Reservoir · Victoria · Australia · BOM Water Data Online
Thomson
61.5% full
Capacity
1,123.1 hm³
Volume stored
691 hm³
River
Thomson River
Year completed
1984
Coordinates
37.780°S, 146.364°E
Last updated
2026-06-09
Current fill
61.5%vs 7 days ago
-0.1%losing
vs 1 year ago
-3.4%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: 2026-06-09.
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 June 9, 2026, Thomson is filled to 61.5% of its total capacity, holding roughly 691 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 (-0.1 pts), and it is 3.4 points below its level on the same date a year earlier.
Across the readings we hold for Thomson — 1062 data points between June 12, 2023 and June 9, 2026 — the level has ranged from a low of 61.5% (June 9, 2026) to a high of 95.3% (January 13, 2024). On average the reservoir is fullest around November and at its lowest around May.
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
- 61.5%
- Water stored
- 691 hm³
- Total capacity
- 1,123 hm³
- Usable capacity
- 1,068 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- ▼ 3.4 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
- June 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Jun 2026 | 61.5% | 691 |
| 8 Jun 2026 | 61.6% | 692 |
| 7 Jun 2026 | 61.7% | 692 |
| 6 Jun 2026 | 61.7% | 693 |
| 5 Jun 2026 | 61.8% | 694 |
| 4 Jun 2026 | 61.8% | 694 |
| 3 Jun 2026 | 61.9% | 695 |
| 2 Jun 2026 | 62.0% | 696 |
| 1 Jun 2026 | 62.1% | 697 |
| 31 May 2026 | 62.2% | 698 |
| 30 May 2026 | 62.3% | 699 |
| 29 May 2026 | 62.3% | 700 |
Frequently asked questions
What is the current water level of Thomson?
As of June 9, 2026, Thomson is at 61.5% of its capacity, holding approximately 691 hm³ of water, according to BOM data.
Is Thomson reservoir full?
No. As of June 9, 2026, Thomson is within its normal operating range at 61.5% 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 (-0.1 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.