Busselton – current water temperature and swimming conditions

Water Temperature in Busselton: Daily Trends, Historical Records, and Forecast

⚠️ This is cool water that may feel brisk on entry. Swimming is usually limited to short sessions, and prolonged stays can become uncomfortable without thermal protection. Many swimmers choose a wetsuit, especially for surfing or open-water swimming.

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

While water temperatures in Busselton declined overall during the past month, they have shown a noticeable rebound over the last week.

According to our forecast, Sea water temperature in Busselton will be 17.8°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

Busselton sits along the sheltered waters of Geographe Bay on the Perth South Coast, and that protection gives it some of the warmest and calmest sea conditions in southern Western Australia. Water temperatures are very swimmer-friendly for much of the year. In summer, from December to February, the sea typically ranges between 21–24°C, often feeling warm and inviting, especially on still mornings. Autumn remains comfortable at around 19–22°C, while winter cools to roughly 15–17°C, which is still manageable for short swims. Spring brings a steady warm-up again, usually sitting between 17–20°C as air temperatures rise.