Lake levels
Ka Loko Reservoir, HI
- gauge height
- 20.12 ft
- Condition
- High for this time of year
- 7-day change
- -2.57 ft
- 30-day change
- -1.62 ft
- 1-year change
- +3.06 ft
Reading as of 2026-10-12 | the U.S. Geological Survey
- Since yesterday
- -0.37 ft
- 7-day change
- -2.57 ft
- 30-day change
- -1.62 ft
- 1-year change
- +3.06 ft
- Record high
- 23.50 ft
In brief
Ka Loko Reservoir's gauge read 20.12 feet on Oct 12, 2026. That is higher than 85% of October readings since 2006.
Source: U.S. Geological Survey
Gauge height above a local reference point; not elevation above sea level.
Lake level timeline
Records and averages
| Current level | 20.12 ft |
|---|---|
| Record high | 23.50 ft (2026-10-02) |
| Record low | 17.05 ft (2025-07-08) |
| Average of all readings | 19.36 ft |
| Data span | 20 years (7,404 readings) |
Level schematic
Frequently asked questions
Is Ka Loko Reservoir full right now?
As of 2026-10-12, Ka Loko Reservoir sits at 20.12 ft, which is high for this time of year. Over the past 30 days the level has fallen 1.62 ft.
What is the water level at Ka Loko Reservoir today?
The most recent reading at Ka Loko Reservoir is 20.12 ft (2026-10-12), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Ka Loko Reservoir has ever been?
The highest level for Ka Loko Reservoir in our records is 23.50 ft on 2026-10-02. The lowest is 17.05 ft on 2025-07-08. Our record covers about 20 years of readings.
Is Ka Loko Reservoir low for this time of year?
Compared with every October in our records, the current level is higher than 85% of them, which we classify as high for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.
Why is Ka Loko Reservoir low right now?
Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Ka Loko Reservoir has fallen 1.62 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.
How much has Ka Loko Reservoir changed over the past year?
Ka Loko Reservoir is +3.06 ft compared with this date last year (20.12 ft today). The full-history chart above covers 20 years, with a record high of 23.50 ft and a record low of 17.05 ft.
Download and cite
Quote this reading
Ka Loko Reservoir's gauge read 20.12 feet on Oct 12, 2026. That is higher than 85% of October readings since 2006.
Download the full record
ka-loko-reservoir-hi-water-level-history.csv
How to cite
MyWaterLevel, “Ka Loko Reservoir water level, 2006 to 2026,” data from U.S. Geological Survey, https://mywaterlevel.com/lake/hi/ka-loko-reservoir/, accessed Oct 13, 2026.
Source: the U.S. Geological Survey. All Hawaii lake levels. Readings are provisional and may be revised. About our data and methods.