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ADVISORY HISTORY

Hawaii Water Quality — September 25, 2026

Hoʻokipa Beach Park: advisory recorded for September 24 in the daily history

By Safe to Swim Hawaii Team · Published September 25, 2026
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BIG ISLAND
Mostly advisory-affected, stable (0% of days without an island advisory)
↓
MAUI
-29pp worsening (50% of days without an island advisory)
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OʻAHU
Mostly advisory-affected, stable (0% of days without an island advisory)
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KAUAʻI
Mostly advisory-affected, stable (0% of days without an island advisory)

The daily history shows 1 tracked beach with no recorded advisory on September 23, 2026 and a recorded advisory on September 24, 2026: Hoʻokipa Beach Park.

These are complete calendar days; a notice counts through its cancellation date. This comparison does not establish when a notice changed, current water quality, or conditions elsewhere on the island. Check the linked beach page and current DOH notices before entering the water. A historical change does not establish swimming safety or start a waiting-period countdown.

Where the islands stand today

Big Island

mostly advisory-affected

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). 1 of our 7 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

worsening

Maui is worsening over the last 14 days (-29pp vs. the prior two weeks). 3 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 dry. A dry forecast does not establish current water quality or mean an advisory has cleared. See the Maui leaderboard for the beach-by-beach ranking.

Oʻahu

mostly advisory-affected

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

mostly advisory-affected

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 mild. Rainfall probability does not predict whether DOH will issue or lift an advisory. See the Kauaʻi leaderboard for the beach-by-beach ranking.

Historical advisory-free leaders (last 30 days)

These counts describe the recorded history. Check each beach's current status for active DOH advisories.

Anaehoʻomalu Bay (A-Bay)
30/30 days advisory-free
Check current status →
Hapuna Beach
30/30 days advisory-free
Check current status →
Kahaluʻu Bay
30/30 days advisory-free
Check current status →
Most advisory-affected tracked beaches (last 30 days)
Honoliʻi Beach
0/30 days advisory-free
30 advisory days →
Haleiwa Beach Park
12/30 days advisory-free
18 advisory days →
Sunset Beach
13/30 days advisory-free
17 advisory days →
NOAA 7-day forecast, per island tourist coast
  • Kohala Coast, Big Island: mild (peak 30%, average 17% chance of rain across the forecast periods)
  • South Maui (Wailea / Kihei): dry (peak 23%, average 12% chance of rain across the forecast periods)
  • South Shore O’ahu (Honolulu / Waikiki): mild (peak 40%, average 21% chance of rain across the forecast periods)
  • Po’ipu, Kaua’i: mild (peak 32%, average 24% chance of rain across the forecast periods)

For the always-live per-island outlook, see our Hawaii Water Quality Forecast, which regenerates daily from NOAA + DOH data.

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Live data and deeper context
Hawai’i Water Quality Data Hub — every resource in one place
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Hawaii Water Quality Forecast — 14-day trend + 7-day NOAA outlook
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Is Hawaii’s Beach Water Getting Cleaner or Dirtier? — YoY DOH data
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Cleanest Hawaii Beaches Right Now — statewide ranking
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Hawaii Citizen Water Testing — 100+ Surfrider BWTF sites
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Why Hawaii Water Turns Brown After Rain — stream-mouth data
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Hawaii Sewage Spills Today — live DOH tracker
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Where to Swim During a Brown Water Advisory
Guide →
Brown Water Advisory — live all islands + 72-hour rule
Guide →
Previous report — September 24, 2026
Archive →
Methodology: The island trend uses Hawaii DOH island-wide advisory-day history where available: a day counts as advisory-free only when no DOH advisory was recorded anywhere on that island. If island history is unavailable, the generator labels its tracked-beach-fraction fallback explicitly. The separate beach list summarizes 31 tracked beach histories. Forecast data comes from NOAA National Weather Service (api.weather.gov) at each island's primary tourist coast. This report is not a swim recommendation; always check the individual beach page and current local conditions before entering the water.