Rockingham – current water temperature and swimming conditions

Water Temperature in Rockingham: 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 Rockingham declined overall during the past month, they have shown a noticeable rebound over the last week.

According to our forecast, Sea water temperature in Rockingham will be 18.1°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

Rockingham sits on Perth’s City Coast and is well known for its mix of open ocean beaches and sheltered bays, which makes a big difference to water conditions. Sea temperatures here are comfortable for swimming through much of the year. In summer, from December to February, the water usually ranges between 21–24°C, often feeling warm and inviting, especially in calmer areas. Autumn stays pleasant at around 19–22°C, while winter cools things down to roughly 16–18°C, which can feel brisk but is still manageable for short swims. Spring brings a steady warm-up again, generally sitting between 18–21°C as air temperatures rise and winds ease.