Reservoir · Cundinamarca · Colombia · XM
Guavio
86.4% full
Capacity
1,977.93 GWh
Energy stored
1709 GWh
River
Guavio
Coordinates
4.721°N, 73.496°W
Last updated
2026-10-28
Current fill
86.4%vs 7 days ago
-0.8 pplosing
vs 1 year ago
-8.3 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
103%of normal
86.4% full on 2026-10-28, against an average of 84.2% for October across 6 years of readings (+2.2 points).
Rain over the last three months · 11 October 2026
Very wet
In the three months to 11 October 2026 the area around Guavio had much more rain than normal, seen about one year in fifteen. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index +1.61). Rain, not storage. Colombia drought figures →
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: 2026-10-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 4.721°N, 73.496°W · Open in Google Maps
About Guavio
As of October 28, 2026, Guavio is filled to 86.4% of its total capacity, holding 1,709 GWh of water out of a maximum 1,978 GWh. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.8 pp), and it is 8.3 points below its level on the same date a year earlier.
Across the readings we hold for Guavio — 1976 data points between May 1, 2021 and October 28, 2026 — the level has ranged from a low of 4.0% (April 1, 2024) to a high of 100.0% (November 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 Guavio basin at 4.721°N, 73.496°W.
Key facts
- Current fill level
- 86.4% of total capacity
- Water stored
- 1,709 GWh
- Total capacity
- 1,978 GWh
- 7-day change
- ▼ 0.8 pp
- Year-on-year
- ▼ 8.3 pp
- Primary use
- Hydroelectric power
- River basin
- Guavio
- Operator
- XM
- Coordinates
- 4.721°N, 73.496°W
- Last updated
- October 28, 2026
Recent readings
| Date | Fill level | Volume (GWh) |
|---|---|---|
| 28 Oct 2026 | 86.4% | 1,709 |
| 27 Oct 2026 | 86.4% | 1,709 |
| 26 Oct 2026 | 86.4% | 1,709 |
| 25 Oct 2026 | 86.3% | 1,707 |
| 24 Oct 2026 | 86.1% | 1,703 |
| 23 Oct 2026 | 86.9% | 1,718 |
| 22 Oct 2026 | 87.1% | 1,722 |
| 21 Oct 2026 | 87.2% | 1,724 |
| 20 Oct 2026 | 87.1% | 1,723 |
| 19 Oct 2026 | 86.9% | 1,719 |
| 18 Oct 2026 | 86.6% | 1,713 |
| 17 Oct 2026 | 86.1% | 1,703 |