Reservoir · Antioquia · Colombia · XM
San Lorenzo
85.7% full
Capacity
425.48 GWh
Energy stored
364 GWh
River
Nare
Coordinates
6.191°N, 74.944°W
Last updated
2026-06-10
Current fill
85.7%vs 7 days ago
-0.6%losing
vs 1 year ago
+6.4%year-over-year
7-day trend
→stable
Data source: XM — Operador del Mercado de Energía — daily useful-energy storage (VoluUtilDiarEner) and useful capacity (CapaUtilDiarEner). Colombia is a hydropower system, so storage is reported as energy (GWh), not water volume; fill % is useful energy ÷ useful capacity. Last reading: 2026-06-10.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 6.191, -74.944 · Open in Google Maps
About San Lorenzo
As of June 10, 2026, San Lorenzo is filled to 85.7% of its total capacity, holding roughly 364 GWh of water out of a maximum 425 GWh. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.6 pts), and it is 6.4 points above its level on the same date a year earlier.
Across the readings we hold for San Lorenzo — 1987 data points between January 1, 2021 and June 10, 2026 — the level has ranged from a low of 6.3% (April 9, 2024) to a high of 105.0% (May 5, 2021). On average the reservoir is fullest around August and at its lowest around April.
It is operated by XM primarily for hydroelectric power. It lies within the Nare basin at 6.191°N, 74.944°W.
Key facts
- Current fill level
- 85.7%
- Water stored
- 364 GWh
- Total capacity
- 425 GWh
- 7-day change
- ▼ 0.6 pts
- Year-on-year
- ▲ 6.4 pts
- Primary use
- Hydroelectric power
- River
- Nare
- River basin
- Nare
- Operator
- XM
- Coordinates
- 6.191°N, 74.944°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (GWh) |
|---|---|---|
| 10 Jun 2026 | 85.7% | 364 |
| 9 Jun 2026 | 86.3% | 367 |
| 8 Jun 2026 | 85.4% | 363 |
| 7 Jun 2026 | 83.8% | 356 |
| 6 Jun 2026 | 82.1% | 349 |
| 5 Jun 2026 | 80.9% | 344 |
| 4 Jun 2026 | 80.0% | 340 |
| 3 Jun 2026 | 77.9% | 332 |
| 2 Jun 2026 | 76.9% | 327 |
| 1 Jun 2026 | 77.0% | 328 |
| 31 May 2026 | 78.9% | 336 |
| 30 May 2026 | 80.3% | 342 |
Frequently asked questions
What is the current water level of San Lorenzo?
As of June 10, 2026, San Lorenzo is at 85.7% of its capacity, holding approximately 364 GWh of water, according to XM — Operador del Mercado de Energía data.
Is San Lorenzo reservoir full?
No. As of June 10, 2026, San Lorenzo is high at 85.7% of its capacity, so it is not full.
Is the water level at San Lorenzo rising or falling?
The level at San Lorenzo has been broadly stable over the latest week on record (-0.6 points).
How much water can San Lorenzo hold?
San Lorenzo has a total capacity of 425 GWh.
Where is San Lorenzo reservoir located?
San Lorenzo is located in Antioquia, Colombia, within the Nare basin (coordinates 6.191°N, 74.944°W).
What is San Lorenzo used for?
San Lorenzo is used primarily for hydroelectric power, and is managed by XM.