Water temperature in Florianopolis

This data the coastal Florianopolis sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Florianopolis

Water temperature in Florianopolis today is 18.6°C. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Florianopolis was recorded in 2017 and was 20°C, and the coldest was recorded in 2019 at 17.3°C. Sea water temperature in Florianopolis is expected to rise to 19°C in the next 10 days. September average water temperature in Florianopolis is 19°C, the minimum temperature is 16.9°C, and the maximum is 22.8°C.

The swimming season in Florianopolis lasts from September to June. During those months, Florianopolis water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Florianopolis in winter reaches 18.4°C, in spring 20.6°C, in summer the average temperature rises to 25.3°C, and in autumn it is 23.7°C.

Florianopolis water temperature now

The sea salinity in Florianopolis is 34.48‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Florianopolis for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Florianopolis. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Florianopolis. Data in table shown for 7 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Florianopolis

Florianopolis weather forecast

Current temperature and weather

Data in a table show Florianopolis temperature today (7 September 2025). For more information and forecast for a few days, go to the weather forecast Florianopolis.

0-3 h	3-6 h	6-9 h	9-12 h
13°C	12.4°C	12.4°C	13.1°C

12-15 h	15-18 h	18-21 h	21-24 h
14°C	14.6°C	14.6°C	14.8°C

Florianopolis water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Florianopolis. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Florianopolis on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Florianopolis

The nearest beaches and cities from Florianopolis with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Mole Beach	18.6°C	15°C		1.03 m
Barra da Lagoa	18.6°C	15°C		1.03 m
Joaquina Beach	18.6°C	15°C		1.03 m
Lagoa da Conceicao	18.7°C	15°C		1.03 m
Santa Catarina Island	18.5°C	15°C		1.07 m
Praia dos Ingleses	18.7°C	16°C		1.13 m
Santinho	18.7°C	16°C		1.13 m
Campeche Beach	18.5°C	15°C		1.07 m
Campeche Island	18.5°C	15°C		1.07 m
Canasvieiras	18.8°C	16°C		0.79 m

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Our report for Florianopolis is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.