Brazil
Florianópolis in March: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Florianópolis in March is climatically well suited to beach holidays and family holidays. The average daily high is around 28 °C, and the sea is about 25 °C. With about 18 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
#4
Dryness
#9
Sun
#5
Sea warmth
#3
Published best categories: Overall, Beach, Family
Florianópolis · MarchPhoto: No machine-readable author provided. Herbert VAlterE assumed (based on… · CC BY 2.5Climate facts
- Average high
- 28 °C
- Average low
- 21 °C
- Sea
- 25 °C
- Rainy days (est.)
- 18 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 80 %
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 |
|---|---|---|---|---|---|---|---|---|---|
| February | 29 | 22 | 20 | 154 | 6.9 | 80 | 3.4 | 26 | 64 |
| March (selected) | 28 | 21 | 18 | 131 | 6.0 | 80 | 3.3 | 25 | 67 |
| April | 26 | 18 | 13 | 92 | 4.9 | 80 | 3.2 | 24 | 76 |
How do the previous and next months compare?
Baseline: March (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 | |
|---|---|---|---|---|---|---|---|---|---|
| February | -3 | +0.9 °C | +0.9 °C | +1.8 | +22.7 mm | +0.9 h | -0.3 % | +0.1 m/s | +0.5 °C |
| April | +9 | -1.9 °C | -2.4 °C | -5.3 | -39.4 mm | -1.1 h | -0.1 % | -0.1 m/s | -1.4 °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 March?
The average daily high is around 28 °C, with an average daily low of about 21 °C.
Can you swim in Florianópolis in March?
The sea is about 25 °C (warm).
Does it rain a lot in Florianópolis in March?
The curated estimate is about 18 rainy days per month, not a directly measured long-term average. Total precipitation averages around 131 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. March is one of them.