Climate averages 1991–2020
San Carlos de Bariloche weather
in September.
A cold, moderately wet month: the 9th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a cold month in San Carlos de Bariloche: daytime highs average 7.2°C and nights cool to about 0.8°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 68 mm of rain on roughly 10 days, which makes September a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 47 min on an average September day.
The nearest other city in this atlas is Puerto Montt (141 km away). In September its highs average 12.0°C, 4.7°C warmer than San Carlos de Bariloche, with 185 mm of rain.
Among the 67 cities listed in Argentina, San Carlos de Bariloche ranks 67th of 67 for the warmest September highs and joint 35th of 67 for the driest September (rainfall, lowest first). The mean September high of those 67 cities is 19.4°C; San Carlos de Bariloche is 12.2°C cooler than that mean.
From September to October, average highs rise by 3.1°C to 10.4°C, and monthly rainfall rises from 68 mm to 70 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
San Carlos de Bariloche climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.9°C9.2°C | 9.2°C | 31 | 5.2 | 14.815 h |
| February | 19.9°C9.7°C | 9.7°C | 33 | 5.0 | 13.714 h |
| March | 17.1°C8.2°C | 8.2°C | 41 | 7.0 | 12.412 h |
| April | 12.0°C5.1°C | 5.1°C | 74 | 8.7 | 11.011 h |
| May | 7.9°C2.8°C | 2.8°C | 119 | 12.9 | 9.910 h |
| June | 4.5°C0.6°C | 0.6°C | 172 | 16.0 | 9.39 h |
| July | 3.8°C-0.6°C | -0.6°C | 140 | 14.5 | 9.510 h |
| August | 4.9°C-0.1°C | -0.1°C | 131 | 14.5 | 10.510 h |
| September, selected | 7.2°C0.8°C | 0.8°C | 68 | 10.3 | 11.812 h |
| October | 10.4°C2.5°C | 2.5°C | 70 | 10.2 | 13.213 h |
| November | 13.9°C4.6°C | 4.6°C | 52 | 8.3 | 14.414 h |
| December | 17.2°C7.1°C | 7.1°C | 47 | 6.8 | 15.115 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Puerto Montt in SeptemberChile · 141 kmHigh 12.0°C · Low 5.5°C · 185 mm rain
- Osorno in SeptemberChile · 166 kmHigh 12.9°C · Low 4.5°C · 129 mm rain
- Valdivia in SeptemberChile · 221 kmHigh 13.2°C · Low 6.0°C · 153 mm rain
- Padre Las Casas in SeptemberChile · 287 kmHigh 14.0°C · Low 4.4°C · 113 mm rain
- Temuco in SeptemberChile · 290 kmHigh 14.3°C · Low 4.7°C · 113 mm rain
- Neuquén in SeptemberArgentina · 369 kmHigh 18.3°C · Low 6.5°C · 19 mm rain
- Cipolletti in SeptemberArgentina · 374 kmHigh 18.5°C · Low 6.7°C · 19 mm rain
- General Roca in SeptemberArgentina · 394 kmHigh 18.7°C · Low 7.0°C · 21 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for San Carlos de Bariloche) is explained once on the San Carlos de Bariloche year overview and on the Sources, method and limits page.