Rajjaprabha
South
Capacity
5,638.84 hm³
Coordinates
8.973°N, 98.806°E
Operator
Electricity Generating Authority of Thailand (EGAT)
75.6% full
Current fill
75.6%vs 7 days ago
0.0%stable
vs 1 year ago
N/A7-day trend
→stable
Drought context
Rain over the last three months · 1 October 2026
Moderately dry
In the three months to 1 October 2026 the area around Rajjaprabha had well below normal rain, a shortfall seen about one year in six. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index −1.37). Rain, not storage. Thailand drought figures →
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 5,638.84 hm³ |
| Usable capacity | 5,638.84 hm³ |
| Primary use | Hydroelectric |
| Operator | Electricity Generating Authority of Thailand (EGAT) |
| Province | South |
| River basin |
About Rajjaprabha
As of October 20, 2026, Rajjaprabha is filled to 75.6% of its total capacity, holding roughly 4,261 hm³ of water out of a maximum 5,639 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts).
Across the readings we hold for Rajjaprabha — 2 data points between October 19, 2026 and October 20, 2026 — the level has ranged from a low of 75.5% (October 19, 2026) to a high of 75.6% (October 20, 2026).
It is operated by Electricity Generating Authority of Thailand (EGAT) primarily for hydroelectric power.
Key facts
- Current fill level
- 75.6%
- Water stored
- 4,261 hm³
- Total capacity
- 5,639 hm³
- 7-day change
- No change
- Primary use
- Hydroelectric power
- Operator
- Electricity Generating Authority of Thailand (EGAT)
- Coordinates
- 8.973°N, 98.806°E
- Last updated
- October 20, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 20 Oct 2026 | 75.6% | 4,261 |
| 19 Oct 2026 | 75.5% | 4,258 |