According to the Directorate of Water Research and Planning, the country’s dams held 11.126 billion cubic metres of water on October 9, with the national filling rate rising marginally from 65.30 to 65.34 per cent.
The increase came mainly from the Mohammed V Dam in the Moulouya basin, which gained 14.45 million cubic metres during the four-day period. Its reserves rose from 37.29 million to 51.74 million cubic metres, taking its filling rate from 22.60 to 31.36pc. The dam had stood at just 21.76pc of capacity on October 4.
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In the same basin, Hassan II gained 2.34 million cubic meters, reaching 202.84 million, or 57.35% of capacity. Tamalout added 0.95 million cubic meters, bringing its filling rate to 70.64%, while Injil gained 1.17 million, rising from 24.97% to 37.49%. Mechraa Hammadi’s rate increased from 70.54% to 77.74%.
Overall, the Moulouya basin gained 19.24 million cubic meters, with its filling rate rising from 56.35% to 59.09%. On the same date last year, the rate stood at just 29.70%.
Dam reserves by reservoir
| Dam | Basin | Normal capacity (million m³) | Filling rate, Oct. 5 | Filling rate, Oct. 9 | Change (percentage points) | Volume, Oct. 5 (million m³) | Volume, Oct. 9 (million m³) | Volume change (million m³) |
|---|---|---|---|---|---|---|---|---|
| Mohammed V | Moulouya | 164.96 | 22.60% | 31.36% | +8.76 | 37.29 | 51.74 | +14.45 |
| Hassan Addakhil | Guir-Ziz-Ghris | 287.57 | 54.83% | 57.18% | +2.35 | 157.68 | 164.44 | +6.76 |
| Mansour Eddahbi | Draa-Oued Noun | 445.27 | 42.58% | 43.32% | +0.74 | 189.59 | 192.90 | +3.31 |
| Bin El Ouidane | Oum Er-Rbia | 1,273.40 | 79.44% | 79.65% | +0.21 | 1,011.58 | 1,014.23 | +2.65 |
| Idriss I | Sebou | 1,075.15 | 74.59% | 74.81% | +0.22 | 801.92 | 804.34 | +2.42 |
| Hassan II | Moulouya | 353.69 | 56.69% | 57.35% | +0.66 | 200.50 | 202.84 | +2.34 |
| Ahmed El Hansali | Oum Er-Rbia | 697.18 | 77.60% | 77.80% | +0.20 | 541.02 | 542.40 | +1.38 |
| Imfout | Oum Er-Rbia | 8.99 | 11.97% | 25.89% | +13.92 | 1.08 | 2.33 | +1.25 |
| Injil | Moulouya | 9.33 | 24.97% | 37.49% | +12.52 | 2.33 | 3.50 | +1.17 |
| Moulay Youssef | Oum Er-Rbia | 128.56 | 66.92% | 67.70% | +0.78 | 86.04 | 87.03 | +0.99 |
| Tamalout | Moulouya | 47.86 | 68.66% | 70.64% | +1.98 | 32.86 | 33.81 | +0.95 |
| Kadoussa | Guir-Ziz-Ghris | 224.18 | 26.51% | 26.91% | +0.40 | 59.43 | 60.32 | +0.89 |
| Al Massira | Oum Er-Rbia | 2,649.54 | 39.79% | 39.82% | +0.03 | 1,054.31 | 1,055.05 | +0.74 |
| Daourat | Oum Er-Rbia | 5.09 | 67.09% | 74.38% | +7.29 | 3.42 | 3.79 | +0.37 |
| Mechraa Hammadi | Moulouya | 4.67 | 70.54% | 77.74% | +7.20 | 3.30 | 3.63 | +0.33 |
| Timinoutine | Oum Er-Rbia | 0.73 | 38.70% | 79.38% | +40.68 | 0.28 | 0.58 | +0.30 |
| Yaacoub El Mansour | Tensift | 57.96 | 73.19% | 73.61% | +0.42 | 42.42 | 42.66 | +0.24 |
| Agdez | Draa-Oued Noun | 244.73 | 39.14% | 39.23% | +0.09 | 95.78 | 96.00 | +0.22 |
| Oulouz | Souss-Massa | 88.97 | 56.43% | 56.66% | +0.23 | 50.20 | 50.41 | +0.21 |
| Dkhila | Souss-Massa | 0.23 | 31.87% | 94.31% | +62.44 | 0.07 | 0.22 | +0.15 |
| Ben Abdelkrim Khattabi | Loukkos | 10.52 | 33.65% | 34.63% | +0.98 | 3.54 | 3.64 | +0.10 |
| Joumoua | Loukkos | 5.40 | 19.14% | 19.21% | +0.07 | 1.03 | 1.04 | +0.01 |
The Guir-Ziz-Ghris basin also recorded gains. Hassan Addakhil added 6.76 million cubic meters over four days, increasing its reserves from 157.68 million to 164.44 million, or 57.18% of capacity, compared with 54.83% on October 5. Its recovery began on October 1, when it held 152.95 million cubic meters.
