Basin Mae Klong
Khwae Noi River
แม่น้ำแควน้อย
Rises in the Tenasserim Hills in Sangkhla Buri district and is dammed by the Vajiralongkorn Dam. It joins the Khwae Yai River at Kanchanaburi town to form the Mae Klong River.
Key facts
- Length
- about 250 kmMeasured along the river on this map; official figures can differ with the method used
- Source
- Kanchanaburi province
- Flows into
- Mae Klong River, Kanchanaburi province
- Basin
- Mae Klong
- Provinces (2)
- Tak, Kanchanaburi
- Dams on the river
- Vajiralongkorn Dam
Khwae Noi River water level today
17 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 |
|---|---|---|---|---|---|
| บ้านปากแซง | Sai Yok District, Kanchanaburi | 53.79 | 187% | Over the bank | 29 Sep 2026, 18:00 |
| บ้านลุ่มสุ่ม | Sai Yok District, Kanchanaburi | 46.73 | 146% | Over the bank | 29 Sep 2026, 18:00 |
| บ้านวังเย็น | Dan Makham Tia District, Kanchanaburi | 31.73 | 102% | Over the bank | 29 Sep 2026, 18:00 |
| บ้านลุ่มสุ่ม (K.10) | Sai Yok District, Kanchanaburi | 47.01 | 98% | High | 29 Sep 2026, 19:00 |
| บ้านหินดาด | Thong Pha Phum District, Kanchanaburi | 70.25 | 86% | High | 29 Sep 2026, 19:00 |
| Sai Yok | Sai Yok District, Kanchanaburi | 43.69 | 83% | High | 29 Sep 2026, 19:30 |
| บ้านปากแซง (K.58) | Sai Yok District, Kanchanaburi | 53.84 | 82% | High | 29 Sep 2026, 18:00 |
| Nakhon Thai | Nakhon Thai District, Phitsanulok | 201.00 | 78% | High | 29 Sep 2026, 19:30 |
| บ้านแสนตอ | Mueang Uttaradit District, Uttaradit | 66.47 | 76% | High | 29 Sep 2026, 19:00 |
| บ้านหนองกระท้าว | Nakhon Thai District, Phitsanulok | 197.45 | 74% | High | 29 Sep 2026, 18:00 |
| บ้านลิ่นถิ่น (K.54) | Thong Pha Phum District, Kanchanaburi | 67.02 | 70% | Normal | 29 Sep 2026, 19:00 |
| Lin Thin | Sai Yok District, Kanchanaburi | 64.82 | 47% | Normal | 29 Sep 2026, 19:30 |
| บ้านแก่งบัวคำ | Chat Trakan District, Phitsanulok | 162.99 | 42% | Normal | 29 Sep 2026, 18:00 |
| อ.วัดโบสถ์ (N.22A) | Wat Bot District, Phitsanulok | 42.48 | 31% | Normal | 29 Sep 2026, 19:00 |
| อ.ทองผาภูมิ | Thong Pha Phum District, Kanchanaburi | 79.73 | 30% | Low | 29 Sep 2026, 19:00 |
| บ้านท่างาม | Wat Bot District, Phitsanulok | 42.45 | 29% | Low | 29 Sep 2026, 18:00 |
| บ้านวังเย็น (K.37) | Dan Makham Tia District, Kanchanaburi | 18.22 | 1% | Critically low | 29 Sep 2026, 19:00 |
Data from the National Hydroinformatics Data Center (ThaiWater), HII, refreshed every 10 minutes
Frequently asked questions
- Which provinces does the Khwae Noi River flow through?
- The Khwae Noi River flows through 2 provinces: Tak and Kanchanaburi.
- How long is the Khwae Noi River?
- The Khwae Noi River is about 250 km long, measured along the river on this map. Official figures can differ slightly with the method used.
- Where does the Khwae Noi River come from?
- The Khwae Noi River rises in Kanchanaburi province.
- Which river does the Khwae Noi River flow into?
- The Khwae Noi River flows into the Mae Klong River in Kanchanaburi province.
- Which dams are on the Khwae Noi River?
- Dams on the Khwae Noi River on this map: Vajiralongkorn Dam.
- What is the Khwae Noi River water level today?
- Of 17 gauging stations, 3 are over the bank and 7 have high water. Data as of 29 Sep 2026, 19:30.
- What is the Khwae Noi River called in Thai?
- In Thai the Khwae Noi River is แม่น้ำแควน้อย.