Florianopolis in Summer
In summer (December, January and February), Florianopolis sees average daytime highs around 27°C and overnight lows near 22°C, with 467 mm of rain over about 51 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 27°C. The sky is clear or mostly clear about 16% of the time across summer, and the air most often feels oppressive.
Summer is Florianopolis's weakest season of the year to visit on our travel score. For the whole year in context, see Florianopolis's year-round climate.
- Avg daytime high
- 27°C
- warmest season of the year
- Avg overnight low
- 22°C
- Rainfall
- 467 mm
- 51 wet days
- Avg wind
- 12 km/h
- Travel score
- 5.2
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Florianopolis in Summer
Across summer, daytime highs hold fairly steady around 27°C.
A typical summer day in Florianopolis reaches about 27°C and drops to 22°C overnight. The warmest of the three months is February, the coolest December.
Florianopolis weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 23° | 180 | 18.9 | 13.5 | 5.0 |
| Feb | 28° / 23° | 160 | 17.3 | 13 | 4.9 |
| Mar | 27° / 22° | 125 | 17.3 | 12.2 | 5.4 |
| Apr | 25° / 20° | 84 | 10.6 | 11.4 | 6.7 |
| May | 23° / 17° | 110 | 10.5 | 10.7 | 6.7 |
| Jun | 21° / 15° | 94 | 8.9 | 10.3 | 6.6 |
| Jul | 20° / 14° | 84 | 8.9 | 10.4 | 6.5 |
| Aug | 21° / 15° | 86 | 8.7 | 11 | 6.6 |
| Sep | 21° / 16° | 133 | 12.4 | 11.8 | 6.0 |
| Oct | 23° / 18° | 122 | 13.5 | 12.7 | 5.9 |
| Nov | 25° / 20° | 116 | 14.1 | 13.4 | 6.1 |
| Dec | 27° / 21° | 126 | 14.8 | 13.7 | 5.6 |
Cloud cover in Summer
The sky is clear or mostly clear about 16% of the time across summer.
Chance of precipitation in Summer
Florianopolis gets around 467 mm of rain over 51 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 12 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 36 min in early December to 12 h 36 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.6 kWh/m².
Is summer a good time to visit Florianopolis?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Florianopolis for sightseeing.
What to pack for Florianopolis in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Florianopolis sees daytime highs around 27°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 51 days see rain.
Sea temperature near Florianopolis in Summer
The nearest coast averages about 25°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 17 km away) is warmest in February at about 26°C and coldest in August near 18°C.
It's comfortable for a long swim from Oct 8 to Jun 8 — about 8 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 26 | 26 | 25 | 24 | 22 | 20 | 18 | 18 | 19 | 21 | 22 | 24 |
| Comfort | Warm | Warm | Warm | Refreshing | Refreshing | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 26 | Warm |
| Mar | 25 | Warm |
| Apr | 24 | Refreshing |
| May | 22 | Refreshing |
| Jun | 20 | Cool |
| Jul | 18 | Cool |
| Aug | 18 | Cool |
| Sep | 19 | Cool |
| Oct | 21 | Refreshing |
| Nov | 22 | Refreshing |
| Dec | 24 | Warm |
UV index in Florianopolis in Summer
Clear-sky midday UV across summer averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Florianopolis peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 13 | 11 | 8 | 5 | 5 | 4 | 6 | 8 | 9 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 11 | Extreme |
| Apr | 8 | Very high |
| May | 5 | High |
| Jun | 5 | Moderate |
| Jul | 4 | Moderate |
| Aug | 6 | High |
| Sep | 8 | Very high |
| Oct | 9 | Very high |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Where is Florianopolis?
Florianopolis sits at 27.6°S, 48.5°W, 26 m above sea level, in Brazil. The nearest listed city is Trindade, 3.0 km away.
Topography around Florianopolis
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Florianopolis.
Within 3 km, the terrain around Florianopolis has significant variations in elevation — a maximum elevation change of 280 m around an average of 22 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 547 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,750 m.
The land around Florianopolis is covered by water (47%) and artificial surfaces (35%) within 3 km, water (48%) and trees (27%) within 16 km, and trees (49%) and water (40%) within 80 km.
Brazil travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / N
- 127 / 220 V · 60 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $10,713
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 19.3
- per 100k, 2023
- Road deaths
- 16
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 482
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Florianopolis (-27.5967°, -48.5492°, elevation 26 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.