Climate averages 1991–2020
Formosa, Argentina weather
in September.
A warm, wet month: the 8th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Formosa, Argentina: daytime highs average 25.8°C and nights cool to about 15.9°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 110 mm of rain on roughly 9 days, which makes September a wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 55 min on an average September day.
The nearest other city in this atlas is Nemby (109 km away). In September its highs average 26.4°C, 0.6°C warmer than Formosa, Argentina, with 113 mm of rain.
Among the 67 cities listed in Argentina, Formosa, Argentina ranks 4th of 67 for the warmest September highs and 64th of 67 for the driest September (rainfall, lowest first). The mean September high of those 67 cities is 19.4°C; Formosa, Argentina is 6.4°C warmer than that mean.
From September to October, average highs rise by 2.2°C to 28.0°C, and monthly rainfall rises from 110 mm to 184 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
Formosa, Argentina climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.3°C23.7°C | 23.7°C | 119 | 11.0 | 13.614 h |
| February | 31.3°C23.1°C | 23.1°C | 138 | 11.6 | 13.013 h |
| March | 30.0°C21.7°C | 21.7°C | 128 | 10.8 | 12.312 h |
| April | 27.0°C19.0°C | 19.0°C | 153 | 9.5 | 11.511 h |
| May | 23.0°C15.6°C | 15.6°C | 128 | 8.4 | 10.911 h |
| June | 21.3°C14.1°C | 14.1°C | 99 | 8.4 | 10.511 h |
| July | 20.9°C12.6°C | 12.6°C | 78 | 7.5 | 10.711 h |
| August | 23.7°C14.1°C | 14.1°C | 64 | 6.6 | 11.211 h |
| September, selected | 25.8°C15.9°C | 15.9°C | 110 | 8.6 | 11.912 h |
| October | 28.0°C18.8°C | 18.8°C | 184 | 11.5 | 12.713 h |
| November | 29.3°C20.0°C | 20.0°C | 182 | 10.5 | 13.413 h |
| December | 31.3°C22.4°C | 22.4°C | 162 | 11.4 | 13.714 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
- Nemby in SeptemberParaguay · 109 kmHigh 26.4°C · Low 16.5°C · 113 mm rain
- Asunción in SeptemberParaguay · 113 kmHigh 26.4°C · Low 16.6°C · 107 mm rain
- San Lorenzo in SeptemberParaguay · 115 kmHigh 26.5°C · Low 16.5°C · 114 mm rain
- Capiatá in SeptemberParaguay · 118 kmHigh 26.3°C · Low 16.4°C · 114 mm rain
- Limpio in SeptemberParaguay · 133 kmHigh 26.9°C · Low 16.9°C · 114 mm rain
- Corrientes in SeptemberArgentina · 157 kmHigh 24.1°C · Low 14.5°C · 115 mm rain
- Resistencia in SeptemberArgentina · 164 kmHigh 24.5°C · Low 14.6°C · 106 mm rain
- Ituzaingó in SeptemberArgentina · 214 kmHigh 24.0°C · Low 15.3°C · 139 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 Formosa) is explained once on the Formosa, Argentina year overview and on the Sources, method and limits page.