Reservoir · Victoria · Australia · BOM Water Data Online
Thomson
62.0% full
Capacity
1,123.1 hm³
Volume stored
696 hm³
River
Thomson River
Year completed
1984
Coordinates
37.780°S, 146.364°E
Last updated
2026-07-27
Current fill
62.0%vs 7 days ago
0.0%stable
vs 1 year ago
+0.3%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. -37.780, 146.364 · Open in Google Maps
About Thomson
As of July 27, 2026, Thomson is filled to 62.0% of its total capacity, holding roughly 696 hm³ of water out of a maximum 1,123 hm³. At this level the reservoir is within its normal operating range. Of that total, about 1,068 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it sits close to where it was a year earlier.
Across the readings we hold for Thomson — 1062 data points between July 30, 2023 and July 27, 2026 — the level has ranged from a low of 60.7% (June 29, 2026) to a high of 95.3% (January 13, 2024). On average the reservoir is fullest around November and at its lowest around June.
The dam at Thomson was completed in 1984. It is operated by BOM primarily for water supply. It lies within the Thomson River Basin basin at 37.780°S, 146.364°E.
Key facts
- Current fill level
- 62.0%
- Water stored
- 696 hm³
- Total capacity
- 1,123 hm³
- Usable capacity
- 1,068 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 0.3 pts
- Primary use
- Water supply
- River
- Thomson River
- River basin
- Thomson River Basin
- Year completed
- 1984
- Operator
- BOM
- Coordinates
- 37.780°S, 146.364°E
- Last updated
- July 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Jul 2026 | 62.0% | 696 |
| 26 Jul 2026 | 62.0% | 696 |
| 25 Jul 2026 | 61.9% | 695 |
| 24 Jul 2026 | 61.9% | 695 |
| 23 Jul 2026 | 61.8% | 695 |
| 22 Jul 2026 | 61.8% | 694 |
| 21 Jul 2026 | 61.8% | 694 |
| 20 Jul 2026 | 61.7% | 693 |
| 19 Jul 2026 | 61.7% | 693 |
| 18 Jul 2026 | 61.6% | 692 |
| 17 Jul 2026 | 61.6% | 692 |
| 16 Jul 2026 | 61.5% | 691 |
Frequently asked questions
What is the current water level of Thomson?
As of July 27, 2026, Thomson is at 62.0% of its capacity, holding approximately 696 hm³ of water, according to BOM data.
Is Thomson reservoir full?
No. As of July 27, 2026, Thomson is within its normal operating range at 62.0% of its capacity, so it is not full.
Is the water level at Thomson rising or falling?
The level at Thomson has been broadly stable over the latest week on record (0.0 points).
How much water can Thomson hold?
Thomson has a total capacity of 1,123 hm³, of which about 1,068 hm³ is usable storage.
Where is Thomson reservoir located?
Thomson is located in Victoria, Australia, within the Thomson River Basin basin (coordinates 37.780°S, 146.364°E).
When was Thomson dam built?
The dam at Thomson was completed in 1984.
What is Thomson used for?
Thomson is used primarily for water supply, and is managed by BOM.