Reservoir · Western Australia · Australia · BOM Water Data Online
Harris
15.7% full
Capacity
71.5 hm³
Volume stored
11 hm³
River
Harris River
Year completed
1990
Coordinates
33.234°S, 116.142°E
Last updated
2026-10-20
Current fill
15.7%vs 7 days ago
-0.1 pplosing
vs 1 year ago
-6.7 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
65%of normal
15.7% full on 2026-10-20, against an average of 24.0% for October across 4 years of readings (-8.3 points).
Rain over the last three months · 11 October 2026
Moderately dry
In the three months to 11 October 2026 the area around Harris 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 −1.29). 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: 2026-10-20.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 33.234°S, 116.142°E · Open in Google Maps
About Harris
As of October 20, 2026, Harris is filled to 15.7% of its total capacity, holding 11.22 hm³ of water out of a maximum 71.5 hm³. At this level the reservoir is critically low. Of that total, 70.5 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 6.7 points below its level on the same date a year earlier.
Across the readings we hold for Harris — 1076 data points between October 29, 2023 and October 20, 2026 — the level has ranged from a low of 14.3% (May 18, 2026) to a high of 31.5% (October 29, 2023). On average the reservoir is fullest around November and at its lowest around May.
The dam at Harris was completed in 1990. It is operated by BOM primarily for water supply. It lies within the Harris River Basin basin at 33.234°S, 116.142°E.
Key facts
- Current fill level
- 15.7% of total capacity
- Water stored
- 11.22 hm³
- Total capacity
- 71.5 hm³
- Usable capacity
- 70.5 hm³
- 7-day change
- ▼ 0.1 pp
- Year-on-year
- ▼ 6.7 pp
- Primary use
- Water supply
- River
- Harris River
- River basin
- Harris River Basin
- Year completed
- 1990
- Operator
- BOM
- Coordinates
- 33.234°S, 116.142°E
- Last updated
- October 20, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 20 Oct 2026 | 15.7% | 11.22 |
| 19 Oct 2026 | 15.7% | 11.23 |
| 18 Oct 2026 | 15.8% | 11.29 |
| 17 Oct 2026 | 15.9% | 11.35 |
| 16 Oct 2026 | 15.9% | 11.39 |
| 15 Oct 2026 | 15.9% | 11.33 |
| 14 Oct 2026 | 15.8% | 11.27 |
| 13 Oct 2026 | 15.8% | 11.27 |
| 12 Oct 2026 | 15.8% | 11.28 |
| 11 Oct 2026 | 15.8% | 11.31 |
| 10 Oct 2026 | 15.9% | 11.33 |
| 9 Oct 2026 | 15.9% | 11.35 |