Major dams · daily data
Dam Water Levels Today — Major Dams in Thailand
- All dams combined 82.4% of capacity 58,357 million m³
- Dams above 80% 17 dams
- Dams at or below 30% 0 dams
- Data date
35 major dams hold 58,357 million m³ in total, 82.4% of capacity · today's total inflow is 308.1 million m³ and total release 167.8 million m³. ·
Statistics and analysis on this page are for reference only and are not an official warning.
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Dams by region
Sorted from fullest within each region · % of normal storage capacity · inflow/release in million m³ for that dayNorth 8 dams · 73.6% of capacity combined
| Dam | Storage (% of capacity) | Volume (million m³) | Inflow | Release |
|---|---|---|---|---|
| Kiew Kor MahLampang | 96.0% High | 163.1 | 0.39 | 0.39 |
| Mae Ngat Somboon ChonChiang Mai | 93.7% High | 248.1 | 0.76 | 0.42 |
| Kiew LomLampang | 90.0% High | 95.58 | 2.31 | 2.96 |
| SirikitUttaradit | 80.7% High | 7,678 | 14.75 | 6.99 |
| Khwae Noi Bamrung DaenPhitsanulok | 76.6% Moderate | 719.4 | 5.55 | 0.86 |
| Mae MokLampang | 75.6% Moderate | 83.12 | 2.61 | 0.09 |
| Mae Kuang Udom TharaChiang Mai | 70.0% Moderate | 184.2 | 0.47 | 1.03 |
| BhumibolTak | 67.6% Moderate | 9,097 | 36.39 | 1.00 |
Northeast 12 dams · 67.8% of capacity combined
| Dam | Storage (% of capacity) | Volume (million m³) | Inflow | Release |
|---|---|---|---|---|
| SirindhornUbon Ratchathani | 93.0% High | 1,829 | 5.09 | 1.40 |
| Lam Phra PloengNakhon Ratchasima | 81.0% High | 125.6 | 1.41 | 1.45 |
| ChulabhornChaiyaphum | 78.5% Moderate | 128.8 | 1.22 | 0.00 |
| Lam TakhongNakhon Ratchasima | 74.7% Moderate | 234.8 | 2.41 | 0.00 |
| Huai LuangUdon Thani | 64.7% Moderate | 87.64 | 0.05 | 0.08 |
| Nam OumSakon Nakhon | 62.4% Moderate | 324.4 | 2.55 | 0.00 |
| Lam SaeNakhon Ratchasima | 62.2% Moderate | 171.0 | 1.46 | 0.03 |
| Lam PaoKalasin | 61.3% Moderate | 1,213 | 11.61 | 4.05 |
| Mun BonNakhon Ratchasima | 58.0% Moderate | 81.79 | 0.43 | 0.02 |
| Ubol RatanaKhon Kaen | 55.0% Moderate | 1,336 | 19.02 | 1.60 |
| Nam PungSakon Nakhon | 51.7% Moderate | 85.27 | 0.50 | 0.00 |
| Lam Nang RongBuriram | 49.7% Low | 60.39 | 0.47 | 0.00 |
Central 3 dams · 90.7% of capacity combined
| Dam | Storage (% of capacity) | Volume (million m³) | Inflow | Release |
|---|---|---|---|---|
| Pa Sak JolasidSaraburi | 109.8% Above capacity | 957.1 | 34.38 | 43.20 |
| Thap SalaoUthai Thani | 70.6% Moderate | 113.0 | 2.50 | 0.00 |
| Kra SiewSuphan Buri | 45.6% Low | 136.5 | 3.18 | 0.06 |
East 6 dams · 94.6% of capacity combined
| Dam | Storage (% of capacity) | Volume (million m³) | Inflow | Release |
|---|---|---|---|---|
| Nong Pla LaiRayong | 105.0% Above capacity | 171.9 | 1.99 | 0.30 |
| Pra SaeRayong | 97.8% High | 288.4 | 8.17 | 13.61 |
| NaruebodindrachindaPrachinburi | 97.3% High | 287.1 | 1.65 | 0.00 |
| Khun Dan Prakan ChonNakhon Nayok | 95.6% High | 214.1 | 4.64 | 3.66 |
| Khlong SiyatChachoengsao | 89.5% High | 376.0 | 8.77 | 16.62 |
| Bang PhraChonburi | 82.2% High | 96.21 | 0.46 | 0.33 |
West 2 dams · 96.9% of capacity combined
| Dam | Storage (% of capacity) | Volume (million m³) | Inflow | Release |
|---|---|---|---|---|
| VajiralongkornKanchanaburi | 99.0% High | 8,775 | 41.43 | 40.38 |
| SrinagarindKanchanaburi | 95.9% High | 17,012 | 59.83 | 2.01 |
South 4 dams · 73.0% of capacity combined
| Dam | Storage (% of capacity) | Volume (million m³) | Inflow | Release |
|---|---|---|---|---|
| Kaeng KrachanPhetchaburi | 102.2% Above capacity | 725.9 | 10.33 | 10.80 |
| PranburiPrachuap Khiri Khan | 82.5% High | 322.4 | 11.18 | 7.45 |
| RatchapraphaSurat Thani | 74.2% Moderate | 4,187 | 6.40 | 3.01 |
| Bang LangYala | 51.4% Moderate | 748.0 | 3.71 | 3.98 |
Fullest and lowest dams right now
Fullest relative to capacity
- Pa Sak Jolasid 109.8% Above capacity · Saraburi
- Nong Pla Lai 105.0% Above capacity · Rayong
- Kaeng Krachan 102.2% Above capacity · Phetchaburi
Lowest relative to capacity
- Kra Siew 45.6% Low · Suphan Buri
- Lam Nang Rong 49.7% Low · Buriram
- Bang Lang 51.4% Moderate · Yala
Map of major dams and water levels
Coloured circles = dams (number = % of capacity) · tap a circle for details · small dots = river gauges
Map © OpenStreetMap
How to read dam figures
Dam storage classes (same colours as the map)
- Above capacityAbove 100%
- High80–100%
- Moderate50–80%
- Low30–50%
- Critically lowUp to 30%
The percentage is the water volume in the dam compared with its normal storage capacity, so dams of different sizes can be compared. Volume in million cubic metres (million m³) is the actual amount of water.
Inflow is the water flowing into the reservoir that day; release is the water let out of the dam. When inflow exceeds release, storage usually rises; when release exceeds inflow, storage usually falls.
Above 100% does not mean the dam is failing. It means the water is above the normal storage level, so more water is usually released, which can raise river levels below the dam. Check the downstream gauges as well.
Dam water and flooding — what else to check
Dam storage shows how much water is held behind each dam. Flood risk in an area depends on river and canal levels compared with their banks. When a dam is nearly full and releases more water, gauges below the dam usually rise afterwards.
FAQ
How much water is in Thailand's major dams now?
As of 5 Oct, 35 major dams hold 58,357 million m³ in total, 82.4% of capacity. 17 dams are above 80% and 0 are at or below 30%.
Which dam is fullest and which is lowest?
Relative to capacity, the fullest is Pa Sak Jolasid Dam (109.8%) and the lowest is Kra Siew Dam (45.6%). See all dams in the regional tables above.
How is the percentage of capacity calculated?
It is the water volume divided by the dam's normal storage capacity, times one hundred, so it can exceed 100% when water is above the normal storage level.
Can this be used as an official warning?
No. This site is for monitoring only. For warnings and dam releases, follow announcements from local government agencies.