Reservoir · Kerala · India · CWC · SOUTHERN region
Idukki
Idukki Dam
29.8% full
Total capacity
1,996 hm³
Live storage
1,467 hm³
River
Periyar
Basin
West Flowing
Primary use
hydropower
Operator
KSEB
Coordinates
9.850°N, 76.967°E
Last updated
2026-07-30
Current fill
29.8%vs 7 days ago
+1.1%gaining
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. 9.850, 76.967 · Open in Google Maps
About Idukki Dam
As of July 30, 2026, Idukki Dam is filled to 29.8% of its total capacity, holding roughly 435 hm³ of water out of a maximum 1,996 hm³. At this level the reservoir is low. Of that total, about 1,467 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+1.1 pts).
Across the readings we hold for Idukki Dam — 9 data points between May 31, 2026 and July 30, 2026 — the level has ranged from a low of 23.5% (June 25, 2026) to a high of 46.9% (May 31, 2026).
It is operated by KSEB primarily for hydroelectric power. It lies within the West Flowing basin at 9.850°N, 76.967°E.
Key facts
- Current fill level
- 29.8%
- Water stored
- 435 hm³
- Total capacity
- 1,996 hm³
- Usable capacity
- 1,467 hm³
- 7-day change
- ▲ 1.1 pts
- Primary use
- Hydroelectric power
- River
- Periyar
- River basin
- West Flowing
- Operator
- KSEB
- Coordinates
- 9.850°N, 76.967°E
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 29.8% | 435 |
| 23 Jul 2026 | 28.7% | 419 |
| 22 Jul 2026 | 28.6% | 570 |
| 16 Jul 2026 | 28.6% | 417 |
| 9 Jul 2026 | 27.1% | 395 |
| 6 Jul 2026 | 26.1% | 522 |
| 2 Jul 2026 | 23.7% | 346 |
| 25 Jun 2026 | 23.5% | 344 |
| 31 May 2026 | 46.9% | 685 |
Frequently asked questions
What is the current water level of Idukki Dam?
As of July 30, 2026, Idukki Dam is at 29.8% of its capacity, holding approximately 435 hm³ of water, according to CWC data.
Is Idukki Dam reservoir full?
No. As of July 30, 2026, Idukki Dam is low at 29.8% of its capacity, so it is not full.
Is the water level at Idukki Dam rising or falling?
The level at Idukki Dam has been broadly stable over the latest week on record (+1.1 points).
How much water can Idukki Dam hold?
Idukki Dam has a total capacity of 1,996 hm³, of which about 1,467 hm³ is usable storage.
Where is Idukki Dam reservoir located?
Idukki Dam is located in Kerala, India, within the West Flowing basin (coordinates 9.850°N, 76.967°E).
What is Idukki Dam used for?
Idukki Dam is used primarily for hydroelectric power, and is managed by KSEB.