Basin Mekong
Oon River
ลำน้ำอูน
A tributary of the Songkhram River in Sakon Nakhon province, site of the Nam Oon Dam.
Key facts
- Length
- about 50 kmMeasured along the river on this map; official figures can differ with the method used
- Source
- Sakon Nakhon province
- Flows into
- Songkhram River, Nakhon Phanom province
- Basin
- Mekong
- Provinces (2)
- Sakon Nakhon, Nakhon Phanom
- Dams on the river
- Nam Oon Dam
Oon River water level today
1 automatic gauging stations on this river, highest water relative to the bank first. As of 29 Sep 2026, 19:50
| Station | Location | Level (m MSL) | Of bank-full | Status | Measured |
|---|---|---|---|---|---|
| Songkhram 2 | Phanna Nikhom District, Sakon Nakhon | 153.27 | 76% | High | 29 Sep 2026, 19:50 |
Data from the National Hydroinformatics Data Center (ThaiWater), HII, refreshed every 10 minutes
Frequently asked questions
- Which provinces does the Oon River flow through?
- The Oon River flows through 2 provinces: Sakon Nakhon and Nakhon Phanom.
- How long is the Oon River?
- The Oon River is about 50 km long, measured along the river on this map. Official figures can differ slightly with the method used.
- Where does the Oon River come from?
- The Oon River rises in Sakon Nakhon province.
- Which river does the Oon River flow into?
- The Oon River flows into the Songkhram River in Nakhon Phanom province.
- Which dams are on the Oon River?
- Dams on the Oon River on this map: Nam Oon Dam.
- What is the Oon River water level today?
- Of 1 gauging stations, 0 are over the bank and 1 have high water. Data as of 29 Sep 2026, 19:50.
- What is the Oon River called in Thai?
- In Thai the Oon River is ลำน้ำอูน.
Other rivers in the Mekong basin
Mekong RiverIng RiverKham RiverRuak RiverLoei RiverHueang RiverSongkhram RiverKam River