High Tide Flooding Outlook for August 2026

Posted
Last Updated

By US Harbors

Hawaii: Possible & Likely Flood Days

Kauai:

  • Nawiliwili, HI — POSSIBLE August 9-12

Oahu:

  • Mokuoloe, HI — POSSIBLE August 9-12
  • Honolulu, HI — POSSIBLE August 9-12

Maui:

  • Kahului, Kahului Harbor, HI — POSSIBLE August 9, 13; LIKELY August 10-12  (60-70%)

Hawaii, Big Island:

  • Kawaihae, HI — POSSIBLE August 8, 9, 13; LIKELY August 10-12  (55-70%)
  • Hilo, Hilo Bay, Kuhio Bay, HI — POSSIBLE August 9, 13; LIKELY August 10-12  (70-90%)

About these Predictions: “These flooding likelihoods are derived from a probabilistic model that incorporates tide predictions, sea level rise trends, and seasonal changes in coastal sea level to predict the potential that a higher than normal high tide may exceed established National Ocean Service flood thresholds. During these periods, high tide flooding may occur in flood-prone areas.” NOAA

People walking barefoot on a flooded walkway along the shore.
High tide flooding, or "sunny day flooding" makes your summer barefoot walk a new experience. Photo by Charlie Nutting