Reservoir · South Australia · Australia · BOM Water Data Online
Myponga
92.9% full
Capacity
27.6 hm³
Volume stored
26 hm³
River
Myponga River
Year completed
1962
Coordinates
35.391°S, 138.452°E
Last updated
2026-09-05
Current fill
92.9%vs 7 days ago
+1.0%gaining
vs 1 year ago
+30.7%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: 2026-09-05.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -35.391, 138.452 · Open in Google Maps
About Myponga
As of September 5, 2026, Myponga is filled to 92.9% of its total capacity, holding roughly 26 hm³ of water out of a maximum 28 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+1.0 pts), and it is 30.7 points above its level on the same date a year earlier.
Across the readings we hold for Myponga — 1092 data points between September 10, 2023 and September 5, 2026 — the level has ranged from a low of 47.0% (May 23, 2026) to a high of 92.9% (September 5, 2026). On average the reservoir is fullest around October and at its lowest around May.
The dam at Myponga was completed in 1962. It is operated by BOM primarily for water supply. It lies within the Myponga River Basin basin at 35.391°S, 138.452°E.
Key facts
- Current fill level
- 92.9%
- Water stored
- 26 hm³
- Total capacity
- 28 hm³
- 7-day change
- ▲ 1.0 pts
- Year-on-year
- ▲ 30.7 pts
- Primary use
- Water supply
- River
- Myponga River
- River basin
- Myponga River Basin
- Year completed
- 1962
- Operator
- BOM
- Coordinates
- 35.391°S, 138.452°E
- Last updated
- September 5, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 5 Sep 2026 | 92.9% | 26 |
| 4 Sep 2026 | 92.7% | 26 |
| 3 Sep 2026 | 92.6% | 26 |
| 2 Sep 2026 | 92.5% | 25 |
| 1 Sep 2026 | 92.4% | 25 |
| 31 Aug 2026 | 92.2% | 25 |
| 30 Aug 2026 | 92.0% | 25 |
| 29 Aug 2026 | 91.9% | 25 |
| 28 Aug 2026 | 91.7% | 25 |
| 27 Aug 2026 | 91.5% | 25 |
| 26 Aug 2026 | 91.2% | 25 |
| 25 Aug 2026 | 88.1% | 24 |