Reservoir · Tasmania · Australia · BOM Water Data Online
Tungatinah Lagoon
15.1% full
Capacity
102.6 hm³
Volume stored
16 hm³
River
Nive Marsh Rivulet
Year completed
1952
Coordinates
42.277°S, 146.468°E
Last updated
2026-07-28
Current fill
15.1%vs 7 days ago
+2.8%gaining
vs 1 year ago
-7.4%year-over-year
7-day trend
↑rising
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. -42.277, 146.468 · Open in Google Maps
About Tungatinah Lagoon
As of July 28, 2026, Tungatinah Lagoon is filled to 15.1% of its total capacity, holding roughly 16 hm³ of water out of a maximum 103 hm³. At this level the reservoir is critically low. Of that total, about 44 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 2.8 percentage points, and it is 7.4 points below its level on the same date a year earlier.
Across the readings we hold for Tungatinah Lagoon — 1095 data points between July 30, 2023 and July 28, 2026 — the level has ranged from a low of 0.7% (February 21, 2024) to a high of 42.5% (October 28, 2025). On average the reservoir is fullest around September and at its lowest around March.
The dam at Tungatinah Lagoon was completed in 1952. It is operated by BOM primarily for water supply. It lies within the Nive Marsh Rivulet Basin basin at 42.277°S, 146.468°E.
Key facts
- Current fill level
- 15.1%
- Water stored
- 16 hm³
- Total capacity
- 103 hm³
- Usable capacity
- 44 hm³
- 7-day change
- ▲ 2.8 pts
- Year-on-year
- ▼ 7.4 pts
- Primary use
- Water supply
- River
- Nive Marsh Rivulet
- River basin
- Nive Marsh Rivulet Basin
- Year completed
- 1952
- Operator
- BOM
- Coordinates
- 42.277°S, 146.468°E
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 15.1% | 16 |
| 27 Jul 2026 | 12.3% | 13 |
| 26 Jul 2026 | 11.1% | 11 |
| 25 Jul 2026 | 10.1% | 10 |
| 24 Jul 2026 | 9.0% | 9 |
| 23 Jul 2026 | 9.7% | 10 |
| 22 Jul 2026 | 11.1% | 11 |
| 21 Jul 2026 | 11.5% | 12 |
| 20 Jul 2026 | 12.6% | 13 |
| 19 Jul 2026 | 13.4% | 14 |
| 18 Jul 2026 | 14.4% | 15 |
| 17 Jul 2026 | 13.9% | 14 |
Frequently asked questions
What is the current water level of Tungatinah Lagoon?
As of July 28, 2026, Tungatinah Lagoon is at 15.1% of its capacity, holding approximately 16 hm³ of water, according to BOM data.
Is Tungatinah Lagoon reservoir full?
No. As of July 28, 2026, Tungatinah Lagoon is critically low at 15.1% of its capacity, so it is not full.
Is the water level at Tungatinah Lagoon rising or falling?
The level at Tungatinah Lagoon is rising — it gained 2.8 percentage points over the latest week on record.
How much water can Tungatinah Lagoon hold?
Tungatinah Lagoon has a total capacity of 103 hm³, of which about 44 hm³ is usable storage.
Where is Tungatinah Lagoon reservoir located?
Tungatinah Lagoon is located in Tasmania, Australia, within the Nive Marsh Rivulet Basin basin (coordinates 42.277°S, 146.468°E).
When was Tungatinah Lagoon dam built?
The dam at Tungatinah Lagoon was completed in 1952.
What is Tungatinah Lagoon used for?
Tungatinah Lagoon is used primarily for water supply, and is managed by BOM.