The National Weather Service (NWS) in Honolulu has issued a High Tide Flooding Advisory for the Hawaiian Islands, warning residents and visitors of potential minor coastal flooding through the coming days. The advisory comes amid elevated sea levels, enhanced by seasonal high tides and persistent swell activity, particularly affecting low-lying shorelines during evening high tides.
Key Highlights:
- High tide flooding expected during peak tides through at least Wednesday
- Vulnerable areas include Honolulu, Waikiki, Kahului, and Hilo
- Combined effects of king tides and ocean swell driving the advisory
- Drivers and pedestrians warned to avoid flooded roadways near the coast
According to the NWS, “Shoreline inundation may occur around the time of high tide, especially in areas with poor drainage or low elevation. Water may overtop sea walls and flood coastal roads and properties,” said a spokesperson from the Honolulu Weather Forecast Office.
Heads up: Locations along the West Coast and in Hawaii will experience higher than normal tides on and around the full moon on the 3rd, which will increase the risk of high tide flooding. See the daily likelihood of high tide flooding in your area: https://t.co/Uy38uUyDbQpic.twitter.com/KDRuLAA0yM
— NOAA’s Ocean Service (@noaaocean) December 29, 2025
The advisory follows an ongoing High Surf Advisory already in effect for north and west-facing shores of several islands, including Oahu, Molokai, and Kauai. While the surf is not the direct cause of the flooding, the coinciding swell adds pressure to an already elevated tide cycle, increasing the risk of minor flooding…