Reservoir · Western Australia · Australia · BOM Water Data Online
North Dandalup
54.3% full
Capacity
74.9 hm³
Volume stored
41 hm³
River
North Dandalup River
Year completed
1994
Coordinates
32.516°S, 116.028°E
Last updated
2026-07-26
Current fill
54.3%vs 7 days ago
0.0%stable
vs 1 year ago
+0.9%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: 2026-07-26.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -32.516, 116.028 · Open in Google Maps
About North Dandalup
As of July 26, 2026, North Dandalup is filled to 54.3% of its total capacity, holding roughly 41 hm³ of water out of a maximum 75 hm³. At this level the reservoir is within its normal operating range. Of that total, about 74 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 North Dandalup — 1057 data points between July 30, 2023 and July 26, 2026 — the level has ranged from a low of 48.1% (December 21, 2023) to a high of 70.2% (September 20, 2025). On average the reservoir is fullest around September and at its lowest around June.
The dam at North Dandalup was completed in 1994. It is operated by BOM primarily for water supply. It lies within the North Dandalup River Basin basin at 32.516°S, 116.028°E.
Key facts
- Current fill level
- 54.3%
- Water stored
- 41 hm³
- Total capacity
- 75 hm³
- Usable capacity
- 74 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 0.9 pts
- Primary use
- Water supply
- River
- North Dandalup River
- River basin
- North Dandalup River Basin
- Year completed
- 1994
- Operator
- BOM
- Coordinates
- 32.516°S, 116.028°E
- Last updated
- July 26, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 26 Jul 2026 | 54.3% | 41 |
| 25 Jul 2026 | 54.3% | 41 |
| 24 Jul 2026 | 54.4% | 41 |
| 23 Jul 2026 | 54.4% | 41 |
| 22 Jul 2026 | 54.4% | 41 |
| 21 Jul 2026 | 54.4% | 41 |
| 20 Jul 2026 | 54.6% | 41 |
| 19 Jul 2026 | 54.7% | 41 |
| 18 Jul 2026 | 54.7% | 41 |
| 17 Jul 2026 | 54.8% | 41 |
| 16 Jul 2026 | 54.8% | 41 |
| 15 Jul 2026 | 54.8% | 41 |
Frequently asked questions
What is the current water level of North Dandalup?
As of July 26, 2026, North Dandalup is at 54.3% of its capacity, holding approximately 41 hm³ of water, according to BOM data.
Is North Dandalup reservoir full?
No. As of July 26, 2026, North Dandalup is within its normal operating range at 54.3% of its capacity, so it is not full.
Is the water level at North Dandalup rising or falling?
The level at North Dandalup has been broadly stable over the latest week on record (0.0 points).
How much water can North Dandalup hold?
North Dandalup has a total capacity of 75 hm³, of which about 74 hm³ is usable storage.
Where is North Dandalup reservoir located?
North Dandalup is located in Western Australia, Australia, within the North Dandalup River Basin basin (coordinates 32.516°S, 116.028°E).
When was North Dandalup dam built?
The dam at North Dandalup was completed in 1994.
What is North Dandalup used for?
North Dandalup is used primarily for water supply, and is managed by BOM.