Florianópolis in December
In December, Florianópolis averages 27°C (81°F) during the day and 21°C (70°F) at night, with frequent rain — about 23 days of the month see precipitation (159 mm total).
ShoulderConditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.
December offers comfortable temperatures in Florianópolis, with some rain to plan around.
How December compares to the rest of the year in Florianópolis
December is in the middle of the year for warmth in Florianópolis (4th of 12) and moderately rainy compared to the rest of the year (5th of 12). Daytime temperature runs 3°C above the annual average (24°C). December runs 2°C warmer than November (25°C) and warms a further 2°C into January (29°C).
December sunrise & sunset in Florianópolis
Times shown for Florianópolis local time (America/Sao_Paulo), calculated for the 15th of December. They shift by a few minutes day to day across the month.
Photography light in Florianópolis — December
Golden-hour and blue-hour windows for the 15th of December, in Florianópolis's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Florianópolis in December
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on December's tier (Shoulder) and Florianópolis's popularity.
Crowds & pricing — December in Florianópolis
Florianópolis is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — December in Florianópolis
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Sea temperature in Florianópolis — December
Across the year Florianópolis's sea swings from 17.5°C (July) to 27.4°C (February) — December sits at 25.5°C.
Florianópolis in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 29°C / 84°F | 23°C / 73°F | 173 mm | 26 | — |
| February | 28°C / 83°F | 22°C / 72°F | 182 mm | 22 | — |
| March | 27°C / 81°F | 22°C / 71°F | 137 mm | 27 | — |
| April | 25°C / 77°F | 19°C / 67°F | 79 mm | 21 | — |
| May | 22°C / 72°F | 17°C / 62°F | 125 mm | 19 | — |
| June | 21°C / 69°F | 14°C / 58°F | 116 mm | 14 | — |
| July | 20°C / 69°F | 14°C / 57°F | 65 mm | 13 | — |
| August | 21°C / 70°F | 15°C / 58°F | 88 mm | 14 | — |
| September | 22°C / 72°F | 17°C / 62°F | 115 mm | 19 | — |
| October | 23°C / 74°F | 18°C / 64°F | 156 mm | 24 | — |
| November | 25°C / 76°F | 19°C / 66°F | 137 mm | 23 | — |
| December | 27°C / 81°F | 21°C / 70°F | 159 mm | 23 | — |
Other cities with similar December weather
🌍 See the full ranked list of climate twins for Florianópolis in December →
Frequently asked questions
How hot is Florianópolis in December?
In December, Florianópolis averages a high of 27°C (81°F) and a low of 21°C (70°F) — generally warm.
Does it rain a lot in Florianópolis in December?
December is quite rainy in Florianópolis, with about 23 rainy days on average.
Is December a good time to visit Florianópolis?
December is warm but on the rainy side. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Florianópolis in December?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full December packing list for Florianópolis for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.