West Island – current water temperature and swimming conditions

Water Temperature in West Island: Daily Trends, Historical Records, and Forecast

✅ This is warm water that suits almost everyone. Swimming feels easy and pleasant, even for extended stays, and there is little risk of discomfort from cooling. These temperatures are ideal for family swimming, snorkelling, and most water activities, offering a good balance between comfort and refreshment.

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

Over the past 30 days, water temperatures in West Island have generally increased, although a slight cooling trend has set in over the last week.

According to our forecast, Sea water temperature in West Island will be 26.9°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

West Island is the main settlement on the Cocos (Keeling) Islands, set within a tropical atoll in the eastern Indian Ocean where warm, clear water surrounds the coastline year-round. Sea temperatures here are very stable compared with mainland Australia. During the drier months, roughly from May to October, the water usually sits around 26–27 °C, which feels comfortably warm for swimming at any time of day. In the wetter season, from November to April, temperatures often rise slightly to about 27–29 °C. There is no cold season as such, and even in overcast or breezy weather the sea remains pleasantly warm.