Climate averages 1991–2020
Berisso weather
in September.
A mild, moderately wet month: the 9th warmest and the joint 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Berisso: daytime highs average 17.0°C and nights cool to about 10.3°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 81 mm of rain on roughly 7 days, which makes September a moderately wet month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 51 min on an average September day.
The nearest other city in this atlas is La Plata (9 km away). In September its highs average 17.0°C, about as warm as Berisso, with 72 mm of rain.
Among the 67 cities listed in Argentina, Berisso ranks joint 58th of 67 for the warmest September highs and 58th of 67 for the driest September (rainfall, lowest first). The mean September high of those 67 cities is 19.4°C; Berisso is 2.4°C cooler than that mean.
From September to October, average highs rise by 2.9°C to 19.9°C, and monthly rainfall rises from 81 mm to 111 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
Berisso climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.4°C20.2°C | 20.2°C | 79 | 6.5 | 14.214 h |
| February | 26.3°C19.6°C | 19.6°C | 93 | 7.6 | 13.413 h |
| March | 24.4°C18.0°C | 18.0°C | 93 | 7.1 | 12.312 h |
| April | 20.8°C14.6°C | 14.6°C | 99 | 8.1 | 11.211 h |
| May | 17.1°C11.5°C | 11.5°C | 72 | 6.8 | 10.310 h |
| June | 14.1°C8.6°C | 8.6°C | 81 | 7.5 | 9.910 h |
| July | 13.2°C7.4°C | 7.4°C | 83 | 7.4 | 10.110 h |
| August | 15.3°C8.8°C | 8.8°C | 73 | 6.9 | 10.811 h |
| September, selected | 17.0°C10.3°C | 10.3°C | 81 | 7.1 | 11.812 h |
| October | 19.9°C13.1°C | 13.1°C | 111 | 9.2 | 12.913 h |
| November | 23.1°C15.8°C | 15.8°C | 97 | 7.8 | 13.914 h |
| December | 26.0°C18.4°C | 18.4°C | 76 | 7.4 | 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
September in nearby cities
- La Plata in SeptemberArgentina · 9 kmHigh 17.0°C · Low 10.0°C · 72 mm rain
- Berazategui in SeptemberArgentina · 32 kmHigh 17.1°C · Low 10.3°C · 74 mm rain
- Quilmes in SeptemberArgentina · 38 kmHigh 17.4°C · Low 9.9°C · 74 mm rain
- Lomas de Zamora in SeptemberArgentina · 49 kmHigh 17.7°C · Low 9.6°C · 72 mm rain
- Avellaneda in SeptemberArgentina · 50 kmHigh 17.5°C · Low 10.1°C · 74 mm rain
- San Vicente in SeptemberArgentina · 52 kmHigh 18.0°C · Low 8.6°C · 72 mm rain
- Buenos Aires in SeptemberArgentina · 53 kmHigh 17.3°C · Low 10.4°C · 80 mm rain
- Ezeiza in SeptemberArgentina · 59 kmHigh 18.1°C · Low 9.0°C · 72 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 Berisso) is explained once on the Berisso year overview and on the Sources, method and limits page.