Fronhas
Coimbra · Centro · Mondego
Capacity
62 hm³
Coordinates
40.220°N, 8.067°W
Operator
RH4
68.6% full
Current fill
68.6%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 | 62 hm³ |
| Usable capacity | 55.8 hm³ |
| Primary use | Multi-purpose |
| Operator | RH4 |
| River | Mondego |
| Province | Coimbra |
| Autonomous community | Centro |
| River basin | Mondego |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 40.220, -8.067 · Open in Google Maps
About Fronhas
As of September 8, 2026, Fronhas is filled to 68.6% of its total capacity, holding roughly 43 hm³ of water out of a maximum 62 hm³. At this level the reservoir is within its normal operating range. Of that total, about 56 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 Fronhas — 1 data points between September 8, 2026 and September 8, 2026 — the level has ranged from a low of 68.6% (September 8, 2026) to a high of 68.6% (September 8, 2026).
It is operated by RH4 primarily for multiple purposes. It lies within the Mondego basin at 40.220°N, 8.067°W.
Key facts
- Current fill level
- 68.6%
- Water stored
- 43 hm³
- Total capacity
- 62 hm³
- Usable capacity
- 56 hm³
- 7-day change
- No change
- Primary use
- Multipurpose
- River
- Mondego
- River basin
- Mondego
- Operator
- RH4
- Coordinates
- 40.220°N, 8.067°W
- Last updated
- September 8, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 8 Sep 2026 | 68.6% | 43 |