Monthly climate guide
Bariloche weather in September
Expect cool weather in Bariloche in September: afternoons reach about 9°C (47°F), while nights drop to around -1°C (29°F). Around 62 mm of rain falls over the month (some rain), and skies are often cloudy. Daytime highs are 4°C warmer than August and 3°C cooler than October.
What stands out in September
- Nights often drop below freezing (average low -1°C), so expect frost and icy mornings.
- September brings early spring to Bariloche — the seasons are reversed south of the equator.
- Just 370 km apart, but Bariloche runs about 9°C cooler than Neuquén this month.
Avg high
9°C
47°F
Avg low
-1°C
29°F
Rainfall
62 mm
some rain
Humidity
82%
relative
Sky
63%
cloud · often cloudy
Bariloche weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 21°C / 70°F | 6°C / 43°F | 28 mm | 62% | 38% |
| February | 21°C / 70°F | 6°C / 43°F | 27 mm | 60% | 40% |
| March | 18°C / 64°F | 4°C / 40°F | 30 mm | 65% | 44% |
| April | 13°C / 55°F | 2°C / 36°F | 54 mm | 77% | 55% |
| May | 8°C / 46°F | 0°C / 32°F | 95 mm | 86% | 68% |
| June | 4°C / 39°F | -2°C / 28°F | 145 mm | 90% | 67% |
| July | 3°C / 37°F | -4°C / 25°F | 125 mm | 92% | 67% |
| August | 5°C / 41°F | -2°C / 28°F | 121 mm | 88% | 68% |
| September | 9°C / 47°F | -1°C / 29°F | 62 mm | 82% | 63% |
| October | 12°C / 53°F | 0°C / 32°F | 39 mm | 77% | 61% |
| November | 15°C / 59°F | 3°C / 37°F | 25 mm | 72% | 54% |
| December | 18°C / 64°F | 4°C / 40°F | 26 mm | 69% | 47% |
What to pack for September
- A proper insulated winter coat
- A hat, scarf and gloves
- Thermal base layers and warm, grippy boots for icy mornings
- A small travel umbrella, just in case
Is September a good time to visit Bariloche?
Compare the months in the chart above to find your ideal window.
Best time to visit Bariloche →Other Argentina cities in September
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Bariloche weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/argentina/bariloche/september
<a href="https://weathercompare.eu/weather/argentina/bariloche/september">Bariloche weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/argentina/bariloche" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Bariloche weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/argentina/bariloche/september">Bariloche weather in September</a> – WeatherCompare</p>
Bariloche in September: quick answers
Is September a good time to visit Bariloche?
September is cool in Bariloche, with highs around 9°C. Better for museums and city walks than the beach, and usually quieter.
How warm is Bariloche in September?
Average highs are about 9°C (47°F) and average lows about -1°C (29°F), based on 10 years of daily data.
Does it rain a lot in Bariloche in September?
Bariloche typically gets around 62 mm of rain in September — some rain.
Figures are long-term averages for the area around Bariloche (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.