Reservoir · Tasmania · Australia · BOM Water Data Online
Lake Mackintosh
14.0% full
Capacity
913.7 hm³
Volume stored
128 hm³
River
Mackintosh River
Year completed
1980
Coordinates
41.633°S, 145.739°E
Last updated
2026-07-27
Current fill
14.0%vs 7 days ago
+0.6%gaining
vs 1 year ago
+1.3%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: 2026-07-27.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -41.633, 145.739 · Open in Google Maps
About Lake Mackintosh
As of July 27, 2026, Lake Mackintosh is filled to 14.0% of its total capacity, holding roughly 128 hm³ of water out of a maximum 914 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (+0.6 pts), and it is 1.3 points above its level on the same date a year earlier.
Across the readings we hold for Lake Mackintosh — 1094 data points between July 30, 2023 and July 27, 2026 — the level has ranged from a low of 7.4% (July 11, 2026) to a high of 32.2% (August 30, 2024). On average the reservoir is fullest around October and at its lowest around June.
The dam at Lake Mackintosh was completed in 1980. It is operated by BOM primarily for water supply. It lies within the Mackintosh River Basin basin at 41.633°S, 145.739°E.
Key facts
- Current fill level
- 14.0%
- Water stored
- 128 hm³
- Total capacity
- 914 hm³
- 7-day change
- ▲ 0.6 pts
- Year-on-year
- ▲ 1.3 pts
- Primary use
- Water supply
- River
- Mackintosh River
- River basin
- Mackintosh River Basin
- Year completed
- 1980
- Operator
- BOM
- Coordinates
- 41.633°S, 145.739°E
- Last updated
- July 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Jul 2026 | 14.0% | 128 |
| 26 Jul 2026 | 13.4% | 122 |
| 25 Jul 2026 | 11.9% | 109 |
| 24 Jul 2026 | 9.8% | 90 |
| 23 Jul 2026 | 9.4% | 86 |
| 22 Jul 2026 | 9.2% | 84 |
| 21 Jul 2026 | 9.6% | 87 |
| 20 Jul 2026 | 10.1% | 92 |
| 19 Jul 2026 | 10.5% | 96 |
| 18 Jul 2026 | 10.9% | 99 |
| 17 Jul 2026 | 11.1% | 101 |
| 16 Jul 2026 | 11.1% | 102 |
Frequently asked questions
What is the current water level of Lake Mackintosh?
As of July 27, 2026, Lake Mackintosh is at 14.0% of its capacity, holding approximately 128 hm³ of water, according to BOM data.
Is Lake Mackintosh reservoir full?
No. As of July 27, 2026, Lake Mackintosh is critically low at 14.0% of its capacity, so it is not full.
Is the water level at Lake Mackintosh rising or falling?
The level at Lake Mackintosh has been broadly stable over the latest week on record (+0.6 points).
How much water can Lake Mackintosh hold?
Lake Mackintosh has a total capacity of 914 hm³.
Where is Lake Mackintosh reservoir located?
Lake Mackintosh is located in Tasmania, Australia, within the Mackintosh River Basin basin (coordinates 41.633°S, 145.739°E).
When was Lake Mackintosh dam built?
The dam at Lake Mackintosh was completed in 1980.
What is Lake Mackintosh used for?
Lake Mackintosh is used primarily for water supply, and is managed by BOM.