Climate averages 1991–2020
Itajaí weather
in December.
A warm, wet month: the 4th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Itajaí: daytime highs average 26.1°C and nights cool to about 21.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 156 mm of rain on roughly 18 days, which makes December a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 48 min on an average December day.
The nearest other city in this atlas is Balneário Camboriú (10 km away). In December its highs average 26.4°C, about as warm as Itajaí, with 156 mm of rain.
Among the 448 cities listed in Brazil, Itajaí ranks joint 384th of 448 for the warmest December highs and joint 147th of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; Itajaí is 2.4°C cooler than that mean.
From December to January, average highs rise by 1.1°C to 27.1°C, and monthly rainfall rises from 156 mm to 215 mm.
The annual picture
December 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
Itajaí climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.1°C22.6°C | 22.6°C | 215 | 21.9 | 13.614 h |
| February | 27.2°C22.8°C | 22.8°C | 196 | 19.5 | 13.013 h |
| March | 26.4°C22.0°C | 22.0°C | 147 | 19.5 | 12.312 h |
| April | 24.7°C20.0°C | 20.0°C | 98 | 12.5 | 11.511 h |
| May | 22.0°C17.1°C | 17.1°C | 115 | 11.7 | 10.811 h |
| June | 20.1°C15.1°C | 15.1°C | 109 | 10.0 | 10.510 h |
| July | 19.2°C14.0°C | 14.0°C | 98 | 10.1 | 10.611 h |
| August | 19.7°C14.6°C | 14.6°C | 98 | 9.9 | 11.211 h |
| September | 20.7°C16.2°C | 16.2°C | 152 | 13.0 | 11.912 h |
| October | 22.4°C18.2°C | 18.2°C | 143 | 15.5 | 12.713 h |
| November | 24.0°C19.6°C | 19.6°C | 143 | 17.0 | 13.413 h |
| December, selected | 26.1°C21.5°C | 21.5°C | 156 | 18.3 | 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
December in nearby cities
- Balneário Camboriú in DecemberBrazil · 10 kmHigh 26.4°C · Low 21.3°C · 156 mm rain
- Camboriú in DecemberBrazil · 13 kmHigh 26.8°C · Low 21.2°C · 156 mm rain
- Itapema in DecemberBrazil · 21 kmHigh 27.3°C · Low 20.9°C · 126 mm rain
- Gaspar in DecemberBrazil · 30 kmHigh 27.4°C · Low 20.4°C · 176 mm rain
- Brusque in DecemberBrazil · 33 kmHigh 27.6°C · Low 20.2°C · 176 mm rain
- Blumenau in DecemberBrazil · 40 kmHigh 27.5°C · Low 20.2°C · 176 mm rain
- Indaial in DecemberBrazil · 57 kmHigh 27.3°C · Low 19.6°C · 188 mm rain
- Jaraguá do Sul in DecemberBrazil · 62 kmHigh 27.4°C · Low 20.2°C · 172 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 Itajaí) is explained once on the Itajaí year overview and on the Sources, method and limits page.
Balneário Camboriú and Camboriú lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.