Reservoir · Tasmania · Australia · BOM Water Data Online
Lake Augusta
13.0% full
Capacity
23.5 hm³
Volume stored
3 hm³
River
Ouse River
Year completed
1953
Coordinates
41.854°S, 146.531°E
Last updated
2026-07-28
Current fill
13.0%vs 7 days ago
0.0%stable
vs 1 year ago
+6.5%year-over-year
7-day trend
→stable
Data source: Bureau of Meteorology — Water Data Online (KiWIS) — daily mean storage volume, quality-controlled. Capacity from the BOM Water Storages ArcGIS layer (total design capacity in ML). Last reading: 2026-07-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -41.854, 146.531 · Open in Google Maps
About Lake Augusta
As of July 28, 2026, Lake Augusta is filled to 13.0% of its total capacity, holding roughly 3 hm³ of water out of a maximum 24 hm³. At this level the reservoir is critically low. Of that total, about 21 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 6.5 points above its level on the same date a year earlier.
Across the readings we hold for Lake Augusta — 1095 data points between July 30, 2023 and July 28, 2026 — the level has ranged from a low of 3.4% (February 2, 2026) to a high of 99.3% (September 2, 2024). On average the reservoir is fullest around September and at its lowest around February.
The dam at Lake Augusta was completed in 1953. It is operated by BOM primarily for water supply. It lies within the Ouse River Basin basin at 41.854°S, 146.531°E.
Key facts
- Current fill level
- 13.0%
- Water stored
- 3 hm³
- Total capacity
- 24 hm³
- Usable capacity
- 21 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 6.5 pts
- Primary use
- Water supply
- River
- Ouse River
- River basin
- Ouse River Basin
- Year completed
- 1953
- Operator
- BOM
- Coordinates
- 41.854°S, 146.531°E
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 13.0% | 3 |
| 27 Jul 2026 | 13.0% | 3 |
| 26 Jul 2026 | 16.0% | 4 |
| 25 Jul 2026 | 18.9% | 4 |
| 24 Jul 2026 | 24.7% | 6 |
| 23 Jul 2026 | 32.3% | 8 |
| 22 Jul 2026 | 38.3% | 9 |
| 21 Jul 2026 | 44.0% | 10 |
| 20 Jul 2026 | 49.5% | 12 |
| 19 Jul 2026 | 54.0% | 13 |
| 18 Jul 2026 | 57.7% | 14 |
| 17 Jul 2026 | 60.3% | 14 |
Frequently asked questions
What is the current water level of Lake Augusta?
As of July 28, 2026, Lake Augusta is at 13.0% of its capacity, holding approximately 3 hm³ of water, according to BOM data.
Is Lake Augusta reservoir full?
No. As of July 28, 2026, Lake Augusta is critically low at 13.0% of its capacity, so it is not full.
Is the water level at Lake Augusta rising or falling?
The level at Lake Augusta has been broadly stable over the latest week on record (0.0 points).
How much water can Lake Augusta hold?
Lake Augusta has a total capacity of 24 hm³, of which about 21 hm³ is usable storage.
Where is Lake Augusta reservoir located?
Lake Augusta is located in Tasmania, Australia, within the Ouse River Basin basin (coordinates 41.854°S, 146.531°E).
When was Lake Augusta dam built?
The dam at Lake Augusta was completed in 1953.
What is Lake Augusta used for?
Lake Augusta is used primarily for water supply, and is managed by BOM.