Reservoir · Tamil Nadu · India · CWC · SOUTHERN region
Sathanur
Sathanur Dam
27.8% full
Gross capacity
7.3 TMC (207 MCM)
Live capacity
7.0 TMC (199 MCM)
River
Ponnaiyar
Basin
East Flowing
Primary use
irrigation
Operator
TNPWD
Coordinates
12.167°N, 79.167°E
Last updated
2026-09-10
Capacity in TMC
Sathanur Dam has a gross capacity of 7.3 TMC (207 MCM), of which 7.0 TMC (199 MCM) is live storage; it is currently at 28% full, holding 2.0 TMC (58 MCM).
- Gross capacity
- 7.3 TMC (207 MCM)
- Live capacity
- 7.0 TMC (199 MCM)
- Current storage
- 2.0 TMC (58 MCM)
TMC is thousand million cubic feet, the unit used in Indian water reporting. 1 TMC = 28.3168 million cubic metres (MCM). Figures are converted from the Central Water Commission bulletin, which publishes million cubic metres.
Current fill
27.8%vs 7 days ago
-0.2%losing
vs 1 year ago
N/A7-day trend
→stable
Weekly storage
Fill history — multi-year
About this reservoir
Data source
official
Storage data: CWC (Central Water Commission) Weekly Storage Bulletin, India. CWC region: SOUTHERN.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 12.167, 79.167 · Open in Google Maps
About Sathanur Dam
As of September 10, 2026, Sathanur Dam is filled to 27.8% of its total capacity, holding 2.0 TMC (58 MCM) of a gross 7.3 TMC (207 MCM). At this level the reservoir is low. Of that total, 7.0 TMC (199 MCM) is live storage.
Over the most recent week on record the fill level has held broadly steady (-0.2 pts).
Across the readings we hold for Sathanur Dam — 15 data points between May 31, 2026 and September 10, 2026 — the level has ranged from a low of 27.8% (September 10, 2026) to a high of 51.2% (May 31, 2026).
It is operated by TNPWD primarily for irrigation. It lies within the East Flowing basin at 12.167°N, 79.167°E.
Key facts
- Current fill level
- 27.8%
- Water stored
- 2.0 TMC (58 MCM)
- Total capacity
- 7.3 TMC (207 MCM)
- Usable capacity
- 7.0 TMC (199 MCM)
- 7-day change
- ▼ 0.2 pts
- Primary use
- Irrigation
- River
- Ponnaiyar
- River basin
- East Flowing
- Operator
- TNPWD
- Coordinates
- 12.167°N, 79.167°E
- Last updated
- September 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Sep 2026 | 27.8% | 58 |
| 3 Sep 2026 | 28.0% | 58 |
| 29 Aug 2026 | 28.3% | 59 |
| 27 Aug 2026 | 28.5% | 59 |
| 21 Aug 2026 | 28.7% | 60 |
| 20 Aug 2026 | 28.8% | 60 |
| 13 Aug 2026 | 29.5% | 61 |
| 6 Aug 2026 | 29.5% | 61 |
| 30 Jul 2026 | 28.8% | 60 |
| 23 Jul 2026 | 29.3% | 61 |
| 16 Jul 2026 | 29.8% | 62 |
| 9 Jul 2026 | 30.3% | 63 |