Dez
Khuzestan
Capacity
2,648.3 hm³
Coordinates
32.605°N, 48.463°E
Operator
Iran Water Resources Management Company (IWRMC)
60.0% full
Current fill
60.0%vs 7 days ago
0.0%stable
vs 1 year ago
N/A7-day trend
→stable
Drought context
Rain over the last three months · 1 October 2026
Moderately wet
In the three months to 1 October 2026 the area around Dez had more rain than normal for the season. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index +1.36). Rain, not storage.
EU drought indicator · 21 September 2026
Noneno drought signal
The European Drought Observatory's combined reading of rain, soil moisture and vegetation at this point. Watch means rain has been short, Warning that the soil has dried out, Alert that vegetation is visibly stressed; Recovery means the shortfall is easing. Ground conditions, not the reservoir's storage. Iran drought figures →
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 2,648.3 hm³ |
| Usable capacity | 2,648.3 hm³ |
| Primary use | Hydroelectric |
| Operator | Iran Water Resources Management Company (IWRMC) |
| Province | Khuzestan |
| Autonomous community | Khuzestan |
| River basin |
About Dez
As of September 19, 2026, Dez is filled to 60.0% of its total capacity, holding roughly 1,589 hm³ of water out of a maximum 2,648 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts).
Across the readings we hold for Dez — 1 data points between September 19, 2026 and September 19, 2026 — the level has ranged from a low of 60.0% (September 19, 2026) to a high of 60.0% (September 19, 2026).
It is operated by Iran Water Resources Management Company (IWRMC) primarily for hydroelectric power.
Key facts
- Current fill level
- 60.0%
- Water stored
- 1,589 hm³
- Total capacity
- 2,648 hm³
- 7-day change
- No change
- Primary use
- Hydroelectric power
- Operator
- Iran Water Resources Management Company (IWRMC)
- Coordinates
- 32.605°N, 48.463°E
- Last updated
- September 19, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 19 Sep 2026 | 60.0% | 1,589 |