Rivers · water level now

Chao Phraya River Water Level Today, from Upstream to Downstream

Right now, 20 gauges on the Chao Phraya River: overbank 4 · high 15 · normal 1 · low 0 · highest against the bank: บ้านป้อม

  • Flows into the Gulf of Thailand
  • 20 gauges · 20 with recent data

Statistics and analysis on this page are for reference only and are not an official warning.

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Flow route and status now

Water flows from top to bottom. The dot colour shows the status of each gauge now.

  1. Source km 0
  2. The Nan River joins here Joins at about km 0
  3. The Ping River joins here Joins at about km 0
  4. Nakhon Sawan Province
  5. Chao Phraya 1 km 2.4

    High · Not overflowing · 3.81 m below the bank

  6. ค่ายจิรประวัติ km 5.4

    High · Not overflowing · 3.13 m below the bank

  7. Chao Phraya 2 km 47.9

    High · Not overflowing · 2.38 m below the bank

  8. Chai Nat Province
  9. Chao Phraya 3 km 69.1

    Normal · Not overflowing · 5.04 m below the bank

  10. Chao Phraya 4 km 83.2

    High · Not overflowing · 9 cm below the bank

  11. ท้ายเขื่อนเจ้าพระยา km 103.2

    High · Not overflowing · 65 cm below the bank

  12. Chao Phraya 5 km 118.2

    High · Not overflowing · 59 cm below the bank

  13. Sing Buri Province
  14. Chao Phraya 6 km 135.6

    High · Not overflowing · 1.55 m below the bank

  15. บ้านบางพุทรา km 153.0

    High · Not overflowing · 1.02 m below the bank

  16. Chao Phraya 7 km 169.3

    High · Not overflowing · 35 cm below the bank

  17. Ang Thong Province
  18. บ้านบางแก้ว km 197.3

    High · Not overflowing · 99 cm below the bank

  19. Chao Phraya 8 km 199.2

    High · Not overflowing · 34 cm below the bank

  20. Ayutthaya Province
  21. Chao Phraya 11 km 230.0

    Overbank · +11 cm over

  22. บ้านป้อม km 230.0

    Overbank · +1.07 m over

  23. The Pa Sak River joins here Joins at about km 238
  24. Chao Phraya 12 km 242.9

    Overbank · +80 cm over

  25. Nonthaburi Province
  26. Chao Phraya 14 km 297.5

    High · Not overflowing · 22 cm below the bank

  27. Bangkok Province
  28. กรมชลประทานสามเสน km 325.7

    High · Not overflowing · 77 cm below the bank

  29. Chao Phraya 15 km 338.7

    High · Not overflowing · 96 cm below the bank

  30. Samut Prakan Province
  31. Khlong Lat Bang Yo 1 Gate km 347.3

    High · Not overflowing · 13 cm below the bank

  32. Khlong Lat Bang Yo 2 Gate km 359.3

    Overbank · +46 cm over

  33. River mouth
  34. Gulf of Thailand

Map of the Chao Phraya River and its water level gauges

Map and river lines © OpenStreetMap

Water level gauges from upstream to downstream

No. Gauge km along the line Status now Gap to bank Measured at
1 Chao Phraya 1 Nakhon Sawan 2.4 High Not overflowing · 3.81 m below the bank −3.81 m 7 Oct 2026 14:40
2 ค่ายจิรประวัติ Nakhon Sawan 5.4 High Not overflowing · 3.13 m below the bank −3.13 m 7 Oct 2026 14:00
3 Chao Phraya 2 Nakhon Sawan 47.9 High Not overflowing · 2.38 m below the bank −2.38 m 7 Oct 2026 14:40
4 Chao Phraya 3 Chai Nat 69.1 Normal Not overflowing · 5.04 m below the bank −5.04 m 7 Oct 2026 14:40
5 Chao Phraya 4 Chai Nat 83.2 High Not overflowing · 9 cm below the bank −0.09 m 7 Oct 2026 14:40
6 ท้ายเขื่อนเจ้าพระยา Chai Nat 103.2 High Not overflowing · 65 cm below the bank −0.65 m 7 Oct 2026 14:00
7 Chao Phraya 5 Chai Nat 118.2 High Not overflowing · 59 cm below the bank −0.59 m 7 Oct 2026 14:40
8 Chao Phraya 6 Sing Buri 135.6 High Not overflowing · 1.55 m below the bank −1.55 m 7 Oct 2026 14:40
9 บ้านบางพุทรา Sing Buri 153.0 High Not overflowing · 1.02 m below the bank −1.02 m 7 Oct 2026 14:00
10 Chao Phraya 7 Sing Buri 169.3 High Not overflowing · 35 cm below the bank −0.35 m 7 Oct 2026 14:40
11 บ้านบางแก้ว Ang Thong 197.3 High Not overflowing · 99 cm below the bank −0.99 m 7 Oct 2026 14:00
12 Chao Phraya 8 Ang Thong 199.2 High Not overflowing · 34 cm below the bank −0.34 m 7 Oct 2026 14:40
13 Chao Phraya 11 Ayutthaya 230.0 Overbank +11 cm over +0.11 m 7 Oct 2026 00:40
14 บ้านป้อม Ayutthaya 230.0 Overbank +1.07 m over +1.07 m 7 Oct 2026 14:00
15 Chao Phraya 12 Ayutthaya 242.9 Overbank +80 cm over +0.80 m 7 Oct 2026 14:40
16 Chao Phraya 14 Nonthaburi 297.5 High Not overflowing · 22 cm below the bank −0.22 m 7 Oct 2026 14:40
17 กรมชลประทานสามเสน Bangkok 325.7 High Not overflowing · 77 cm below the bank −0.77 m 7 Oct 2026 14:00
18 Chao Phraya 15 Bangkok 338.7 High Not overflowing · 96 cm below the bank −0.96 m 7 Oct 2026 14:40
19 Khlong Lat Bang Yo 1 Gate Samut Prakan 347.3 High Not overflowing · 13 cm below the bank −0.13 m 7 Oct 2026 14:20
20 Khlong Lat Bang Yo 2 Gate Samut Prakan 359.3 Overbank +46 cm over +0.46 m 7 Oct 2026 14:40

Provinces with gauges on the Chao Phraya River

Rivers that join this one

Other rivers

Water Levels on Thailand's Main Rivers Today

How to read the upstream-to-downstream order

The order and distances come from where each gauge sits along the river line on the map. The gauge at the top of the list is the one closest to the source, and water passing it flows down past the next gauges in order.

The km column is an estimate along the line on the map. It shows the order of the gauges and is not the official length of the river. For some rivers the line starts below the true source. Gauges that sit far from the line are listed separately after the table.

The colour of each point shows the latest water level status against the bank. Use it as supporting information only.

FAQ

Where is the Chao Phraya River over its banks right now?

Right now the gauges on the Chao Phraya River that are over the bank are Chao Phraya 11, บ้านป้อม, Chao Phraya 12, Khlong Lat Bang Yo 2 Gate.

Where does water from the Chao Phraya River flow to?

The Chao Phraya River flows into the Gulf of Thailand.

How are the gauges on the Chao Phraya River ordered?

The 20 water level gauges on the Chao Phraya River are listed from upstream to downstream, by where each gauge sits along the river line on the map. The gauge at the top of the table is the one closest to the source, and water passing it flows down past the next gauges in order.