Reservoir · Tasmania · Australia · BOM Water Data Online
Lake Catagunya
4.3% full
Capacity
25.6 hm³
Volume stored
1 hm³
River
Derwent River
Year completed
1962
Coordinates
42.438°S, 146.562°E
Last updated
2026-06-09
Current fill
4.3%vs 7 days ago
-1.2%losing
vs 1 year ago
-11.7%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: 2026-06-09.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -42.438, 146.562 · Open in Google Maps
About Lake Catagunya
As of June 9, 2026, Lake Catagunya is filled to 4.3% of its total capacity, holding roughly 1 hm³ of water out of a maximum 26 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (-1.2 pts), and it is 11.7 points below its level on the same date a year earlier.
Across the readings we hold for Lake Catagunya — 1090 data points between June 12, 2023 and June 9, 2026 — the level has ranged from a low of 0.8% (December 3, 2024) to a high of 29.0% (September 2, 2024). On average the reservoir is fullest around September and at its lowest around June.
The dam at Lake Catagunya was completed in 1962. It is operated by BOM primarily for water supply. It lies within the Derwent River Basin basin at 42.438°S, 146.562°E.
Key facts
- Current fill level
- 4.3%
- Water stored
- 1 hm³
- Total capacity
- 26 hm³
- 7-day change
- ▼ 1.2 pts
- Year-on-year
- ▼ 11.7 pts
- Primary use
- Water supply
- River
- Derwent River
- River basin
- Derwent River Basin
- Year completed
- 1962
- Operator
- BOM
- Coordinates
- 42.438°S, 146.562°E
- Last updated
- June 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Jun 2026 | 4.3% | 1 |
| 8 Jun 2026 | 5.5% | 1 |
| 7 Jun 2026 | 7.4% | 2 |
| 6 Jun 2026 | 8.0% | 2 |
| 5 Jun 2026 | 7.4% | 2 |
| 4 Jun 2026 | 7.1% | 2 |
| 3 Jun 2026 | 10.4% | 3 |
| 2 Jun 2026 | 13.1% | 3 |
| 1 Jun 2026 | 7.6% | 2 |
| 31 May 2026 | 7.9% | 2 |
| 30 May 2026 | 11.4% | 3 |
| 29 May 2026 | 13.2% | 3 |
Frequently asked questions
What is the current water level of Lake Catagunya?
As of June 9, 2026, Lake Catagunya is at 4.3% of its capacity, holding approximately 1 hm³ of water, according to BOM data.
Is Lake Catagunya reservoir full?
No. As of June 9, 2026, Lake Catagunya is critically low at 4.3% of its capacity, so it is not full.
Is the water level at Lake Catagunya rising or falling?
The level at Lake Catagunya has been broadly stable over the latest week on record (-1.2 points).
How much water can Lake Catagunya hold?
Lake Catagunya has a total capacity of 26 hm³.
Where is Lake Catagunya reservoir located?
Lake Catagunya is located in Tasmania, Australia, within the Derwent River Basin basin (coordinates 42.438°S, 146.562°E).
When was Lake Catagunya dam built?
The dam at Lake Catagunya was completed in 1962.
What is Lake Catagunya used for?
Lake Catagunya is used primarily for water supply, and is managed by BOM.