Reservoir · Western Australia · Australia · BOM Water Data Online
North Dandalup
59.7% full
Capacity
74.9 hm³
Volume stored
45 hm³
River
North Dandalup River
Year completed
1994
Coordinates
32.516°S, 116.028°E
Last updated
2026-10-24
Current fill
59.7%vs 7 days ago
-0.1 pplosing
vs 1 year ago
-9.1 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
93%of normal
59.7% full on 2026-10-24, against an average of 64.2% for October across 4 years of readings (-4.5 points).
Rain over the last three months · 11 October 2026
Moderately dry
In the three months to 11 October 2026 the area around North Dandalup had well below normal rain, a shortfall seen about one year in six. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index −1.16). Rain, not storage. Australia drought figures →
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: 2026-10-24.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 32.516°S, 116.028°E · Open in Google Maps
About North Dandalup
As of October 24, 2026, North Dandalup is filled to 59.7% of its total capacity, holding 44.69 hm³ of water out of a maximum 74.9 hm³. At this level the reservoir is within its normal operating range. Of that total, 73.8 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (-0.1 pp), and it is 9.1 points below its level on the same date a year earlier.
Across the readings we hold for North Dandalup — 1054 data points between October 28, 2023 and October 24, 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 October 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
- 59.7% of total capacity
- Water stored
- 44.69 hm³
- Total capacity
- 74.9 hm³
- Usable capacity
- 73.8 hm³
- 7-day change
- ▼ 0.1 pp
- Year-on-year
- ▼ 9.1 pp
- 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
- October 24, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 24 Oct 2026 | 59.7% | 44.69 |
| 23 Oct 2026 | 59.7% | 44.71 |
| 22 Oct 2026 | 59.8% | 44.74 |
| 21 Oct 2026 | 59.8% | 44.8 |
| 20 Oct 2026 | 59.9% | 44.81 |
| 19 Oct 2026 | 59.8% | 44.78 |
| 18 Oct 2026 | 59.8% | 44.76 |
| 17 Oct 2026 | 59.8% | 44.76 |
| 16 Oct 2026 | 59.8% | 44.76 |
| 15 Oct 2026 | 59.8% | 44.74 |
| 14 Oct 2026 | 59.8% | 44.73 |
| 13 Oct 2026 | 59.8% | 44.74 |