Gerroa – current water temperature and swimming conditions

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

According to our forecast, Sea water temperature in Gerroa will be 18.0°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

Gerroa sits at the southern end of Seven Mile Beach on the Illawarra coast, facing the open Tasman Sea, and water temperatures here show clear seasonal changes. In summer, the ocean usually warms to around 21–24 °C, offering comfortable conditions for swimming and long dips in the surf. Autumn often holds onto that warmth, with temperatures commonly between 19–22 °C, while spring is cooler at roughly 17–20 °C as the sea gradually heats up after winter. During winter, water temperatures typically drop to about 16–18 °C, which can feel cold without a wetsuit, especially on overcast or windy days.