Climate averages 1991–2020
Passo Fundo weather
in September.
A mild, wet month: the 8th 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 Passo Fundo: daytime highs average 20.6°C and nights cool to about 11.1°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 165 mm of rain on roughly 12 days, which makes September a wet month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 54 min on an average September day.
The nearest other city in this atlas is Erechim (71 km away). In September its highs average 21.2°C, 0.6°C warmer than Passo Fundo, with 185 mm of rain.
Among the 448 cities listed in Brazil, Passo Fundo ranks joint 434th of 448 for the warmest September highs and 436th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Passo Fundo is 6.9°C cooler than that mean.
From September to October, average highs rise by 2.1°C to 22.7°C, and monthly rainfall rises from 165 mm to 240 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
Passo Fundo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.3°C17.9°C | 17.9°C | 175 | 16.4 | 13.714 h |
| February | 25.7°C17.7°C | 17.7°C | 168 | 15.3 | 13.113 h |
| March | 24.8°C16.5°C | 16.5°C | 145 | 13.3 | 12.312 h |
| April | 22.6°C14.1°C | 14.1°C | 142 | 10.6 | 11.411 h |
| May | 19.0°C10.9°C | 10.9°C | 165 | 10.2 | 10.711 h |
| June | 17.5°C9.4°C | 9.4°C | 150 | 10.2 | 10.410 h |
| July | 17.1°C8.4°C | 8.4°C | 166 | 10.4 | 10.511 h |
| August | 19.3°C9.7°C | 9.7°C | 117 | 9.3 | 11.111 h |
| September, selected | 20.6°C11.1°C | 11.1°C | 165 | 11.5 | 11.912 h |
| October | 22.7°C13.5°C | 13.5°C | 240 | 14.4 | 12.713 h |
| November | 24.3°C14.7°C | 14.7°C | 174 | 12.4 | 13.513 h |
| December | 26.0°C16.9°C | 16.9°C | 178 | 14.8 | 13.914 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
- Erechim in SeptemberBrazil · 71 kmHigh 21.2°C · Low 10.8°C · 185 mm rain
- Concórdia in SeptemberBrazil · 120 kmHigh 22.9°C · Low 12.3°C · 175 mm rain
- Chapecó in SeptemberBrazil · 131 kmHigh 22.6°C · Low 12.1°C · 191 mm rain
- Bento Gonçalves in SeptemberBrazil · 133 kmHigh 19.9°C · Low 10.1°C · 172 mm rain
- Lajeado in SeptemberBrazil · 141 kmHigh 21.8°C · Low 12.0°C · 161 mm rain
- Ijuí in SeptemberBrazil · 148 kmHigh 22.5°C · Low 12.8°C · 157 mm rain
- Farroupilha in SeptemberBrazil · 149 kmHigh 19.4°C · Low 9.8°C · 173 mm rain
- Caxias do Sul in SeptemberBrazil · 156 kmHigh 19.2°C · Low 9.6°C · 173 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 Passo Fundo) is explained once on the Passo Fundo year overview and on the Sources, method and limits page.