Rivers of Thailand

Basin Kok

Mae Lao River

น้ำแม่ลาว

A tributary of the Kok River in Chiang Rai province.

Map of the Mae Lao RiverChiang RaiPhayao
The dark line is this river; the mid-blue lines are its named tributaries.

Key facts

Length
about 195 kmMeasured along the river on this map; official figures can differ with the method used
Source
Chiang Rai province
Flows into
Kok River, Chiang Rai province
Basin
Kok
Provinces (1)
Chiang Rai

Mae Lao River water level today

7 automatic gauging stations on this river, highest water relative to the bank first. As of 29 Sep 2026, 21:50

StationLocationLevel (m MSL)Of bank-fullStatusMeasured
บ้านหนองผำMae Suai District, Chiang Rai434.2643%Normal29 Sep 2026, 21:00
Bridge over the Lao River - Ban Pa SakWiang Pa Pao District, Chiang Rai544.7639%Normal29 Sep 2026, 21:50
Chaing Rai 4Mae Suai District, Chiang Rai451.6136%Normal29 Sep 2026, 21:50
Lao River Slow Bridge - Ban HongWiang Pa Pao District, Chiang Rai587.6228%Low29 Sep 2026, 21:50
Chaing Rai 1Mueang Chiang Rai District, Chiang Rai401.3927%Low29 Sep 2026, 21:50
บ้านดอนสลีMae Suai District, Chiang Rai462.4523%Low29 Sep 2026, 06:00
Maenam Lao BridgeWiang Pa Pao District, Chiang Rai663.348%Critically low29 Sep 2026, 21:50

Data from the National Hydroinformatics Data Center (ThaiWater), HII, refreshed every 10 minutes

Frequently asked questions

Which provinces does the Mae Lao River flow through?
The Mae Lao River flows through 1 provinces: Chiang Rai.
How long is the Mae Lao River?
The Mae Lao River is about 195 km long, measured along the river on this map. Official figures can differ slightly with the method used.
Where does the Mae Lao River come from?
The Mae Lao River rises in Chiang Rai province.
Which river does the Mae Lao River flow into?
The Mae Lao River flows into the Kok River in Chiang Rai province.
What is the Mae Lao River water level today?
Of 7 gauging stations, 0 are over the bank and 0 have high water. Data as of 29 Sep 2026, 21:50.
What is the Mae Lao River called in Thai?
In Thai the Mae Lao River is น้ำแม่ลาว.

Other rivers in the Kok basin

Kok RiverFang River