San Carlos de Bariloche Weather in September
September in San Carlos de Bariloche brings low temperatures around 8°C (46°F) during the day, dropping to -2°C (28°F) at night, with quite a bit of snow/rainfall expected, averaging around 87 mm (3.4 in) for the month.
Rainfall in San Carlos de Bariloche in September
Typically, about 10 days will experience snow/rainfall, with an average of 87 mm (3.4 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in San Carlos de Bariloche in September
In September, San Carlos de Bariloche sees low temperatures, with highs of 8°C (46°F). Nights drop to around -2°C (28°F). Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. Nights are well below freezing at -2°C (28°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation.
Sunshine in San Carlos de Bariloche in September
Expect sunny days throughout the month, with an estimated 191 hours of sunshine. Despite the cool temperatures, the sunny skies make it a pleasant time to visit San Carlos de Bariloche.September in San Carlos de Bariloche has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our San Carlos de Bariloche's climate page.
San Carlos de Bariloche Temperature in September
Min Temperature
-2°C (28°F)
Max Temperature
8°C (46°F)
Chance of Rain
32%
Precipitation
87 mm (3.4 in)
Rainy days
10 days
Humidity
67%
Sunshine
191 hours
Percentage Sunshine
54%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in San Carlos de Bariloche typically rise from around 10°C (50°F) at the start of September to approximately 13°C (55°F) by the end. Nights are cold, with lows typically ranging from -1°C (30°F) to 2°C (36°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for San Carlos de Bariloche in September
Browse day-by-day weather records for San Carlos de Bariloche spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Carlos de Bariloche historical weather extremes in September
According to our 34 years of weather records for San Carlos de Bariloche, the following extremes were recorded between 1991 and 2025.
- San Carlos de Bariloche recorded its highest September temperature of 22°C (72°F) on September 24, 2021.
- San Carlos de Bariloche experienced its chilliest September day on September 13, 2000, reaching only -1°C (30°F).
- The lowest overnight temperature recorded in September was -13°C (9°F) (September 12, 2000).
Best Places in Argentina in September
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in September →
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What to Wear in San Carlos de Bariloche in September
Cold weather calls for smart layering in September. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in San Carlos de Bariloche in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our San Carlos de Bariloche's climate page.
Temperature Rainfall Sunshine Humidity
See the full San Carlos de Bariloche climate overview or explore weather in Argentina.
