Reservoir · Tasmania · Australia · BOM Water Data Online
Tungatinah Lagoon
15.4% 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
2026-09-07
Current fill
15.4%vs 7 days ago
+0.1%gaining
vs 1 year ago
-9.6%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. -42.277, 146.468 · Open in Google Maps
About Tungatinah Lagoon
As of September 7, 2026, Tungatinah Lagoon is filled to 15.4% 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 held broadly steady (+0.1 pts), and it is 9.6 points below its level on the same date a year earlier.
Across the readings we hold for Tungatinah Lagoon — 1093 data points between September 11, 2023 and September 7, 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 October 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
- 15.4%
- Water stored
- 16 hm³
- Total capacity
- 103 hm³
- Usable capacity
- 44 hm³
- 7-day change
- ▲ 0.1 pts
- Year-on-year
- ▼ 9.6 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
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 15.4% | 16 |
| 6 Sep 2026 | 15.2% | 16 |
| 5 Sep 2026 | 15.1% | 15 |
| 4 Sep 2026 | 14.9% | 15 |
| 3 Sep 2026 | 14.6% | 15 |
| 2 Sep 2026 | 13.5% | 14 |
| 1 Sep 2026 | 14.4% | 15 |
| 31 Aug 2026 | 15.3% | 16 |
| 30 Aug 2026 | 17.4% | 18 |
| 29 Aug 2026 | 18.1% | 19 |
| 28 Aug 2026 | 19.4% | 20 |
| 27 Aug 2026 | 20.0% | 21 |