Reservoir · New South Wales · Australia · BOM Water Data Online
Tombullen
9.3% full
Capacity
11.2 hm³
Volume stored
1 hm³
Coordinates
34.648°S, 146.152°E
Last updated
2026-07-29
Current fill
9.3%vs 7 days ago
-0.1%losing
vs 1 year ago
-80.4%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: 2026-07-29.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -34.648, 146.152 · Open in Google Maps
About Tombullen
As of July 29, 2026, Tombullen is filled to 9.3% of its total capacity, holding roughly 1 hm³ of water out of a maximum 11 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (-0.1 pts), and it is 80.4 points below its level on the same date a year earlier.
Across the readings we hold for Tombullen — 1076 data points between July 30, 2023 and July 29, 2026 — the level has ranged from a low of 4.6% (August 7, 2025) to a high of 96.2% (May 2, 2024). On average the reservoir is fullest around November and at its lowest around July.
It is operated by BOM primarily for water supply.
Key facts
- Current fill level
- 9.3%
- Water stored
- 1 hm³
- Total capacity
- 11 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- ▼ 80.4 pts
- Primary use
- Water supply
- Operator
- BOM
- Coordinates
- 34.648°S, 146.152°E
- Last updated
- July 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Jul 2026 | 9.3% | 1 |
| 28 Jul 2026 | 9.4% | 1 |
| 27 Jul 2026 | 9.5% | 1 |
| 26 Jul 2026 | 9.5% | 1 |
| 25 Jul 2026 | 9.5% | 1 |
| 24 Jul 2026 | 9.6% | 1 |
| 23 Jul 2026 | 9.6% | 1 |
| 22 Jul 2026 | 9.7% | 1 |
| 21 Jul 2026 | 9.8% | 1 |
| 20 Jul 2026 | 9.8% | 1 |
| 19 Jul 2026 | 9.1% | 1 |
| 18 Jul 2026 | 8.9% | 1 |
Frequently asked questions
What is the current water level of Tombullen?
As of July 29, 2026, Tombullen is at 9.3% of its capacity, holding approximately 1 hm³ of water, according to BOM data.
Is Tombullen reservoir full?
No. As of July 29, 2026, Tombullen is critically low at 9.3% of its capacity, so it is not full.
Is the water level at Tombullen rising or falling?
The level at Tombullen has been broadly stable over the latest week on record (-0.1 points).
How much water can Tombullen hold?
Tombullen has a total capacity of 11 hm³.
Where is Tombullen reservoir located?
Tombullen is located in New South Wales, Australia (coordinates 34.648°S, 146.152°E).
What is Tombullen used for?
Tombullen is used primarily for water supply, and is managed by BOM.