Kadoussa added 0.89 million cubic meters, bringing its reserves to 60.32 million. Only Toudgha recorded a slight decline. The basin gained 7.63 million cubic meters overall, with its filling rate rising from 40.16% to 41.56%. However, it remains below its level on October 9, 2025, when the rate stood at 47.57%.
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In the Draa-Oued Noun basin, Mansour Eddahbi gained 3.31 million cubic meters, raising its filling rate from 42.58% to 43.32%, with reserves reaching 192.90 million cubic meters. Agdez added 0.22 million. The basin as a whole gained 3.49 million cubic meters, bringing its filling rate to 34.86%.
The Oum Er-Rbia basin gained 5.73 million cubic meters, with its filling rate rising from 57.73% to 57.85%. Bin El Ouidane added 2.65 million cubic meters, bringing its reserves to 1,014.23 million. Ahmed El Hansali gained 1.38 million, Moulay Youssef 0.99 million and Al Massira 0.74 million, reaching 1,055.05 million cubic meters.
Several smaller dams in the basin recorded sharp percentage-point increases because of their limited capacity. Imfout’s filling rate rose from 11.97% to 25.89%, Daourat’s from 67.09% to 74.38%, and Timinoutine’s from 38.70% to 79.38%. Hassan I, by contrast, lost one million cubic meters, leaving it with 183.33 million.
Dam reserves by basin
| Basin | Normal capacity (million m³) | Filling rate, Oct. 5 | Filling rate, Oct. 9 | Change (percentage points) | Volume, Oct. 5 (million m³) | Volume, Oct. 9 (million m³) | Volume change (million m³) |
|---|---|---|---|---|---|---|---|
| Sebou | 5,370.33 | 77.33% | 77.08% | -0.25 | 4,153.12 | 4,139.64 | -13.48 |
| Oum Er-Rbia | 5,003.37 | 57.73% | 57.85% | +0.12 | 2,888.69 | 2,894.42 | +5.73 |
| Loukkos | 1,956.55 | 76.04% | 75.66% | -0.38 | 1,487.86 | 1,480.38 | -7.48 |
| Bouregreg | 1,473.39 | 76.19% | 75.84% | -0.35 | 1,122.58 | 1,117.41 | -5.17 |
| Draa-Oued Noun | 1,048.18 | 34.53% | 34.86% | +0.33 | 361.92 | 365.41 | +3.49 |
| Souss-Massa | 722.83 | 46.50% | 46.40% | -0.10 | 336.13 | 335.41 | -0.72 |
| Moulouya | 701.49 | 56.35% | 59.09% | +2.74 | 395.26 | 414.50 | +19.24 |
| Guir-Ziz-Ghris | 548.28 | 40.16% | 41.56% | +1.40 | 220.21 | 227.84 | +7.63 |
| Tensift | 203.17 | 75.36% | 74.31% | -1.05 | 153.11 | 150.97 | -2.14 |
| National total | 17,027.59 | 65.30% | 65.34% | +0.04 | 11,118.88 | 11,125.97 | +7.09 |
In the Souss-Massa basin, Oulouz gained 0.21 million cubic meters. The small Dkhila Dam’s filling rate surged from 31.87% to 94.31%, with reserves reaching 0.22 million cubic meters. The basin as a whole nevertheless recorded a slight decline, falling from 336.13 million to 335.41 million cubic meters.
Four basins gained water while five recorded declines. The Sebou basin lost 13.48 million cubic meters, bringing its reserves down to 4,139.64 million, or 77.08% of capacity. Idriss I nevertheless gained 2.42 million cubic meters, reaching 804.34 million. The overall decline was driven mainly by Al Wahda, which lost 11.59 million cubic meters as its filling rate fell from 80.86% to 80.53%. El Kansera lost 2.81 million cubic meters, bringing its filling rate down to 62.38%.
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The Loukkos basin lost 7.48 million cubic meters, with its filling rate dropping from 76.04% to 75.66%. Dar Khroufa accounted for 5.12 million of that decline, leaving it at 87.14% of capacity. The Bouregreg basin lost 5.17 million cubic meters and fell to 75.84%, with the Sidi Mohammed Ben Abdellah Dam shedding 4.70 million cubic meters to reach a filling rate of 69.75%.
The Tensift basin lost 2.14 million cubic meters, with its filling rate declining from 75.36% to 74.31%. Lalla Takerkoust lost nearly two million cubic meters, bringing its filling rate down to 66.33%.
Nationwide, 22 of Morocco’s 69 dams recorded an increase in reserves between October 5 and 9. Thirty-seven saw their reserves decline, while 10 remained unchanged.
On October 9, 2025, the national dam-filling rate stood at 32.32%, less than half the current level.
