Reservoir · Western Australia · Australia · BOM Water Data Online
South Dandalup
16.1% full
Capacity
138 hm³
Volume stored
22 hm³
River
South Dandalup River
Year completed
1974
Coordinates
32.666°S, 116.086°E
Last updated
2026-06-08
Current fill
16.1%vs 7 days ago
+0.1%gaining
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: 2026-06-08.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -32.666, 116.086 · Open in Google Maps
About South Dandalup
As of June 8, 2026, South Dandalup is filled to 16.1% of its total capacity, holding roughly 22 hm³ of water out of a maximum 138 hm³. At this level the reservoir is critically low. Of that total, about 125 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.1 pts), and it sits close to where it was a year earlier.
Across the readings we hold for South Dandalup — 1046 data points between June 12, 2023 and June 8, 2026 — the level has ranged from a low of 13.9% (April 26, 2025) to a high of 27.2% (September 18, 2023). On average the reservoir is fullest around October and at its lowest around May.
The dam at South Dandalup was completed in 1974. It is operated by BOM primarily for water supply. It lies within the South Dandalup River Basin basin at 32.666°S, 116.086°E.
Key facts
- Current fill level
- 16.1%
- Water stored
- 22 hm³
- Total capacity
- 138 hm³
- Usable capacity
- 125 hm³
- 7-day change
- ▲ 0.1 pts
- Year-on-year
- ▲ 0.3 pts
- Primary use
- Water supply
- River
- South Dandalup River
- River basin
- South Dandalup River Basin
- Year completed
- 1974
- Operator
- BOM
- Coordinates
- 32.666°S, 116.086°E
- Last updated
- June 8, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 8 Jun 2026 | 16.1% | 22 |
| 7 Jun 2026 | 16.0% | 22 |
| 6 Jun 2026 | 16.0% | 22 |
| 5 Jun 2026 | 15.9% | 22 |
| 4 Jun 2026 | 15.9% | 22 |
| 3 Jun 2026 | 15.9% | 22 |
| 2 Jun 2026 | 16.0% | 22 |
| 1 Jun 2026 | 16.0% | 22 |
| 31 May 2026 | 15.9% | 22 |
| 30 May 2026 | 15.9% | 22 |
| 29 May 2026 | 15.8% | 22 |
| 28 May 2026 | 15.8% | 22 |
Frequently asked questions
What is the current water level of South Dandalup?
As of June 8, 2026, South Dandalup is at 16.1% of its capacity, holding approximately 22 hm³ of water, according to BOM data.
Is South Dandalup reservoir full?
No. As of June 8, 2026, South Dandalup is critically low at 16.1% of its capacity, so it is not full.
Is the water level at South Dandalup rising or falling?
The level at South Dandalup has been broadly stable over the latest week on record (+0.1 points).
How much water can South Dandalup hold?
South Dandalup has a total capacity of 138 hm³, of which about 125 hm³ is usable storage.
Where is South Dandalup reservoir located?
South Dandalup is located in Western Australia, Australia, within the South Dandalup River Basin basin (coordinates 32.666°S, 116.086°E).
When was South Dandalup dam built?
The dam at South Dandalup was completed in 1974.
What is South Dandalup used for?
South Dandalup is used primarily for water supply, and is managed by BOM.