HAWAII FLOW REPORT
Last Updated: December 25, 2025
Streamflow levels across
Hawaii
are currently
62.0% of normal, with the
Sf Wailua River Nr Lihue
reporting the highest discharge in the state with
601cfs and gauge stage of 5.78 ft.
Meanwhile, the
Sf Wailua River Nr Lihue
is seeing a spike in streamflows today after experiencing a
642.89%
increase since yesterday, and currently running at
601cfs.
Maximum gauge stage in the state was last observed at the
Waiahole Stream Above Kamehameha Hwy, currently reporting a stage of
8.75ft.
The
Wainiha River Nr Hanalei
in the
Kauai
watershed
is surging for this time of year at
239cfs, about
48.51% of normal.
Hawaii's hydrology is characterized by limited surface water due to high evapotranspiration rates and steep topography. Major surface flows include the Wailuku, Wailoa, and Kailua streams on the island of Hawaii, and the Hanalei and Wailua rivers on Kauai. The state has several reservoirs and dams, with the largest being the Kaloko Reservoir on Kauai. Hawaii's climate is tropical, with rainfall varying greatly across the islands and between seasons. The leeward sides of the islands are generally dry, while the windward sides receive more moisture. Watershed health is crucial to maintain water quality and quantity, with some watersheds experiencing degradation due to land use changes and invasive species. Snowpack is not relevant to hydrology in Hawaii due to its location in the tropics.