Reservoir · Tasmania · Australia · BOM Water Data Online
Lake Pieman
38.1% full
Capacity
300.2 hm³
Volume stored
114 hm³
Year completed
1986
Coordinates
41.785°S, 145.214°E
Last updated
2026-07-27
Current fill
38.1%vs 7 days ago
-1.8%losing
vs 1 year ago
+25.0%year-over-year
7-day trend
↓falling
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: 2026-07-27.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -41.785, 145.214 · Open in Google Maps
About Lake Pieman
As of July 27, 2026, Lake Pieman is filled to 38.1% of its total capacity, holding roughly 114 hm³ of water out of a maximum 300 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has fallen by 1.8 percentage points, and it is 25.0 points above its level on the same date a year earlier.
Across the readings we hold for Lake Pieman — 1094 data points between July 30, 2023 and July 27, 2026 — the level has ranged from a low of 2.9% (June 10, 2026) to a high of 54.3% (September 2, 2024). On average the reservoir is fullest around September and at its lowest around June.
The dam at Lake Pieman was completed in 1986. It is operated by BOM primarily for water supply.
Key facts
- Current fill level
- 38.1%
- Water stored
- 114 hm³
- Total capacity
- 300 hm³
- 7-day change
- ▼ 1.8 pts
- Year-on-year
- ▲ 25.0 pts
- Primary use
- Water supply
- Year completed
- 1986
- Operator
- BOM
- Coordinates
- 41.785°S, 145.214°E
- Last updated
- July 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Jul 2026 | 38.1% | 114 |
| 26 Jul 2026 | 39.9% | 120 |
| 25 Jul 2026 | 37.7% | 113 |
| 24 Jul 2026 | 30.2% | 91 |
| 23 Jul 2026 | 26.8% | 80 |
| 22 Jul 2026 | 22.0% | 66 |
| 21 Jul 2026 | 20.7% | 62 |
| 20 Jul 2026 | 22.3% | 67 |
| 19 Jul 2026 | 23.8% | 71 |
| 18 Jul 2026 | 24.9% | 75 |
| 17 Jul 2026 | 26.6% | 80 |
| 16 Jul 2026 | 27.6% | 83 |
Frequently asked questions
What is the current water level of Lake Pieman?
As of July 27, 2026, Lake Pieman is at 38.1% of its capacity, holding approximately 114 hm³ of water, according to BOM data.
Is Lake Pieman reservoir full?
No. As of July 27, 2026, Lake Pieman is low at 38.1% of its capacity, so it is not full.
Is the water level at Lake Pieman rising or falling?
The level at Lake Pieman is falling — it dropped 1.8 percentage points over the latest week on record.
How much water can Lake Pieman hold?
Lake Pieman has a total capacity of 300 hm³.
Where is Lake Pieman reservoir located?
Lake Pieman is located in Tasmania, Australia (coordinates 41.785°S, 145.214°E).
When was Lake Pieman dam built?
The dam at Lake Pieman was completed in 1986.
What is Lake Pieman used for?
Lake Pieman is used primarily for water supply, and is managed by BOM.