Hawaii Lake Levels
Current water level for 7 lakes and reservoirs in Hawaii, updated daily from public agency data.
Hawaii lake register
Alphabetical current readings from public water agencies
| Lake / reservoirLake / reservoir | Current levelLevel | 7-day change7-day |
|---|---|---|
| Helemano 6 Reservoir | 23.11 ft23.1 ft | +0.25 ft+0.2 ft |
| Ka Loko Reservoir | 20.12 ft20.1 ft | -2.57 ft-2.6 ft |
| Kemoo 5 Reservoir | 14.58 ft14.6 ft | +0.15 ft+0.1 ft |
| Koolau Reservoir | 6.24 ft6.2 ft | -0.09 ft-0.1 ft |
| Ku Tree Reservoir | 17.19 ft17.2 ft | +0.00 ft+0.0 ft |
| Upper Helemano Reservoir | 43.72 ft43.7 ft | +0.60 ft+0.6 ft |
| Wahiawa Reservoir | 53.78 ft53.8 ft | +6.49 ft+6.5 ft |
Scroll across the table for all readings →
Hawaii lake levels: common questions
Are Hawaii lakes low right now?
2 of the 6 Hawaii lakes with enough history to compare are in the bottom quarter of their own October record. That seasonal comparison matters more than the raw level: reservoirs are drawn down on a schedule, so a lake several feet below full pool in October may still be entirely normal for the date.
Which Hawaii lake has changed most this week?
Wahiawa Reservoir has risen the most, +6.49 ft over seven days, and Ka Loko Reservoir has fallen the most at -2.57 ft.
How often do Hawaii lake levels update?
Each gauge publishes on its own schedule. Most report at least daily, some hourly. This page is rebuilt every day from the U.S. Geological Survey, and the number on an individual lake's page refreshes again in your browser when the agency posts a newer reading. Readings are provisional and can be revised.