Climate averages 1991–2020
Avellaneda weather
in October.
A mild, wet month: the 7th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Avellaneda: daytime highs average 20.4°C and nights cool to about 13.0°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 109 mm of rain on roughly 9 days, which makes October a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 56 min on an average October day.
The nearest other city in this atlas is Buenos Aires (5 km away). In October its highs average 20.2°C, about as warm as Avellaneda, with 119 mm of rain.
Among the 67 cities listed in Argentina, Avellaneda ranks 54th of 67 for the warmest October highs and joint 30th of 67 for the driest October (rainfall, lowest first). The mean October high of those 67 cities is 22.2°C; Avellaneda is 1.8°C cooler than that mean.
From October to November, average highs rise by 3.3°C to 23.7°C, and monthly rainfall falls from 109 mm to 94 mm.
The annual picture
October 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
Avellaneda climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.9°C20.2°C | 20.2°C | 83 | 7.1 | 14.214 h |
| February | 26.7°C19.5°C | 19.5°C | 92 | 7.8 | 13.413 h |
| March | 24.7°C17.9°C | 17.9°C | 88 | 7.2 | 12.312 h |
| April | 21.1°C14.3°C | 14.3°C | 94 | 7.9 | 11.211 h |
| May | 17.3°C11.2°C | 11.2°C | 63 | 6.0 | 10.310 h |
| June | 14.4°C8.2°C | 8.2°C | 67 | 6.4 | 9.910 h |
| July | 13.5°C7.1°C | 7.1°C | 67 | 6.8 | 10.110 h |
| August | 15.7°C8.5°C | 8.5°C | 66 | 6.4 | 10.811 h |
| September | 17.5°C10.1°C | 10.1°C | 74 | 7.1 | 11.812 h |
| October, selected | 20.4°C13.0°C | 13.0°C | 109 | 9.3 | 12.913 h |
| November | 23.7°C15.8°C | 15.8°C | 94 | 8.1 | 13.914 h |
| December | 26.7°C18.5°C | 18.5°C | 81 | 8.0 | 14.414 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
October in nearby cities
- Buenos Aires in OctoberArgentina · 5 kmHigh 20.2°C · Low 13.3°C · 119 mm rain
- Lomas de Zamora in OctoberArgentina · 11 kmHigh 20.6°C · Low 12.5°C · 109 mm rain
- Quilmes in OctoberArgentina · 12 kmHigh 20.3°C · Low 12.7°C · 109 mm rain
- Berazategui in OctoberArgentina · 18 kmHigh 20.0°C · Low 13.1°C · 109 mm rain
- Isidro Casanova in OctoberArgentina · 21 kmHigh 21.0°C · Low 12.1°C · 109 mm rain
- Laferrere in OctoberArgentina · 22 kmHigh 21.1°C · Low 11.9°C · 109 mm rain
- Ezeiza in OctoberArgentina · 26 kmHigh 20.9°C · Low 11.8°C · 109 mm rain
- Don Torcuato in OctoberArgentina · 30 kmHigh 20.8°C · Low 12.6°C · 117 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 Avellaneda) is explained once on the Avellaneda year overview and on the Sources, method and limits page.
Quilmes and Berazategui lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.