Maranhão
Portalegre · Alentejo · Tejo
Capacity
213 hm³
Coordinates
38.907°N, 8.150°W
Operator
RH5
Current fill
86.3%vs 7 days ago
0.0%stable
vs 1 year ago
N/A7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 213 hm³ |
| Usable capacity | 191.7 hm³ |
| Primary use | Multi-purpose |
| Operator | RH5 |
| River | Tejo |
| Province | Portalegre |
| Autonomous community | Alentejo |
| River basin | Tejo |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.907, -8.150 · Open in Google Maps
About Maranhão
As of June 9, 2026, Maranhão is filled to 86.3% of its total capacity, holding roughly 184 hm³ of water out of a maximum 213 hm³. At this level the reservoir is high. Of that total, about 192 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts).
Across the readings we hold for Maranhão — 1 data points between June 9, 2026 and June 9, 2026 — the level has ranged from a low of 86.3% (June 9, 2026) to a high of 86.3% (June 9, 2026).
It is operated by RH5 primarily for multiple purposes. It lies within the Tejo basin at 38.907°N, 8.150°W.
Key facts
- Current fill level
- 86.3%
- Water stored
- 184 hm³
- Total capacity
- 213 hm³
- Usable capacity
- 192 hm³
- 7-day change
- No change
- Primary use
- Multipurpose
- River
- Tejo
- River basin
- Tejo
- Operator
- RH5
- Coordinates
- 38.907°N, 8.150°W
- Last updated
- June 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Jun 2026 | 86.3% | 184 |
Frequently asked questions
What is the current water level of Maranhão?
As of June 9, 2026, Maranhão is at 86.3% of its capacity, holding approximately 184 hm³ of water, according to SNIRH data.
Is Maranhão reservoir full?
No. As of June 9, 2026, Maranhão is high at 86.3% of its capacity, so it is not full.
Is the water level at Maranhão rising or falling?
The level at Maranhão has been broadly stable over the latest week on record (0.0 points).
How much water can Maranhão hold?
Maranhão has a total capacity of 213 hm³, of which about 192 hm³ is usable storage.
Where is Maranhão reservoir located?
Maranhão is located in Portalegre, Alentejo, Portugal, within the Tejo basin (coordinates 38.907°N, 8.150°W).
What is Maranhão used for?
Maranhão is used primarily for multiple purposes, and is managed by RH5.