Water temperature in Joinville

This data the coastal Joinville 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 Joinville

Water temperature in Joinville today is 20.2°C. Based on our historical data over a period of ten years, the warmest water in this day in Joinville was recorded in 2017 and was 20.8°C, and the coldest was recorded in 2013 at 18.2°C. Sea water temperature in Joinville is expected to rise to 20.7°C in the next 10 days. September average water temperature in Joinville is 19.6°C, the minimum temperature is 17.6°C, and the maximum is 22.4°C.

The swimming season in Joinville lasts from September to June. During those months, Joinville water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Joinville in winter reaches 19°C, in spring 21.3°C, in summer the average temperature rises to 26.2°C, and in autumn it is 24.5°C.

Joinville water temperature now

The sea salinity in Joinville is 33.55‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Joinville 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 Joinville. 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 Joinville. Data in table shown for 27 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Joinville

Joinville weather forecast

Current temperature and weather

Data in a table show Joinville temperature today (27 September 2025). For more information and forecast for a few days, go to the weather forecast Joinville.

0-3 h	3-6 h	6-9 h	9-12 h
13.9°C	13.7°C	14.6°C	19.6°C

12-15 h	15-18 h	18-21 h	21-24 h
20.7°C	19.2°C	15.8°C	14.6°C

Joinville water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Joinville. 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 Joinville 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 Joinville

The nearest beaches and cities from Joinville 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
Sao Francisco do Sul	19.9°C	20°C		0.65 m
Itapoa	20.1°C	21°C		0.73 m
Picarras	20.2°C	20°C		1.04 m
Penha	20.2°C	20°C		0.99 m
Caioba	20.8°C	21°C		0.58 m
Itajai	19.9°C	20°C		1.1 m
Navegantes	19.9°C	20°C		1.1 m
Matinhos	20.8°C	21°C		0.97 m
Balneario Camboriu	19.9°C	20°C		1.1 m
Praia do Estaleiro	19.8°C	20°C		1.01 m

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Our report for Joinville 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.