State / Territory · Australia · BOM
Western Australia
87.9% average fill
Reservoirs
25
Volume stored
10,393 hm³
Total capacity
11,929 hm³
Critical
2
Low level
2
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Reservoirs
Sorted by capacityArgyle (Ord River)
Updated 2026-10-21
Wellington
Updated 2026-10-20
South Dandalup
criticalUpdated 2026-10-24
Serpentine
lowUpdated 2026-10-24
Kununurra Diversion
No dataCanning
Updated 2026-10-24
North Dandalup
Updated 2026-10-24
Harris
criticalUpdated 2026-10-20
Harding
Updated 2026-10-25
Mundaring
Updated 2026-10-24
Wungong
Updated 2026-10-24
Stirling
Updated 2026-10-20
Harvey
Updated 2026-10-20
Logue Brook
Updated 2026-10-20
Waroona
lowUpdated 2026-10-20
Victoria
Updated 2026-10-24
Samson Brook
Updated 2026-10-20
Serpentine Pipehead
Updated 2026-10-24
Drakes Brook
Updated 2026-10-20
Churchman Brook
Updated 2026-10-24
Glen Mervyn
Updated 2026-10-20
Moochalabra
Updated 2026-10-25
Ten Mile Brook
Updated 2026-10-19
Manjimup
Updated 2026-10-21
Quickup
Updated 2026-10-20
Data source: Bureau of Meteorology Water Data Online (KiWIS API). Publicly-owned storages reported under Australia's Water Regulations 2008.
About reservoirs in Western Australia
As of October 25, 2026, the reservoirs we track across Western Australia that report live levels hold roughly 10,393 hm³ of water — about 87.9% of their combined capacity. Taken together, Western Australia's reservoirs are high.
Across the region, 2 reservoirs are at critically low levels and 2 are low. Quickup is the fullest at 103.5%, while Harris is the lowest at 15.7%.
Over the most recent week on record, 2 reservoirs rose and 3 reservoirs fell across Western Australia.
Storage figures for Western Australia come from BOM; the most recent reading is from October 25, 2026. Each reservoir below links to its own page with full history and seasonal context.
Western Australia at a glance
- Reservoirs tracked
- 25
- Average fill
- 87.9%
- Water stored
- 10,393 hm³
- Combined capacity
- 11,929 hm³
- At critically low levels
- 2
- Fullest
- Quickup (103.5%)
- Lowest
- Harris (15.7%)
- Last updated
- October 25, 2026