Brazil
Florianópolis in December: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Florianópolis in December is climatically well suited to beach holidays and family holidays. The average daily high is around 28 °C, and the sea is about 24 °C. With about 19 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
67/100 · #4
Warmth
#3
Dryness
#10
Sun
#1
Sea warmth
#4
Published best categories: Beach
Florianópolis · DecemberPhoto: No machine-readable author provided. Herbert VAlterE assumed (based on… · CC BY 2.5Climate facts
- Average high
- 28 °C
- Average low
- 20 °C
- Sea
- 24 °C
- Rainy days (est.)
- 19 rainy days (est.)
- Sun (est.)
- 8 h/day
- Humidity
- 78 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| November | 25 | 18 | 17 | 133 | 6.9 | 80 | 3.9 | 22 | 71 |
| December (selected) | 28 | 20 | 19 | 151 | 7.5 | 78 | 3.8 | 24 | 67 |
| January | 28 | 21 | 22 | 195 | 7.3 | 79 | 3.7 | 26 | 64 |
How do the previous and next months compare?
Baseline: December (67/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| November | +4 | -2.3 °C | -2.1 °C | -2.7 | -18.4 mm | -0.6 h | +1.3 % | +0.1 m/s | -1.8 °C |
| January | -3 | +0.7 °C | +1.5 °C | +2.7 | +43.3 mm | -0.2 h | +0.9 % | -0.1 m/s | +1.5 °C |
All twelve months in context
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Where to stay in Florianópolis
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Useful next decisions
Frequently asked questions
How warm is Florianópolis in December?
The average daily high is around 28 °C, with an average daily low of about 20 °C.
Can you swim in Florianópolis in December?
The sea is about 24 °C (warm).
Does it rain a lot in Florianópolis in December?
The curated estimate is about 19 rainy days per month, not a directly measured long-term average. Total precipitation averages around 151 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Florianópolis?
By the climate score, March, April, May and November are the strongest months for Florianópolis. For a beach trip: January, March, April and December. December is not among them.