Maui share of days with no DOH advisory anywhere on the island rose 43pp between 14-day windows
The share of days with no DOH advisory anywhere on Maui rose 43 percentage points (21% in the prior 14-day window vs. 64% in the latest 14-day window).
This is a posted-advisory history metric, not a direct bacteria test or swimming-safety finding. Check the Maui leaderboard, the individual beach page, and live DOH status for current context.
Big Island has remained mostly advisory-affected across both 14-day island-wide advisory-day windows (0% of days had no DOH advisory anywhere on the island in the latest window). All 7 of our tracked beaches on the island recorded one or more advisory days in that 30-day history window. NOAA's 7-day rainfall signal is mild. Rainfall probability does not predict whether DOH will issue or lift an advisory. See the Big Island leaderboard for the beach-by-beach ranking.
Maui is improving over the last 14 days (+43pp vs. the prior two weeks). 6 of our 6 tracked beaches on the island recorded one or more advisory days in that 30-day history window. NOAA's 7-day rainfall signal is mild. Rainfall probability does not predict whether DOH will issue or lift an advisory. See the Maui leaderboard for the beach-by-beach ranking.
Oʻahu has remained mostly advisory-affected across both 14-day island-wide advisory-day windows (0% of days had no DOH advisory anywhere on the island in the latest window). All 12 of our tracked beaches on the island recorded one or more advisory days in that 30-day history window. NOAA's 7-day rainfall signal is mild. Rainfall probability does not predict whether DOH will issue or lift an advisory. See the Oʻahu leaderboard for the beach-by-beach ranking.
Kauaʻi has remained mostly advisory-affected across both 14-day island-wide advisory-day windows (0% of days had no DOH advisory anywhere on the island in the latest window). All 6 of our tracked beaches on the island recorded one or more advisory days in that 30-day history window. NOAA's 7-day rainfall signal is wet (peak 69% chance of rain). Rain can increase runoff risk; check current DOH advisories and local conditions. See the Kauaʻi leaderboard for the beach-by-beach ranking.
These counts describe the recorded history. Check each beach's current status for active DOH advisories.
For the always-live per-island outlook, see our Hawaii Water Quality Forecast, which regenerates daily from NOAA + DOH data.
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