Nepean Bay water temperature
Nepean Bay, American River (Kangaroo Island) · Sea/Coast
The current water temperature at Nepean Bay is 16.9 °C (as of October 16, 2026, source: IMOS / SARDI).
The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.
Measurement series & statistics
This measurement series includes 156 data points since September 25, 2026.
Lowest recorded value: 15.4 °C on September 27, 2026 · highest value: 16.9 °C on October 11, 2026.
In October, temperatures have ranged between 15.5 °C and 16.9 °C.
The current value is 0.7 °C above the October average of this series.
Nearby waters
Frequently asked questions
Can you swim at Nepean Bay right now?
The current water temperature is 16.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Nepean Bay?
Currently 16.9 °C (updated continuously).
How warm is at Nepean Bay in October?
In October, the water temperature recently averaged 16.2 °C.
