Is it warm enough to swim in Cronulla in July? Average water temperature in Cronulla in July is 18°C and therefore is not suitable for comfortable swimming. The warmest sea in Cronulla in July is 20.2°C, and the coldest is 15.9°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Cronulla
To get an accurate forecast for the water temperature in Cronulla for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Cronulla, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of July.
Day | 2025 | 2024 | Min | Max |
---|---|---|---|---|
1 July | 18°C | 17.4°C | 17.4°C | 20.1°C |
2 July | 17.8°C | 17.6°C | 17.6°C | 20.2°C |
3 July | 18.2°C | 17.6°C | 17.3°C | 20.2°C |
4 July | 17.6°C | 17.8°C | 17.6°C | 20.2°C |
5 July | 17.5°C | 17.6°C | 17.5°C | 20.1°C |
6 July | 17.3°C | 17.7°C | 17.3°C | 19.8°C |
7 July | 17.1°C | 17.6°C | 17.1°C | 19.9°C |
8 July | 16.9°C | 17.7°C | 16.9°C | 19.5°C |
9 July | 16.9°C | 17.1°C | 16.9°C | 19.5°C |
10 July | 16.7°C | 17.1°C | 16.7°C | 19.6°C |
11 July | 16.5°C | 17.2°C | 16.5°C | 19.6°C |
12 July | 16.4°C | 17.3°C | 16.4°C | 19.4°C |
13 July | 16.1°C | 17.1°C | 16.1°C | 19.1°C |
14 July | 16.7°C | 17°C | 16.7°C | 19.1°C |
15 July | 16.4°C | 17°C | 16.4°C | 19.2°C |
Day | 2025 | 2024 | Min | Max |
---|---|---|---|---|
16 July | 16.3°C | 16.6°C | 16.3°C | 19.1°C |
17 July | 16.1°C | 16.6°C | 16.1°C | 19.2°C |
18 July | 16.3°C | 16.8°C | 16.3°C | 19.2°C |
19 July | 15.9°C | 17.1°C | 15.9°C | 19.3°C |
20 July | 16.1°C | 16.6°C | 16.1°C | 19.3°C |
21 July | 16.4°C | 16.7°C | 16.2°C | 19.4°C |
22 July | 16.5°C | 16.4°C | 16.4°C | 19.3°C |
23 July | 16.3°C | 16.3°C | 16.3°C | 19.2°C |
24 July | 16.1°C | 16.8°C | 16.1°C | 19.1°C |
25 July | 16.2°C | 16.7°C | 16.2°C | 19°C |
26 July | 16.3°C | 16.5°C | 16.3°C | 18.9°C |
27 July | 16.9°C | 16.6°C | 16.6°C | 18.8°C |
28 July | 16.3°C | 16.2°C | 16.2°C | 19.2°C |
29 July | 16.5°C | 16.1°C | 16.1°C | 19.1°C |
30 July | 16.8°C | 16.3°C | 16.2°C | 19.3°C |
31 July | 17.1°C | 16.2°C | 16.2°C | 19.5°C |
2016 | 2017 | 2018 | 2019 | 2020 |
19.2°C | 19.3°C | 17.5°C | 18.3°C | 17.6°C |
2021 | 2022 | 2023 | 2024 | 2025 |
18.2°C | 18.3°C | 17.8°C | 16.9°C | 16.7°C |
Chart comparing the height of waves in Cronulla in July 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.
You can also view information about water temperature for other months by clicking on the month button below