World sea water temperatures

Water temperature in Cooks Beach in September

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Is it warm enough to swim in Cooks Beach in September? Average water temperature in Cooks Beach in September is 14.7°C and therefore is not suitable for comfortable swimming. The warmest sea in Cooks Beach in September is 16.1°C, and the coldest is 13.9°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Cooks Beach

Changes water temperature in Cooks Beach in September 2025, 2024

To get an accurate forecast for the water temperature in Cooks 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 Cooks Beach, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of September.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
1 September14.6°C15.1°C14°C15.1°C
2 September14.5°C15.3°C13.9°C15.3°C
3 September14.4°C15.2°C13.9°C15.9°C
4 September14.4°C15.1°C14.1°C15.3°C
5 September14.4°C15°C14°C15°C
6 September 15°C14°C15°C
7 September 15.1°C14°C15.1°C
8 September 15°C14.1°C15.1°C
9 September 15°C14.2°C15°C
10 September 15°C14°C15°C
11 September 14.9°C14.2°C15.9°C
12 September 14.9°C14.2°C16°C
13 September 14.8°C14.3°C16.1°C
14 September 15°C14.3°C15.3°C
15 September 15°C14.2°C15.2°C
Day 2025 2024 Min Max
16 September 14.8°C14.5°C15.1°C
17 September 14.8°C14.5°C15.4°C
18 September 14.9°C14.6°C15.3°C
19 September 14.7°C14°C15.3°C
20 September 14.6°C14.2°C15.3°C
21 September 14.6°C14.3°C15.3°C
22 September 14.8°C14.3°C15.4°C
23 September 14.9°C13.9°C15.4°C
24 September 15°C14.4°C15.5°C
25 September 15°C14.1°C15.5°C
26 September 15°C14.3°C15.4°C
27 September 15°C14.4°C15.4°C
28 September 14.9°C14.5°C15.4°C
29 September 15°C14.4°C15.4°C
30 September 15°C14.5°C15.5°C
Cooks Beach water temp chart in September

Average water temperature in Cooks Beach in September over a decade

20152016201720182019
14.4°C14.9°C14.8°C14.6°C14.7°C
20202021202220232024
14.6°C14.6°C15.1°C14.7°C14.9°C

Cooks Beach sea state in September

Chart comparing the height of waves in Cooks 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 Cooks Beach in September

Cooks Beach water temperature during other months:

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

Where is the warm sea water in September?

Want to know where the water temperature in September is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

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

AvrMinMax
Waiheke Island14.3°C13°C15.8°C
Onetangi14.3°C13°C15.8°C
Maraetai14.2°C13°C15.8°C
Oneroa14.2°C13°C15.8°C
Auckland14.5°C13.4°C16°C
Pakuranga14.2°C13°C15.8°C
Eastern Beach14.2°C13°C15.8°C
Tamaki14.2°C13°C15.8°C
Bucklands Beach14.2°C13°C15.8°C
Manukau City14.2°C13.2°C15.7°C

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Cooks 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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