mm (0.7 in)
34 mm (1.3 in)
72 mm (2.8 in)
Monthly rainy days
2 days
4 days
5 days
Weather conditions
perfect
perfect
perfect
Climate in Potrero de los Funes →

San Luis

In September San Luis generally has high temperatures with maximum daytime temperatures around 23°C (73°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
20°C (68°F)
23°C (73°F)
26°C (79°F)
Min temperature
6°C (43°F)
9°C (48°F)
12°C (54°F)
Monthly rainfall
16 mm (0.6 in)
32 mm (1.3 in)
68 mm (2.7 in)
Monthly rainy days
2 days
4 days
5 days
Weather conditions
perfect
perfect
perfect
Climate in San Luis →

Cortaderas

In September Cortaderas generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 6°C (43°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
4°C (39°F)
6°C (43°F)
9°C (48°F)
Monthly rainfall
19 mm (0.7 in)
39 mm (1.5 in)
78 mm (3.1 in)
Monthly rainy days
3 days
4 days
7 days
Weather conditions
perfect
perfect
perfect
Climate in Cortaderas →

Carpintería

In September Carpintería generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 6°C (43°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
4°C (39°F)
6°C (43°F)
9°C (48°F)
Monthly rainfall
18 mm (0.7 in)
37 mm (1.5 in)
75 mm (3 in)
Monthly rainy days
3 days
4 days
7 days
Weather conditions
perfect
perfect
perfect
Climate in Carpintería →

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

Popular cities in September

Day & night temperatures, rainfall and average weather in San Luis Province in September.

City Weather Day temp Night temp Rainfall
Merlo 21°C (70°F) 6°C (43°F) 35 mm (1.4 in)
Potrero de los Funes 22°C (72°F) 8°C (46°F) 34 mm (1.3 in)
San Luis 23°C (73°F) 9°C (48°F) 32 mm (1.3 in)
Cortaderas 20°C (68°F) 6°C (43°F) 39 mm (1.5 in)
Carpintería 20°C (68°F) 6°C (43°F) 37 mm (1.5 in)
Villa Mercedes 23°C (73°F) 8°C (46°F) 40 mm (1.6 in)

San Luis Province weather in September: frequently asked questions

What is the weather like in San Luis Province, Argentina in September?

San Luis Province, Argentina typically experiences perfect weather in September, part of the season. Daytime highs in Merlo average around 21°C (70°F), and temperatures drop to about 6°C (43°F) at night.

What is the average temperature in San Luis Province, Argentina in September?

Daytime temperatures in Merlo peak at roughly 21°C (70°F) in September, dropping to about 6°C (43°F) overnight.

Does San Luis Province, Argentina get a lot of rain in September?

Rain is generally moderate to light in San Luis Province, Argentina during September, with Merlo averaging close to 35 mm (1.4 in).

Is September a Good Time to Visit San Luis Province, Argentina?

We believe that September is one of the best times to visit San Luis Province, Argentina with overall perfect weather in Merlo.

Generally speaking, March, April, August, September and October provide perfect weather in Merlo.

Interested in more climate information?

We have much more information about the climate in San Luis Province.

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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