Reservoir Watch
Official storage levels across 281 reservoirs in 9 states and territories. Data from the Bureau of Meteorology.
Average fill
60.6%
Total volume
51.4 km³
Reservoirs
281
Critical
17
Low level
32
Australia at a glance
National average fill
60.6%
51,447 of 87,181 hm³ stored
Reservoirs
281
States/territories
9
Total capacity
87.2 km³
Volume stored
51.4 km³
Critical
17
Low level
32
Coverage: Bureau of Meteorology Water Data Online — publicly-owned storages reported under Australia's Water Regulations 2008. Last reading: 2026-07-26.
National fill — multi-year
By state & territory
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By state & territory
Sorted by capacityTasmania
40 reservoirs
Average fill
35.7%
New South Wales
59 reservoirs
Average fill
58.2%
Western Australia
25 reservoirs
Average fill
96.1%
Victoria
62 reservoirs
Average fill
63.1%
Queensland
71 reservoirs
Average fill
77.8%
New South Wales and Victoria
3 reservoirs
Average fill
55.6%
South Australia
17 reservoirs
Average fill
92.1%
Northern Territory
1 reservoir
Average fill
91.1%
Australian Capital Territory
3 reservoirs
Average fill
85.5%
All reservoirs
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Dataset coverage
Tracked
281
reservoirs
With data
281
reservoirs
Tracked capacity
87,181
hm³
Source: State water authorities — BOM · WaterNSW · Melbourne Water · SA Water · DEWS Queensland · Seqwater · Water Corporation WA
Covers reservoirs monitored by state water authorities across all territories. Data is aggregated from individual state portals.
About reservoirs in Australia
As of July 26, 2026, the reservoirs we track across Australia that report live levels hold roughly 51,447 hm³ of water — about 60.6% of their combined capacity. Taken together, Australia's reservoirs are within their normal operating range.
Across the region, 17 reservoirs are at critically low levels and 32 are low. Mary Barrage is the fullest at 105.0%, while Kroombit is the lowest at 0.9%.
Over the most recent week on record, 19 reservoirs rose and 5 reservoirs fell across Australia.
Storage figures for Australia come from BOM; the most recent reading is from July 26, 2026. Each reservoir below links to its own page with full history and seasonal context.
Australia at a glance
- Reservoirs tracked
- 281
- Average fill
- 60.6%
- Water stored
- 51,447 hm³
- Combined capacity
- 87,181 hm³
- At critically low levels
- 17
- Fullest
- Mary Barrage (105.0%)
- Lowest
- Kroombit (0.9%)
- Last updated
- July 26, 2026
Frequently asked questions
How full are reservoirs in Australia right now?
As of July 26, 2026, the reservoirs tracked in Australia that report live levels are 60.6% full overall, holding about 51,447 hm³ of water.
How many reservoirs are there in Australia?
reservoirs.earth tracks 281 reservoirs in Australia, with a combined storage capacity of 87,181 hm³.
Which reservoir in Australia is the fullest?
Mary Barrage is currently the fullest reservoir in Australia, at 105.0% of capacity.
Which reservoir in Australia is the lowest?
Kroombit is currently the lowest in Australia, at 0.9% of capacity.
Where does the reservoir data for Australia come from?
All storage figures for Australia come from BOM, an official source, last updated July 26, 2026.