Climate averages 1991–2020
Rio do Sul weather
in January.
A warm, very wet month: the warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a warm month in Rio do Sul: daytime highs average 27.9°C and nights cool to about 20.0°C. By daytime temperature it is the warmest month of the year.
Expect about 184 mm of rain on roughly 20 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 39 min on an average January day.
The nearest other city in this atlas is Indaial (54 km away). In January its highs average 28.1°C, about as warm as Rio do Sul, with 242 mm of rain.
Among the 448 cities listed in Brazil, Rio do Sul ranks joint 274th of 448 for the warmest January highs and 150th of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; Rio do Sul is 0.5°C cooler than that mean.
From January to February, average highs fall by 0.2°C to 27.8°C, and monthly rainfall falls from 184 mm to 156 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- Indaial in JanuaryBrazil · 54 kmHigh 28.1°C · Low 20.8°C · 242 mm rain
- Blumenau in JanuaryBrazil · 66 kmHigh 28.2°C · Low 21.3°C · 234 mm rain
- Brusque in JanuaryBrazil · 73 kmHigh 28.5°C · Low 21.3°C · 234 mm rain
- Gaspar in JanuaryBrazil · 75 kmHigh 28.2°C · Low 21.5°C · 234 mm rain
- Lages in JanuaryBrazil · 95 kmHigh 25.0°C · Low 16.7°C · 194 mm rain
- Jaraguá do Sul in JanuaryBrazil · 99 kmHigh 28.1°C · Low 21.3°C · 237 mm rain
- Camboriú in JanuaryBrazil · 100 kmHigh 27.8°C · Low 22.4°C · 215 mm rain
- Balneário Camboriú in JanuaryBrazil · 103 kmHigh 27.4°C · Low 22.4°C · 215 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.