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Track water storage, capacity and historical trends for major reservoirs in New South Wales, Victoria, Queensland and beyond.

60.4% National average
303 Dams tracked
87,729 GL Total capacity
19 Jul 2026 Last Updated
Lake Alexandrina Water Level

Lake Alexandrina Water Level

South Australia · Unknown
Reviewed by Water Resources Analyst
Hydrological Summary: Lake Alexandrina currently stores 98.6% of its total 1,645 GL capacity. Located in SA and operated by SA Water, it is a critical water source for regional supply and irrigation.
Data officially sourced and updated from South Australia water authorities. Last dataset update: 2026-07-17 09:00:00
Current Storage Level 98.6%
Total Capacity
1,645 GL
Status
Normal / Safe
Operator
SA Water
Last Updated
17 Jul 2026
Live Weather
13°C Partly cloudy
Rain: 0mm | Hum: 77%

Water Level Analysis

Lake Alexandrina is currently operating near maximum storage limits. With current readings at 98.6%, the reservoir holds a robust 1,645 GL. This provides immense water security for the South Australia region.

Catchment & Hydrological Impact

Fed primarily by the River Murray, this reservoir plays a critical role in the Murray-Darling Basin drainage division. Hydrological health in this specific drainage basin is vital for downstream ecosystems. Catchment dynamics in the Murray-Darling Basin are deeply influenced by the retention capacity of Lake Alexandrina.

Agricultural & Economic Significance

Agriculture in the surrounding areas of South Australia depends heavily on the water security provided by Lake Alexandrina. Farmers and agribusinesses monitor these levels closely to plan their seasonal crop yields. Without the buffer provided by this massive 1,645 GL storage, regional farming would face extreme volatility.

Ecological & Recreational Context

Ecologically, the reservoir and its immediate wetlands serve as a crucial habitat for native Australian wildlife. When capacity allows, Lake Alexandrina becomes a hub for regional tourism and water sports. However, environmental flow releases must be carefully balanced to protect downstream river health.

Current Weather & Evaporation Impact

Cooler current temperatures of 13°C help minimize evaporation losses across the reservoir. With 0mm of recent rainfall and partly cloudy skies, the catchment is relatively dry today.

Future Outlook & Monitoring

The Bureau of Meteorology's climate outlooks will play a pivotal role in predicting the future inflows for this catchment. Continuous telemetry and advanced hydrological modeling are employed to forecast storage changes. Given the unpredictable nature of Australia's climate, from La Niña flooding to El Niño droughts, maintaining a dynamic operational strategy for Lake Alexandrina is absolutely essential.

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Frequently Asked Questions

What is the current water level of Lake Alexandrina?
As of the latest official reading, the water level at Lake Alexandrina is at 98.6% of its total capacity.
Is Lake Alexandrina currently full?
Yes, Lake Alexandrina is virtually full at 98.6%.
What is the maximum water capacity of Lake Alexandrina?
When completely full (100%), Lake Alexandrina can hold up to 1,645 Gigalitres (GL) of water.
Where is Lake Alexandrina located?
This reservoir is a critical water storage facility located in the state of South Australia, Australia.
How does the water level at Lake Alexandrina affect local agriculture?
Water levels dictate the irrigation allocations for surrounding farmlands. A healthy level of 98.6% ensures that local farmers have the necessary water security for their seasonal crops and livestock.
Who manages the data for Lake Alexandrina?
The data is sourced from official government authorities including the Bureau of Meteorology (BOM) and specific state water utilities.

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