Climate averages 1991–2020
Paraná weather
in September.
A mild, moderately wet month: the 8th warmest and the 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Paraná: daytime highs average 20.8°C and nights cool to about 11.1°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 63 mm of rain on roughly 6 days, which makes September a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 52 min on an average September day.
The nearest other city in this atlas is Santa Fe (19 km away). In September its highs average 21.4°C, 0.5°C warmer than Paraná, with 65 mm of rain.
Among the 67 cities listed in Argentina, Paraná ranks joint 21st of 67 for the warmest September highs and 30th of 67 for the driest September (rainfall, lowest first). The mean September high of those 67 cities is 19.4°C; Paraná is 1.4°C warmer than that mean.
From September to October, average highs rise by 2.7°C to 23.6°C, and monthly rainfall rises from 63 mm to 122 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
Paraná climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.1°C20.7°C | 20.7°C | 105 | 8.5 | 14.014 h |
| February | 28.5°C19.9°C | 19.9°C | 114 | 8.4 | 13.213 h |
| March | 26.7°C18.2°C | 18.2°C | 132 | 8.2 | 12.312 h |
| April | 22.9°C15.1°C | 15.1°C | 113 | 8.1 | 11.311 h |
| May | 19.2°C12.1°C | 12.1°C | 70 | 5.8 | 10.511 h |
| June | 16.5°C9.2°C | 9.2°C | 45 | 5.4 | 10.110 h |
| July | 15.9°C8.0°C | 8.0°C | 39 | 4.5 | 10.310 h |
| August | 18.6°C9.2°C | 9.2°C | 47 | 4.8 | 11.011 h |
| September, selected | 20.8°C11.1°C | 11.1°C | 63 | 6.1 | 11.912 h |
| October | 23.6°C14.0°C | 14.0°C | 122 | 9.3 | 12.813 h |
| November | 26.5°C16.6°C | 16.6°C | 108 | 7.3 | 13.714 h |
| December | 28.8°C19.1°C | 19.1°C | 128 | 8.2 | 14.214 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
- Santa Fe in SeptemberArgentina · 19 kmHigh 21.4°C · Low 11.4°C · 65 mm rain
- Rafaela in SeptemberArgentina · 106 kmHigh 21.8°C · Low 11.0°C · 57 mm rain
- Rosario in SeptemberArgentina · 135 kmHigh 20.4°C · Low 10.1°C · 61 mm rain
- Gobernador Gálvez in SeptemberArgentina · 145 kmHigh 20.4°C · Low 10.2°C · 61 mm rain
- San Nicolás de los Arroyos in SeptemberArgentina · 181 kmHigh 20.0°C · Low 10.4°C · 67 mm rain
- Gualeguaychú in SeptemberArgentina · 236 kmHigh 19.7°C · Low 10.1°C · 87 mm rain
- Paysandú in SeptemberUruguay · 240 kmHigh 20.0°C · Low 10.1°C · 96 mm rain
- Pergamino in SeptemberArgentina · 240 kmHigh 19.7°C · Low 9.3°C · 68 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 Paraná) is explained once on the Paraná year overview and on the Sources, method and limits page.