Water temperature in Joinville in September

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Is it warm enough to swim in Joinville in September? Average water temperature in Joinville in September is 19.6°C and therefore is not suitable for comfortable swimming. The warmest sea in Joinville in September is 22.4°C, and the coldest is 17.6°C. Average high air temperature in Joinville in September is 21°C, and average low temperature is 13°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Joinville

Changes water temperature in Joinville in September 2025, 2024

To get an accurate forecast for the water temperature in Joinville for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Joinville, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of September.

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 September	19.2°C	18.8°C	17.7°C	21°C
2 September	19.1°C	18.8°C	17.7°C	20.8°C
3 September	19.3°C	18.8°C	17.6°C	20.4°C
4 September	19.4°C	19°C	18.2°C	20.5°C
5 September	19.7°C	19.1°C	18.4°C	20.5°C
6 September	19.7°C	19.2°C	18.5°C	20.4°C
7 September	19.6°C	19.5°C	18.6°C	20.8°C
8 September		19.4°C	18.6°C	20.6°C
9 September		19.4°C	18.5°C	20.3°C
10 September		19.5°C	18.3°C	20.5°C
11 September		19.8°C	17.9°C	20.5°C
12 September		20°C	17.9°C	20.2°C
13 September		19.9°C	17.7°C	20.2°C
14 September		20.1°C	17.8°C	20.7°C
15 September		20.1°C	17.9°C	20.8°C

Day	2024	Min	Max
16 September	20.1°C	18°C	20.6°C
17 September	20.3°C	18.3°C	21.1°C
18 September	20.2°C	18.5°C	21.2°C
19 September	20.2°C	19°C	21.4°C
20 September	20.2°C	19°C	22.4°C
21 September	20.1°C	18.7°C	21.9°C
22 September	19.9°C	18.5°C	21.6°C
23 September	19.8°C	18.5°C	21.5°C
24 September	19.8°C	18.4°C	21.3°C
25 September	20.3°C	18.2°C	21.1°C
26 September	20.1°C	18.2°C	20.9°C
27 September	20.4°C	18.2°C	20.8°C
28 September	20.7°C	18.2°C	21°C
29 September	20.8°C	18.4°C	21.1°C
30 September	20.9°C	18.8°C	21.3°C

Average water temperature in Joinville in September over a decade

2015	2016	2017	2018	2019
20.4°C	19.5°C	20.6°C	19.9°C	19.5°C

2020	2021	2022	2023	2024
19.5°C	19.7°C	19.4°C	20.2°C	19.8°C

Joinville sea state in September

Chart comparing the height of waves in Joinville in September over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Weather and climate in Joinville in September

This data display average monthly climate indicators in Joinville in September based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

Average HIGH temperature21°C
Average LOW temperature13°C

Joinville water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

The nearest locations with the average water temperature in September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Sao Francisco do Sul	19.7°C	17.5°C	22.6°C
Itapoa	19.9°C	17.4°C	23°C
Picarras	19.5°C	17.2°C	22.5°C
Penha	19.4°C	17.2°C	22.5°C
Caioba	20.1°C	17.6°C	23.2°C
Itajai	19.3°C	17.1°C	22.3°C
Navegantes	19.3°C	17.1°C	22.3°C
Matinhos	20.1°C	17.6°C	23.4°C
Balneario Camboriu	19.3°C	17.1°C	22.2°C
Praia do Estaleiro	19.3°C	17°C	22.1°C

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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.

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Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature