Mangawhai – current water temperature and swimming conditions

Water Temperature in Mangawhai: 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 Mangawhai have been on a steady rise over the past month and have continued to climb over the last week.

According to our forecast, Sea water temperature in Mangawhai will be 16.1°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

Mangawhai is a coastal settlement in the southern part of the Northland Region, offering both an ocean surf beach and a sheltered harbour. Facing the Pacific Ocean, Mangawhai Heads Beach experiences typical upper North Island sea temperatures. In summer, from December through February, water temperatures generally range between 19°C and 22°C, which feels comfortable for swimming during warm, settled weather. Autumn often remains pleasant at around 18–20°C before gradually cooling. Winter temperatures usually sit between 14°C and 16°C, while spring brings a steady warming from roughly 15°C towards 18°C as air temperatures rise and fine days become more frequent.