Kingston – current water temperature and swimming conditions

Water Temperature in Kingston: 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 Kingston 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 Kingston will be 18.6°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

Kingston sits on the southern side of Norfolk Island, where the Pacific Ocean brings clear water and a mild subtropical climate. Sea temperatures here show a gentle seasonal swing rather than sharp changes. In summer, from December to February, the water usually reaches around 23–25 °C, which feels comfortably warm for swimming. Autumn sees temperatures ease back to about 21–23 °C, while winter is cooler but still swimmable at roughly 19–21 °C. During spring, the sea gradually warms again, typically sitting between 21–23 °C as conditions become more settled.