Ngunguru Bay – current water temperature and swimming conditions

Water Temperature in Ngunguru Bay: Daily Trends, Historical Records, and Forecast

⚠️ Water in this range feels cool but still manageable for many swimmers. Short to moderate swims are comfortable, especially in warm weather. Some people may prefer a wetsuit for longer stays, particularly when swimming actively or outside peak summer conditions.

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 Ngunguru Bay 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 Ngunguru Bay will be 18.4°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

Ngunguru Bay is a sheltered coastal area in the Northland Region, opening toward the Pacific Ocean but protected by headlands and a broad estuary. This natural setting helps moderate wave energy and can allow shallow waters to warm during settled periods. In summer, from December through February, water temperatures typically range between 19°C and 22°C, which feels comfortable for swimming on warm days. During autumn, the sea often remains around 18–20°C before gradually cooling. Winter temperatures generally sit between 14°C and 16°C, while spring sees a steady rise from roughly 15°C towards 18°C as air temperatures increase and calmer weather returns.