Water temperature in Follonica in September

Is it warm enough to swim in Follonica in September? Average water temperature in Follonica in September is 23.8°C and therefore suitable for comfortable swimming. The warmest sea in Follonica in September is 27.6°C, and the coldest is 20.9°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Follonica

Changes water temperature in Follonica in September 2025, 2024

To get an accurate forecast for the water temperature in Follonica for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Follonica, 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	25.1°C	27.6°C	23.6°C	27.6°C
2 September	24.9°C	27.3°C	23.5°C	27.3°C
3 September	24.4°C	27°C	23.4°C	27°C
4 September	24.6°C	26.8°C	23.2°C	26.8°C
5 September	24.7°C	26.6°C	22.6°C	26.6°C
6 September		26.5°C	22.6°C	26.5°C
7 September		26.2°C	22.9°C	26.5°C
8 September		26.4°C	22.6°C	26.5°C
9 September		26.4°C	22.6°C	26.4°C
10 September		26.2°C	22.6°C	26.3°C
11 September		26.4°C	22.7°C	26.4°C
12 September		25.7°C	22.5°C	26.1°C
13 September		25.4°C	22.5°C	25.9°C
14 September		25.2°C	22.5°C	25.8°C
15 September		24.6°C	22.5°C	26°C

Day	2024	Min	Max
16 September	24.2°C	22.5°C	26.2°C
17 September	23.9°C	22.4°C	25.7°C
18 September	23.2°C	22.3°C	25.5°C
19 September	23.4°C	22.2°C	25.2°C
20 September	23.3°C	22°C	25.2°C
21 September	22.5°C	22°C	25.4°C
22 September	22.6°C	21.9°C	25.2°C
23 September	22.4°C	21.9°C	25°C
24 September	22.8°C	21.7°C	24.9°C
25 September	22.7°C	21.7°C	24.3°C
26 September	22.8°C	21.7°C	23.7°C
27 September	22.6°C	21.2°C	23.9°C
28 September	22.5°C	21.1°C	23.7°C
29 September	22.6°C	21.1°C	23.6°C
30 September	22.4°C	20.9°C	23.7°C

Average water temperature in Follonica in September over a decade

2015	2016	2017	2018	2019
23.5°C	23.8°C	22.8°C	24.9°C	24.1°C

2020	2021	2022	2023	2024
24.5°C	24°C	25.1°C	23.9°C	24.6°C

Follonica sea state in September

Chart comparing the height of waves in Follonica 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.

Follonica 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
Rio Marina	23.9°C	21°C	28.1°C
Piombino	23.8°C	20.9°C	27.5°C
Porto Azzurro	23.9°C	21.1°C	28.1°C
Punta Ala	23.7°C	20.8°C	27.1°C
Cala Violina	23.7°C	20.8°C	26.9°C
Rocchette	23.7°C	20.8°C	27.1°C
Baratti	23.8°C	21°C	27.6°C
Portoferraio	24°C	21.1°C	28.1°C
Riva del Sole	23.7°C	20.8°C	27°C
Castiglione della Pescaia	23.7°C	20.8°C	27.1°C

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Our report for Follonica 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