Florianópolis in August
In August, Florianópolis averages 21°C (70°F) during the day and 15°C (58°F) at night, with frequent rain — about 14 days of the month see precipitation (88 mm total).
High seasonConditions are comfortable for sightseeing without being sweltering. Plan for unsettled weather and bring rain gear.
August offers comfortable temperatures in Florianópolis, with some rain to plan around.
How August compares to the rest of the year in Florianópolis
August is one of the coolest months in Florianópolis (10th of 12) and one of the driest months (11th of 12). Daytime temperature runs 3°C below the annual average (24°C). August runs 1°C warmer than July (20°C) and warms a further 1°C into September (22°C).
August sunrise & sunset in Florianópolis
Times shown for Florianópolis local time (America/Sao_Paulo), calculated for the 15th of August. They shift by a few minutes day to day across the month.
Photography light in Florianópolis — August
Golden-hour and blue-hour windows for the 15th of August, in Florianópolis's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Florianópolis in August
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 August's tier (High season) and Florianópolis's popularity.
Crowds & pricing — August in Florianópolis
This is a busy month in Florianópolis — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: excellent tourism weather
Sun & mosquito risk — August 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 — August
Across the year Florianópolis's sea swings from 17.5°C (July) to 27.4°C (February) — August sits at 18.6°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 August weather
🌍 See the full ranked list of climate twins for Florianópolis in August →
Frequently asked questions
How hot is Florianópolis in August?
In August, Florianópolis averages a high of 21°C (70°F) and a low of 15°C (58°F) — generally mild and pleasant.
Does it rain a lot in Florianópolis in August?
August can be fairly wet in Florianópolis, with about 14 rainy days on average.
Is August a good time to visit Florianópolis?
August is mild and pleasant but on the rainy side. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Florianópolis in August?
Pack light layers for warm days and cooler evenings, plus a compact umbrella or rain jacket. See the full August packing list for Florianópolis for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.