Climate averages 1991–2020
São José (Santa Catarina, 28.21°S 49.16°W), Brazil weather
in December.
A warm, very wet month: the 3rd 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 São José (Santa Catarina, 28.21°S 49.16°W), Brazil: daytime highs average 26.9°C and nights cool to about 18.3°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 226 mm of rain on roughly 19 days, which makes December a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 54 min on an average December day.
The nearest other city in this atlas is Tubarão (32 km away). In December its highs average 27.2°C, about as warm as São José (Santa Catarina, 28.21°S 49.16°W), Brazil, with 92 mm of rain.
Among the 448 cities listed in Brazil, São José (Santa Catarina, 28.21°S 49.16°W), Brazil ranks joint 327th of 448 for the warmest December highs and joint 322nd of 448 for the driest December (rainfall, lowest first). The mean December high of those 448 cities is 28.5°C; São José (Santa Catarina, 28.21°S 49.16°W), Brazil is 1.6°C cooler than that mean.
From December to January, average highs rise by 0.4°C to 27.3°C, and monthly rainfall rises from 226 mm to 314 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
São José (Santa Catarina, 28.21°S 49.16°W), Brazil climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.3°C19.4°C | 19.4°C | 314 | 22.9 | 13.714 h |
| February | 27.2°C19.4°C | 19.4°C | 282 | 21.5 | 13.113 h |
| March | 26.2°C18.3°C | 18.3°C | 198 | 20.4 | 12.312 h |
| April | 24.4°C16.0°C | 16.0°C | 120 | 13.0 | 11.411 h |
| May | 21.3°C12.7°C | 12.7°C | 133 | 11.7 | 10.711 h |
| June | 19.9°C11.0°C | 11.0°C | 98 | 9.8 | 10.410 h |
| July | 19.5°C10.2°C | 10.2°C | 87 | 10.0 | 10.511 h |
| August | 21.1°C11.2°C | 11.2°C | 98 | 9.7 | 11.111 h |
| September | 21.7°C13.0°C | 13.0°C | 141 | 13.8 | 11.912 h |
| October | 23.3°C15.1°C | 15.1°C | 166 | 17.4 | 12.713 h |
| November | 24.8°C16.3°C | 16.3°C | 193 | 17.2 | 13.513 h |
| December, selected | 26.9°C18.3°C | 18.3°C | 226 | 19.4 | 13.914 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
- Tubarão in DecemberBrazil · 32 kmHigh 27.2°C · Low 20.5°C · 92 mm rain
- Criciúma in DecemberBrazil · 55 kmHigh 26.7°C · Low 18.9°C · 127 mm rain
- Palhoça in DecemberBrazil · 80 kmHigh 27.0°C · Low 20.4°C · 169 mm rain
- São José (Santa Catarina, 27.62°S 48.63°W), Brazil in DecemberBrazil · 85 kmHigh 26.9°C · Low 20.7°C · 167 mm rain
- Araranguá in DecemberBrazil · 87 kmHigh 25.8°C · Low 19.3°C · 139 mm rain
- Florianópolis in DecemberBrazil · 91 kmHigh 26.4°C · Low 21.1°C · 126 mm rain
- Rio do Sul in DecemberBrazil · 121 kmHigh 27.3°C · Low 19.0°C · 148 mm rain
- Lages in DecemberBrazil · 122 kmHigh 24.5°C · Low 15.6°C · 167 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 São José) is explained once on the São José (Santa Catarina, 28.21°S 49.16°W), Brazil year overview and on the Sources, method and limits page.