Reservoir · Tasmania · Australia · BOM Water Data Online
Lake Parangana
18.5% full
Capacity
14.8 hm³
Volume stored
3 hm³
River
Mersey Forth
Year completed
1968
Coordinates
41.650°S, 146.228°E
Last updated
2026-09-07
Current fill
18.5%vs 7 days ago
-0.3%losing
vs 1 year ago
+15.0%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: 2026-09-07.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -41.650, 146.228 · Open in Google Maps
About Lake Parangana
As of September 7, 2026, Lake Parangana is filled to 18.5% of its total capacity, holding roughly 3 hm³ of water out of a maximum 15 hm³. At this level the reservoir is critically low. Of that total, about 7 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (-0.3 pts), and it is 15.0 points above its level on the same date a year earlier.
Across the readings we hold for Lake Parangana — 1093 data points between September 11, 2023 and September 7, 2026 — the level has ranged from a low of 0.0% (February 16, 2024) to a high of 28.1% (September 2, 2024). On average the reservoir is fullest around September and at its lowest around January.
The dam at Lake Parangana was completed in 1968. It is operated by BOM primarily for water supply. It lies within the Mersey Forth Basin basin at 41.650°S, 146.228°E.
Key facts
- Current fill level
- 18.5%
- Water stored
- 3 hm³
- Total capacity
- 15 hm³
- Usable capacity
- 7 hm³
- 7-day change
- ▼ 0.3 pts
- Year-on-year
- ▲ 15.0 pts
- Primary use
- Water supply
- River
- Mersey Forth
- River basin
- Mersey Forth Basin
- Year completed
- 1968
- Operator
- BOM
- Coordinates
- 41.650°S, 146.228°E
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 18.5% | 3 |
| 6 Sep 2026 | 19.2% | 3 |
| 5 Sep 2026 | 19.2% | 3 |
| 4 Sep 2026 | 18.7% | 3 |
| 3 Sep 2026 | 16.9% | 3 |
| 2 Sep 2026 | 16.5% | 2 |
| 1 Sep 2026 | 18.7% | 3 |
| 31 Aug 2026 | 18.8% | 3 |
| 30 Aug 2026 | 19.4% | 3 |
| 29 Aug 2026 | 19.6% | 3 |
| 28 Aug 2026 | 19.7% | 3 |
| 27 Aug 2026 | 19.8% | 3 |