Whites Bay – current water temperature and swimming conditions

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

❌ This is very cold water, causing an immediate cold shock response for most people. Swimming is not recommended without a wetsuit, and even with protection, time in the water should be limited. These temperatures are typically suited only to trained or well-prepared swimmers.

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 Whites Bay 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 Whites Bay will be 12.2°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

Whites Bay is a popular beach in the Marlborough Region, set within a curved bay that opens to Cook Strait. Although the headlands provide some shelter, the water is still influenced by tidal flow and offshore swells moving through the strait. In winter, from June to August, sea temperatures generally range between 9–12°C, which feels distinctly cold and is usually only comfortable for hardy swimmers or those wearing full wetsuits. Through spring, temperatures gradually lift to around 11–14°C. Summer, from December to March, brings the mildest conditions, with water temperatures commonly sitting between 15–18°C during settled, sunny spells. Early autumn can still see 14–16°C before cooling again as winter approaches.