Reservoir · Tasmania · Australia · BOM Water Data Online
Lake Repulse
24.6% full
Capacity
15.9 hm³
Volume stored
4 hm³
River
Derwent River
Year completed
1968
Coordinates
42.496°S, 146.624°E
Last updated
2026-09-07
Current fill
24.6%vs 7 days ago
+0.9%gaining
vs 1 year ago
-0.2%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. -42.496, 146.624 · Open in Google Maps
About Lake Repulse
As of September 7, 2026, Lake Repulse is filled to 24.6% of its total capacity, holding roughly 4 hm³ of water out of a maximum 16 hm³. At this level the reservoir is low. Of that total, about 11 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.9 pts), and it sits close to where it was a year earlier.
Across the readings we hold for Lake Repulse — 1093 data points between September 11, 2023 and September 7, 2026 — the level has ranged from a low of 6.9% (May 6, 2026) to a high of 50.0% (September 2, 2024). On average the reservoir is fullest around September and at its lowest around January.
The dam at Lake Repulse was completed in 1968. It is operated by BOM primarily for water supply. It lies within the Derwent River Basin basin at 42.496°S, 146.624°E.
Key facts
- Current fill level
- 24.6%
- Water stored
- 4 hm³
- Total capacity
- 16 hm³
- Usable capacity
- 11 hm³
- 7-day change
- ▲ 0.9 pts
- Year-on-year
- ▼ 0.2 pts
- Primary use
- Water supply
- River
- Derwent River
- River basin
- Derwent River Basin
- Year completed
- 1968
- Operator
- BOM
- Coordinates
- 42.496°S, 146.624°E
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 24.6% | 4 |
| 6 Sep 2026 | 23.0% | 4 |
| 5 Sep 2026 | 23.6% | 4 |
| 4 Sep 2026 | 24.6% | 4 |
| 3 Sep 2026 | 22.4% | 4 |
| 2 Sep 2026 | 23.2% | 4 |
| 1 Sep 2026 | 24.8% | 4 |
| 31 Aug 2026 | 23.7% | 4 |
| 30 Aug 2026 | 23.6% | 4 |
| 29 Aug 2026 | 22.9% | 4 |
| 28 Aug 2026 | 23.9% | 4 |
| 27 Aug 2026 | 23.2% | 4 |