Basin Tapi
Tapi River
แม่น้ำตาปี
The longest river in southern Thailand. It rises in the Nakhon Si Thammarat Range and flows north through Surat Thani province into Ban Don Bay.
Key facts
- Length
- about 265 kmMeasured along the river on this map; official figures can differ with the method used
- Source
- Nakhon Si Thammarat province
- Flows into
- Gulf of Thailand, Surat Thani province
- Basin
- Tapi
- Provinces (2)
- Nakhon Si Thammarat, Surat Thani
- Tributaries on the map
- Phum Duang River
Tapi River water level today
8 automatic gauging stations on this river, highest water relative to the bank first. As of 29 Sep 2026, 19:30
| Station | Location | Level (m MSL) | Of bank-full | Status | Measured |
|---|---|---|---|---|---|
| บ้านหาดทรายแก้ว | Chawang District, Nakhon Si Thammarat | 23.73 | 88% | High | 29 Sep 2026, 16:00 |
| Tapi 3 | Phunphin District, Surat Thani | 0.73 | 76% | High | 29 Sep 2026, 19:30 |
| Tapi 1 | Phunphin District, Surat Thani | 0.00 | 72% | High | 29 Sep 2026, 19:30 |
| บ้านเคียนซา | Khian Sa District, Surat Thani | 1.39 | 66% | Normal | 29 Sep 2026, 18:00 |
| บ้านย่านดินแดง | Wiang Sa District, Surat Thani | 5.95 | 36% | Normal | 29 Sep 2026, 18:00 |
| บ้านควนกลาง (1) | Phipun District, Nakhon Si Thammarat | 39.64 | 29% | Low | 29 Sep 2026, 18:00 |
| Nakhon Si Thammarat 3 | Tham Phannara District, Nakhon Si Thammarat | 13.41 | 29% | Low | 29 Sep 2026, 19:30 |
| บ้านท่าข้าม | Phunphin District, Surat Thani | 0.59 | 26% | Low | 29 Sep 2026, 18:00 |
Data from the National Hydroinformatics Data Center (ThaiWater), HII, refreshed every 10 minutes
Frequently asked questions
- Which provinces does the Tapi River flow through?
- The Tapi River flows through 2 provinces: Nakhon Si Thammarat and Surat Thani.
- How long is the Tapi River?
- The Tapi River is about 265 km long, measured along the river on this map. Official figures can differ slightly with the method used.
- Where does the Tapi River come from?
- The Tapi River rises in Nakhon Si Thammarat province.
- Where does the Tapi River reach the sea?
- The Tapi River flows into the Gulf of Thailand in Surat Thani province.
- What is the Tapi River water level today?
- Of 8 gauging stations, 0 are over the bank and 3 have high water. Data as of 29 Sep 2026, 19:30.
- What is the Tapi River called in Thai?
- In Thai the Tapi River is แม่น้ำตาปี.