Climate averages 1991–2020
Rio do Sul weather
in August.
A mild, wet month: the 10th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Rio do Sul: daytime highs average 20.9°C and nights cool to about 11.8°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 94 mm of rain on roughly 9 days, which makes August a wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 09 min on an average August day.
The nearest other city in this atlas is Indaial (54 km away). In August its highs average 21.1°C, about as warm as Rio do Sul, with 100 mm of rain.
Among the 448 cities listed in Brazil, Rio do Sul ranks joint 399th 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; Rio do Sul is 5.2°C cooler than that mean.
From August to September, average highs rise by 1.1°C to 22.1°C, and monthly rainfall rises from 94 mm to 151 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
Rio do Sul climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.9°C20.0°C | 20.0°C | 184 | 20.3 | 13.614 h |
| February | 27.8°C20.2°C | 20.2°C | 156 | 18.5 | 13.013 h |
| March | 26.6°C19.2°C | 19.2°C | 105 | 15.1 | 12.312 h |
| April | 24.4°C16.7°C | 16.7°C | 82 | 9.3 | 11.511 h |
| May | 21.0°C13.1°C | 13.1°C | 105 | 9.2 | 10.811 h |
| June | 19.5°C11.4°C | 11.4°C | 111 | 9.7 | 10.510 h |
| July | 19.2°C10.5°C | 10.5°C | 99 | 9.8 | 10.611 h |
| August, selected | 20.9°C11.8°C | 11.8°C | 94 | 9.3 | 11.211 h |
| September | 22.1°C13.8°C | 13.8°C | 151 | 12.4 | 11.912 h |
| October | 23.8°C15.9°C | 15.9°C | 150 | 15.1 | 12.713 h |
| November | 25.3°C17.1°C | 17.1°C | 121 | 14.7 | 13.413 h |
| December | 27.3°C19.0°C | 19.0°C | 148 | 16.4 | 13.814 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
- Indaial in AugustBrazil · 54 kmHigh 21.1°C · Low 12.7°C · 100 mm rain
- Blumenau in AugustBrazil · 66 kmHigh 21.4°C · Low 13.3°C · 96 mm rain
- Brusque in AugustBrazil · 73 kmHigh 21.4°C · Low 13.3°C · 96 mm rain
- Gaspar in AugustBrazil · 75 kmHigh 21.3°C · Low 13.5°C · 96 mm rain
- Lages in AugustBrazil · 95 kmHigh 18.0°C · Low 8.4°C · 113 mm rain
- Jaraguá do Sul in AugustBrazil · 99 kmHigh 21.6°C · Low 13.4°C · 92 mm rain
- Camboriú in AugustBrazil · 100 kmHigh 20.5°C · Low 14.3°C · 98 mm rain
- Balneário Camboriú in AugustBrazil · 103 kmHigh 20.1°C · Low 14.3°C · 98 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 Rio do Sul) is explained once on the Rio do Sul year overview and on the Sources, method and limits page.