NUTS II Region · Portugal
Alentejo
84.9% average fill
Reservoirs
14
Volume stored
5,072 hm³
Total capacity
5,971 hm³
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Reservoirs
4 districtsPortalegre
5 reservoirs · avg 84.9%Belver
Portalegre
Fill level
83.8%
30 hm³
/ 36 cap.
Montargil
Portalegre
Fill level
85.2%
248 hm³
/ 291 cap.
Maranhão
Portalegre
Fill level
86.3%
184 hm³
/ 213 cap.
Apartadura
Portalegre
Fill level
87.4%
35 hm³
/ 40 cap.
Caia
Portalegre
Fill level
82.0%
185 hm³
/ 225 cap.
Beja
5 reservoirs · avg 81.5%Roxo
Beja
Fill level
74.3%
84 hm³
/ 113 cap.
Odivelas
Beja
Fill level
75.5%
73 hm³
/ 97 cap.
Santa Clara
Beja
Fill level
84.9%
412 hm³
/ 485 cap.
Alqueva
Beja
Fill level
85.9%
3565 hm³
/ 4,150 cap.
Pedrogão
Beja
Fill level
86.8%
92 hm³
/ 106 cap.
Setúbal
2 reservoirs · avg 74.8%About reservoirs in Alentejo
As of September 8, 2026, the reservoirs we track across Alentejo that report live levels hold roughly 5,072 hm³ of water — about 84.9% of their combined capacity. Taken together, Alentejo's reservoirs are high.
None of the tracked reservoirs are currently at critically low levels. Apartadura is the fullest at 87.4%, while Pego do Altar is the lowest at 73.1%.
Storage figures for Alentejo come from SNIRH; the most recent reading is from September 8, 2026. Each reservoir below links to its own page with full history and seasonal context.
Alentejo at a glance
- Reservoirs tracked
- 14
- Average fill
- 84.9%
- Water stored
- 5,072 hm³
- Combined capacity
- 5,971 hm³
- Fullest
- Apartadura (87.4%)
- Lowest
- Pego do Altar (73.1%)
- Last updated
- September 8, 2026