Reservoir · Tasmania · Australia · BOM Water Data Online
Lake Gairdner
76.0% full
Capacity
8.8 hm³
Volume stored
7 hm³
Coordinates
41.478°S, 146.069°E
Last updated
2026-09-07
Current fill
76.0%vs 7 days ago
+65.0%gaining
vs 1 year ago
+14.8%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: 2026-09-07.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -41.478, 146.069 · Open in Google Maps
About Lake Gairdner
As of September 7, 2026, Lake Gairdner is filled to 76.0% of its total capacity, holding roughly 7 hm³ of water out of a maximum 9 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has risen by 65.0 percentage points, and it is 14.8 points above its level on the same date a year earlier.
Across the readings we hold for Lake Gairdner — 1093 data points between September 11, 2023 and September 7, 2026 — the level has ranged from a low of 1.7% (September 1, 2026) to a high of 96.0% (September 2, 2024). On average the reservoir is fullest around December and at its lowest around August.
It is operated by BOM primarily for water supply.
Key facts
- Current fill level
- 76.0%
- Water stored
- 7 hm³
- Total capacity
- 9 hm³
- 7-day change
- ▲ 65.0 pts
- Year-on-year
- ▲ 14.8 pts
- Primary use
- Water supply
- Operator
- BOM
- Coordinates
- 41.478°S, 146.069°E
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 76.0% | 7 |
| 6 Sep 2026 | 67.6% | 6 |
| 5 Sep 2026 | 46.8% | 4 |
| 4 Sep 2026 | 28.2% | 2 |
| 3 Sep 2026 | 7.5% | 1 |
| 2 Sep 2026 | 2.1% | 0 |
| 1 Sep 2026 | 1.7% | 0 |
| 31 Aug 2026 | 11.0% | 1 |
| 30 Aug 2026 | 20.7% | 2 |
| 29 Aug 2026 | 26.8% | 2 |
| 28 Aug 2026 | 36.7% | 3 |
| 27 Aug 2026 | 46.9% | 4 |