Climate averages 1991–2020
Florianópolis weather
in August.
A mild, moderately wet month: the 11th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Florianópolis: daytime highs average 20.2°C and nights cool to about 14.3°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 86 mm of rain on roughly 9 days, which makes August a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 08 min on an average August day.
The nearest other city in this atlas is São José (Santa Catarina, 27.62°S 48.63°W), Brazil (8 km away). In August its highs average 20.6°C, about as warm as Florianópolis, with 90 mm of rain.
Among the 448 cities listed in Brazil, Florianópolis ranks joint 420th of 448 for the warmest August highs and 372nd of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Florianópolis is 6.0°C cooler than that mean.
From August to September, average highs rise by 0.8°C to 21.0°C, and monthly rainfall rises from 86 mm to 132 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Florianópolis climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.3°C22.3°C | 22.3°C | 181 | 18.9 | 13.714 h |
| February | 27.4°C22.5°C | 22.5°C | 161 | 17.3 | 13.113 h |
| March | 26.5°C21.6°C | 21.6°C | 125 | 17.2 | 12.312 h |
| April | 24.9°C19.6°C | 19.6°C | 84 | 10.4 | 11.511 h |
| May | 22.0°C16.7°C | 16.7°C | 110 | 10.2 | 10.811 h |
| June | 20.3°C14.7°C | 14.7°C | 94 | 8.9 | 10.410 h |
| July | 19.4°C13.5°C | 13.5°C | 84 | 9.0 | 10.611 h |
| August, selected | 20.2°C14.3°C | 14.3°C | 86 | 8.8 | 11.111 h |
| September | 21.0°C15.8°C | 15.8°C | 132 | 12.4 | 11.912 h |
| October | 22.7°C17.7°C | 17.7°C | 122 | 13.7 | 12.713 h |
| November | 24.3°C19.1°C | 19.1°C | 116 | 14.0 | 13.513 h |
| December | 26.4°C21.1°C | 21.1°C | 126 | 15.0 | 13.814 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- São José (Santa Catarina, 27.62°S 48.63°W), Brazil in AugustBrazil · 8 kmHigh 20.6°C · Low 13.5°C · 90 mm rain
- Palhoça in AugustBrazil · 13 kmHigh 20.9°C · Low 13.3°C · 89 mm rain
- Itapema in AugustBrazil · 57 kmHigh 21.2°C · Low 13.9°C · 95 mm rain
- Camboriú in AugustBrazil · 64 kmHigh 20.5°C · Low 14.3°C · 98 mm rain
- Brusque in AugustBrazil · 66 kmHigh 21.4°C · Low 13.3°C · 96 mm rain
- Balneário Camboriú in AugustBrazil · 68 kmHigh 20.1°C · Low 14.3°C · 98 mm rain
- Itajaí in AugustBrazil · 77 kmHigh 19.7°C · Low 14.6°C · 98 mm rain
- Gaspar in AugustBrazil · 84 kmHigh 21.3°C · Low 13.5°C · 96 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Florianópolis) is explained once on the Florianópolis year overview and on the Sources, method and limits page.