Río Negro Weather in September

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

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

What to Expect in Río Negro in September

Río Negro, Argentina is a region in Argentina. Río Negro, Argentina offers a broad spectrum of weather patterns. In September, one might encounter temperatures that range from cold to pleasant, and precipitation levels ranging from low to high.

Temperatures

The average maximum daytime temperatures vary from cold in Villa Mascardi at 7°C (45°F) to pleasant in Río Colorado at 20°C (68°F). Nighttime temperatures generally drop to 6°C (43°F) in Río Colorado and -2°C (28°F) in Villa Mascardi.

For specific regional insights in Río Negro, Argentina, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From low rainfall in Cipolletti with an average of 21 mm (0.8 in) to high rainfall in Villa Mascardi with 125 mm (4.9 in).

Explore Río Negro by month

Pick a month to see the average temperature, rainfall and sunshine in Río Negro — and find the best time to visit. (based on El Bolsón)

Best Places to Visit in Río Negro in September

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

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 Río Negro

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

Temperature range in Río Negro (September)

Precipitation variation in Río Negro (September)

El Bolsón

In September El Bolsón generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around -2°C (28°F) and high monthly snow/rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
6°C (43°F)
9°C (48°F)
12°C (54°F)
Min temperature
-2°C (28°F)
-2°C (28°F)
1°C (34°F)
Monthly snow/rainfall
198 mm (7.8 in)
117 mm (4.6 in)
125 mm (4.9 in)
Monthly rainy days
12 days
9 days
7 days
Weather conditions

Las Grutas

In September Las Grutas generally has pleasant temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 7°C (45°F) and low monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
16°C (61°F)
18°C (64°F)
22°C (72°F)
Min temperature
5°C (41°F)
7°C (45°F)
10°C (50°F)
Monthly rainfall
19 mm (0.7 in)
24 mm (0.9 in)
30 mm (1.2 in)
Monthly rainy days
3 days
4 days
5 days
Weather conditions

Cipolletti

In September Cipolletti generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 6°C (43°F) and low monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
16°C (61°F)
20°C (68°F)
23°C (73°F)
Min temperature
4°C (39°F)
6°C (43°F)
9°C (48°F)
Monthly sun hours
186 hours
192 hours
260 hours
Monthly rainfall
15 mm (0.6 in)
21 mm (0.8 in)
32 mm (1.3 in)
Monthly rainy days
3 days
4 days
4 days
Weather conditions

Viedma

In September Viedma generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 8°C (46°F) and low monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
14°C (57°F)
15°C (59°F)
18°C (64°F)
Min temperature
7°C (45°F)
8°C (46°F)
10°C (50°F)
Monthly sun hours
180 hours
202 hours
250 hours
Monthly rainfall
30 mm (1.2 in)
30 mm (1.2 in)
29 mm (1.1 in)
Monthly rainy days
4 days
5 days
7 days
Weather conditions

Allen

In September Allen generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 6°C (43°F) and low monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
16°C (61°F)
20°C (68°F)
23°C (73°F)
Min temperature
4°C (39°F)
6°C (43°F)
9°C (48°F)
Monthly sun hours
186 hours
192 hours
260 hours
Monthly rainfall
14 mm (0.6 in)
22 mm (0.9 in)
33 mm (1.3 in)
Monthly rainy days
3 days
4 days
4 days
Weather conditions

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

Popular cities in September

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

City Weather Day temp Night temp Rainfall
El Bolsón 9°C (48°F) -2°C (28°F) 117 mm (4.6 in)
Las Grutas 18°C (64°F) 7°C (45°F) 24 mm (0.9 in)
Cipolletti 20°C (68°F) 6°C (43°F) 21 mm (0.8 in)
Viedma 15°C (59°F) 8°C (46°F) 30 mm (1.2 in)
Allen 20°C (68°F) 6°C (43°F) 22 mm (0.9 in)
Balneario El Condor 15°C (59°F) 8°C (46°F) 30 mm (1.2 in)

Río Negro weather in September: frequently asked questions

What is the weather like in Río Negro, Argentina in September?

Río Negro, Argentina typically experiences poor weather in September, part of the season. Daytime highs in El Bolsón average around 9°C (48°F), and temperatures drop to about -2°C (28°F) at night.

What is the average temperature in Río Negro, Argentina in September?

Average temperatures in Río Negro, Argentina during September range from a nighttime low near -2°C (28°F) to a daytime high around 9°C (48°F) in El Bolsón.

Does Río Negro, Argentina get a lot of snow/rain in September?

Yes, September tends to be a wetter month in Río Negro, Argentina. Average snow/rainfall in El Bolsón sits around 117 mm (4.6 in).

Is September a Good Time to Visit Río Negro, Argentina?

In our view, September might not be the best time to travel to Río Negro, Argentina with often poor weather in El Bolsón.

Generally speaking, the best visiting conditions can be found in January and February offering mostly perfect weather in El Bolsón. In contrast, April, May, June, July, August, September and October tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Río Negro.

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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