Climate averages 1991–2020
Blumenau weather
in January.
A hot, very wet month: one of the warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Blumenau: daytime highs average 28.2°C and nights cool to about 21.3°C. By daytime temperature it is one of the warmest months of the year.
Expect about 234 mm of rain on roughly 23 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 37 min on an average January day.
The nearest other city in this atlas is Gaspar (11 km away). In January its highs average 28.2°C, about as warm as Blumenau, with 234 mm of rain.
Among the 448 cities listed in Brazil, Blumenau ranks joint 256th of 448 for the warmest January highs and joint 260th of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; Blumenau is 0.2°C cooler than that mean.
From January to February, average highs stay level at 28.2°C, and monthly rainfall falls from 234 mm to 217 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
Blumenau climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 28.2°C21.3°C | 21.3°C | 234 | 22.6 | 13.614 h |
| February | 28.2°C21.5°C | 21.5°C | 217 | 20.1 | 13.013 h |
| March | 27.2°C20.5°C | 20.5°C | 148 | 19.3 | 12.312 h |
| April | 25.4°C18.3°C | 18.3°C | 93 | 12.1 | 11.511 h |
| May | 22.3°C15.0°C | 15.0°C | 109 | 11.1 | 10.811 h |
| June | 20.8°C13.2°C | 13.2°C | 106 | 9.5 | 10.510 h |
| July | 20.3°C12.3°C | 12.3°C | 97 | 9.8 | 10.611 h |
| August | 21.4°C13.3°C | 13.3°C | 96 | 10.0 | 11.211 h |
| September | 22.2°C15.0°C | 15.0°C | 158 | 13.2 | 11.912 h |
| October | 23.9°C17.0°C | 17.0°C | 150 | 16.8 | 12.713 h |
| November | 25.3°C18.2°C | 18.2°C | 152 | 17.4 | 13.413 h |
| December | 27.5°C20.2°C | 20.2°C | 176 | 19.1 | 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
- Gaspar in JanuaryBrazil · 11 kmHigh 28.2°C · Low 21.5°C · 234 mm rain
- Indaial in JanuaryBrazil · 17 kmHigh 28.1°C · Low 20.8°C · 242 mm rain
- Brusque in JanuaryBrazil · 25 kmHigh 28.5°C · Low 21.3°C · 234 mm rain
- Itajaí in JanuaryBrazil · 40 kmHigh 27.1°C · Low 22.6°C · 215 mm rain
- Camboriú in JanuaryBrazil · 42 kmHigh 27.8°C · Low 22.4°C · 215 mm rain
- Balneário Camboriú in JanuaryBrazil · 43 kmHigh 27.4°C · Low 22.4°C · 215 mm rain
- Jaraguá do Sul in JanuaryBrazil · 48 kmHigh 28.1°C · Low 21.3°C · 237 mm rain
- Itapema in JanuaryBrazil · 49 kmHigh 28.2°C · Low 22.1°C · 187 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 Blumenau) is explained once on the Blumenau year overview and on the Sources, method and limits page.
Brusque and Gaspar lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.