Wainui Bay – current water temperature and swimming conditions

Water Temperature in Wainui 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 Wainui 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 Wainui Bay will be 19.2°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

Wainui Bay is a small, sheltered bay in the Far North of the Northland Region, opening to the Pacific Ocean but offering more protection than fully exposed stretches of coastline. Owing to its northern location, sea temperatures here are relatively mild by New Zealand standards. In summer, from December through February, water temperatures typically range between 19°C and 22°C, making swimming comfortable on warm days. During autumn, the sea often remains around 18–20°C before gradually cooling. Winter temperatures usually drop to between 14°C and 16°C, while spring brings a steady rise from roughly 15°C towards 18°C as conditions become more settled.