Climate averages 1991–2020
Foz do Iguaçu weather
in August.
A warm, wet month: the 9th warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Foz do Iguaçu: daytime highs average 24.3°C and nights cool to about 14.8°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 94 mm of rain on roughly 7 days, which makes August a wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 13 min on an average August day.
The nearest other city in this atlas is Ciudad del Este (8 km away). In August its highs average 24.2°C, about as warm as Foz do Iguaçu, with 93 mm of rain.
Among the 448 cities listed in Brazil, Foz do Iguaçu ranks joint 306th of 448 for the warmest August highs and joint 386th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Foz do Iguaçu is 1.9°C cooler than that mean.
From August to September, average highs rise by 2.1°C to 26.4°C, and monthly rainfall rises from 94 mm to 155 mm.
The annual picture
August 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
Foz do Iguaçu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.8°C23.3°C | 23.3°C | 157 | 15.3 | 13.514 h |
| February | 30.3°C22.9°C | 22.9°C | 153 | 14.1 | 13.013 h |
| March | 29.5°C21.8°C | 21.8°C | 141 | 12.5 | 12.312 h |
| April | 27.2°C19.2°C | 19.2°C | 138 | 9.4 | 11.512 h |
| May | 23.2°C15.8°C | 15.8°C | 162 | 9.1 | 10.911 h |
| June | 21.8°C14.5°C | 14.5°C | 137 | 9.2 | 10.611 h |
| July | 21.7°C13.4°C | 13.4°C | 118 | 8.5 | 10.711 h |
| August, selected | 24.3°C14.8°C | 14.8°C | 94 | 7.0 | 11.211 h |
| September | 26.4°C16.7°C | 16.7°C | 155 | 9.9 | 11.912 h |
| October | 28.3°C19.6°C | 19.6°C | 197 | 13.2 | 12.713 h |
| November | 29.2°C20.4°C | 20.4°C | 158 | 11.7 | 13.313 h |
| December | 30.5°C22.4°C | 22.4°C | 184 | 14.8 | 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
August in nearby cities
- Ciudad del Este in AugustParaguay · 8 kmHigh 24.2°C · Low 14.8°C · 93 mm rain
- Toledo, Brazil in AugustBrazil · 126 kmHigh 23.6°C · Low 13.9°C · 96 mm rain
- Cascavel in AugustBrazil · 132 kmHigh 22.1°C · Low 12.4°C · 98 mm rain
- Francisco Beltrão in AugustBrazil · 165 kmHigh 22.1°C · Low 11.7°C · 101 mm rain
- Pato Branco in AugustBrazil · 206 kmHigh 20.9°C · Low 10.4°C · 101 mm rain
- Umuarama in AugustBrazil · 236 kmHigh 24.9°C · Low 15.0°C · 88 mm rain
- Encarnación in AugustParaguay · 236 kmHigh 22.7°C · Low 13.3°C · 89 mm rain
- Posadas in AugustArgentina · 244 kmHigh 22.5°C · Low 13.4°C · 90 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 Foz do Iguaçu) is explained once on the Foz do Iguaçu year overview and on the Sources, method and limits page.