Clarks Beach – current water temperature and swimming conditions

Water Temperature in Clarks Beach: Daily Trends, Historical Records, and Forecast

⚠️ This is cool water that may feel brisk on entry. Swimming is usually limited to short sessions, and prolonged stays can become uncomfortable without thermal protection. Many swimmers choose a wetsuit, especially for surfing or open-water swimming.

It’s important to note that these swimming tips and recommendations apply only in settled weather. When air temperatures drop below 20°C — and sometimes even below 25°C — swimming can feel uncomfortable, even when water temperatures are relatively high.

Water Temperature Over the Last 30 Days

Water temperatures in Clarks Beach have been gradually cooling over the past month, with a further drop recorded during the last week.

According to our forecast, Sea water temperature in Clarks Beach will be 17.8°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Sea Temperature Data

Annual Water Temperature Overview by Month

Monthly Water Temp Ranges

30°C

25°C

20°C

15°C

10°c

5°C

0°C

Annual Water Temperature Trend

Clarks Beach sits on the eastern side of the Manukau Harbour in the Auckland Region, sheltered from the open Tasman Sea by the harbour’s entrance and surrounding headlands. Because of this protected setting, water temperatures can feel slightly warmer and calmer than on exposed west coast beaches. In summer, particularly from January to March, the water generally ranges between 19 and 22°C, which is comfortable for swimming on a sunny day. Through autumn, temperatures tend to ease back to around 17 to 20°C. Winter sees cooler conditions, usually between 14 and 16°C, while spring brings a gradual rise from roughly 15 to 18°C. Shallow harbour waters can warm up quickly in settled weather, especially at high tide.