Florianópolis weather in December
December in Florianópolis: hot, soaked, with clean air — an excellent time to visit.
#4 of 12 months in Florianópolis · #127 of 604 destinations to visit in December · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Florianópolis climate normals — December
| Daytime high | 26°C / 79°F | 🥵 hot |
|---|---|---|
| Nighttime low | 21°C / 70°F | |
| Feels like (high) | 30°C / 86°F | |
| Rainfall | 176 mm / 6.9 in | ⛈ soaked |
| Rainy days | 19 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 20°C / 68°F | |
| Sunshine | 10.1 h/day | |
| Daylight | 13.8 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 38 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Florianópolis?
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Florianópolis in December — FAQ
- Is December a good time to visit Florianópolis?
- December in Florianópolis: hot, soaked, with clean air — an excellent time to visit. It ranks #4 of 12 months for Florianópolis on SeasonMap's comfort score (82/100).
- What is the weather like in Florianópolis in December?
- In December, Florianópolis averages a daily high of 26.3°C and a low of 21.1°C, with about 175.8 mm of rain over roughly 18.8 rainy days.
- What is the air quality in Florianópolis in December?
- Florianópolis has a mean US Air Quality Index of about 38 in December.