Adelaide's metropolitan beachgoers have received their most encouraging water quality update in months, with the latest algal bloom monitoring showing significant improvements. The results, released by health authorities, indicate that several popular city beaches are now considered safe for swimming after a prolonged period of caution.
Significant Improvement in Water Test Results
The latest data, current as of Tuesday, 16 December 2025, marks a positive turn for coastal recreation. SA Health has officially lifted its algal bloom warning for key metropolitan beaches including Glenelg, Henley Beach, and West Beach. This decision follows consecutive water samples that showed algal cell counts had fallen well below the threshold levels that trigger public health alerts.
Authorities have confirmed that the water at these locations is now suitable for all recreational activities. This is the first time in several weeks that such a broad clearance has been issued for the city's coastline. The improvement is attributed to recent weather patterns, including cooler temperatures and favourable coastal currents, which have helped disperse the concentrated bloom.
Ongoing Caution for Some Areas
While the news is largely positive, the update did not give the all-clear for every beach. A precautionary warning remains in place for the Port River estuary and Barker Inlet. These areas, known for slower water flow, continue to show elevated levels of blue-green algae, specifically the species Nodularia spumigena.
Health officials urge the public to avoid direct contact with the water in these specific locations. Exposure to the algae can cause skin irritations, sore eyes, and, if swallowed, gastrointestinal issues. Warning signs are still posted in these areas to inform the community.
The Environment Protection Authority (EPA) continues its regular surveillance, taking water samples twice weekly from over twenty metropolitan and suburban coastal sites. This rigorous monitoring program is designed to provide timely information to protect public health.
Looking Ahead and Safety Advice
The situation remains dynamic, and authorities caution that conditions can change rapidly. Algal blooms are highly dependent on environmental factors like water temperature, nutrient availability, and weather. Residents are advised to always check the latest SA Health or EPA alerts before heading to the water.
For those visiting cleared beaches, the standard safety advice applies: do not swim if the water looks discoloured, murky, or has a visible scum, and always shower after swimming in any natural water body. The public is also encouraged to report any suspicious water discolouration directly to the EPA.
This update provides a welcome respite for locals and tourists hoping to enjoy Adelaide's famous summer coastline. The improved results are a testament to the effectiveness of ongoing monitoring and the natural variability of coastal ecosystems.
