Water temperature in Avoca Beach in September

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Is it warm enough to swim in Avoca Beach in September? Average water temperature in Avoca Beach in September is 17.8°C and therefore is not suitable for comfortable swimming. The warmest sea in Avoca Beach in September is 19.7°C, and the coldest is 16.2°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Avoca Beach

Changes water temperature in Avoca Beach in September 2025, 2024

To get an accurate forecast for the water temperature in Avoca Beach for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Avoca Beach, 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	18.1°C	18.1°C	16.3°C	18.4°C
2 September	17.7°C	17.2°C	16.2°C	18.4°C
3 September	17.7°C	17.3°C	16.2°C	18.5°C
4 September	17.5°C	17.5°C	16.3°C	18.4°C
5 September	17.8°C	17.8°C	16.3°C	18.4°C
6 September	18.2°C	17.6°C	16.6°C	18.7°C
7 September	18.2°C	17.4°C	16.4°C	18.7°C
8 September	18.3°C	17.9°C	16.6°C	18.9°C
9 September	18.4°C	17.6°C	16.6°C	19.2°C
10 September	18.2°C	18°C	16.5°C	19.2°C
11 September	18°C	18.1°C	16.7°C	19.4°C
12 September	18°C	18.1°C	16.8°C	19.3°C
13 September	17.6°C	17.8°C	16.7°C	19.1°C
14 September	18.2°C	17.8°C	16.4°C	18.9°C
15 September	18.3°C	18.3°C	16.7°C	18.9°C

Day	2025	2024	Min	Max
16 September	18.5°C	18.5°C	17°C	18.8°C
17 September	18.8°C	18.6°C	17°C	18.8°C
18 September	18.7°C	18.2°C	17°C	19.2°C
19 September	18.9°C	18.3°C	17.1°C	18.9°C
20 September	19°C	18.2°C	17.2°C	19°C
21 September	18.8°C	18.7°C	17°C	18.8°C
22 September	19.6°C	18.5°C	17.1°C	19.6°C
23 September	19.1°C	18.6°C	17.2°C	19.1°C
24 September	19.7°C	18.6°C	17.4°C	19.7°C
25 September		18.6°C	17.5°C	19.7°C
26 September		18.5°C	17.3°C	19.4°C
27 September		18.6°C	17.1°C	19.2°C
28 September		18.9°C	16.8°C	19.4°C
29 September		19.1°C	17.4°C	19.4°C
30 September		18.8°C	17.5°C	19.5°C

Avoca Beach water temp chart in September

Average water temperature in Avoca Beach in September over a decade

2015	2016	2017	2018	2019
18.6°C	18.2°C	18.4°C	17°C	17.6°C

2020	2021	2022	2023	2024
17.6°C	17.5°C	17.5°C	18.2°C	18.2°C

Avoca Beach sea state in September

Chart comparing the height of waves in Avoca Beach 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.

Waves height in Avoca Beach in September

Avoca Beach 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
Wamberal	17.9°C	16.4°C	19.8°C
Killcare	17.6°C	16°C	19.6°C
Toowoon Bay	17.9°C	16.4°C	19.9°C
Bateau Bay	17.9°C	16.4°C	19.9°C
Whale Beach	17.7°C	16°C	19.6°C
Bilgola Beach	17.7°C	15.9°C	19.7°C
Palm Beach	17.7°C	15.9°C	19.7°C
Avalon Beach	17.7°C	15.9°C	19.7°C
Newport	17.7°C	15.9°C	19.9°C
Mona Vale	17.7°C	15.9°C	19.9°C

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Our report for Avoca Beach 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