Basin Mun
Mun River
แม่น้ำมูล
Rises in the Sankamphaeng Range in Nakhon Ratchasima province and flows east through Buri Ram, Surin, Si Sa Ket and Ubon Ratchathani. It joins the Mekong River in Khong Chiam district, at the spot known as the Two-Coloured River.
Key facts
- Length
- about 845 kmMeasured along the river on this map; official figures can differ with the method used
- Source
- Nakhon Ratchasima province
- Flows into
- Mekong River, Ubon Ratchathani province
- Basin
- Mun
- Provinces (6)
- Nakhon Ratchasima, Buri Ram, Surin, Roi Et, Si Sa Ket, Ubon Ratchathani
- Tributaries on the map
- Chi RiverSiao RiverLam TakhongLam Phra PhloengLam Dom YaiLam Dom NoiHuai Thap ThanHuai SamranLam Se Bai
- Dams on the river
- Pak Mun DamRasi Salai DamHua Na DamMun Bon Dam
Mun River water level today
16 automatic gauging stations on this river, highest water relative to the bank first. As of 15 Nov 2026, 06:30
| Station | Location | Level (m MSL) | Of bank-full | Status | Measured |
|---|---|---|---|---|---|
| บ้านซึม | Phimai District, Nakhon Ratchasima | 153.92 | 76% | High | 15 Nov 2026, 05:00 |
| สะพานเสรีประชาธิปไตย | Warin Chamrap District, Ubon Ratchathani | 107.73 | 63% | Normal | 15 Nov 2026, 05:00 |
| บ้านสีถาน | Kanthararom District, Si Sa Ket | 112.75 | 60% | Normal | 15 Nov 2026, 05:00 |
| บ้านสัมฤทธิ์ | Phimai District, Nakhon Ratchasima | 155.03 | 58% | Normal | 15 Nov 2026, 05:00 |
| บ้านโพธิ์ตาก | Phibun Mangsahan District, Ubon Ratchathani | 107.32 | 47% | Normal | 15 Nov 2026, 05:00 |
| Mun 2 | Chaloem Phra Kiat District, Nakhon Ratchasima | 164.10 | 46% | Normal | 15 Nov 2026, 06:30 |
| บ้านสตึก | Chumphon Buri District, Surin | 125.55 | 46% | Normal | 15 Nov 2026, 05:00 |
| Mun 5 | Rasi Salai District, Si Sa Ket | 113.13 | 46% | Normal | 15 Nov 2026, 06:30 |
| บ้านด่านกะตา | Chaloem Phra Kiat District, Nakhon Ratchasima | 162.97 | 43% | Normal | 15 Nov 2026, 05:00 |
| บ้านพงสวาย | Tha Tum District, Surin | 119.69 | 42% | Normal | 15 Nov 2026, 05:00 |
| บ้านเมืองคง | Rasi Salai District, Si Sa Ket | 113.45 | 39% | Normal | 15 Nov 2026, 05:00 |
| Nam Mun Bridge | Khong Chiam District, Ubon Ratchathani | 92.33 | 34% | Normal | 15 Nov 2026, 06:30 |
| Mun 11 | Phibun Mangsahan District, Ubon Ratchathani | 107.05 | 33% | Normal | 15 Nov 2026, 06:30 |
| บ้านโนนสะอาด | Chok Chai District, Nakhon Ratchasima | 177.21 | 24% | Low | 15 Nov 2026, 05:00 |
| บ้านดงสวรรค์ | Nong Kung Si District, Kalasin | 164.09 | 22% | Low | 14 Nov 2026, 06:00 |
| บ้านวังปลัด | Khu Mueang District, Buri Ram | 133.17 | – | No data | 15 Nov 2026, 05:00 |
Data from the National Hydroinformatics Data Center (ThaiWater), HII, refreshed every 10 minutes
Frequently asked questions
- Which provinces does the Mun River flow through?
- The Mun River flows through 6 provinces: Nakhon Ratchasima, Buri Ram, Surin, Roi Et, Si Sa Ket and Ubon Ratchathani.
- How long is the Mun River?
- The Mun River is about 845 km long, measured along the river on this map. Official figures can differ slightly with the method used.
- Where does the Mun River come from?
- The Mun River rises in Nakhon Ratchasima province.
- Which river does the Mun River flow into?
- The Mun River flows into the Mekong River in Ubon Ratchathani province.
- Which dams are on the Mun River?
- Dams on the Mun River on this map: Pak Mun Dam, Rasi Salai Dam, Hua Na Dam and Mun Bon Dam.
- What is the Mun River water level today?
- Of 16 gauging stations, 0 are over the bank and 1 have high water. Data as of 15 Nov 2026, 06:30.
- What is the Mun River called in Thai?
- In Thai the Mun River is แม่น้ำมูล.
Other rivers in the Mun basin
Siao RiverLam TakhongLam Phra PhloengLam Dom YaiLam Dom NoiHuai Thap ThanHuai SamranLam Se Bai