West Kaua’i

Tonight: Partly cloudy with isolated showers. Lows around 66 near the shore to around 55 above 3000 feet. Light winds. Chance of rain 20 percent.

Sunday: Partly sunny with scattered showers. Highs around 83 near the shore to around 70 above 3000 feet. Southeast winds up to 10 mph shifting to the southwest in the afternoon. Chance of rain 30 percent.

Sunday Night: Breezy. Mostly cloudy with scattered showers. Lows around 69 near the shore to around 59 above 3000 feet. Southwest winds 10 to 20 mph. Chance of rain 40 percent.

South Kaua’i

Tonight: Partly cloudy with isolated showers. Lows around 64. Light winds. Chance of rain 20 percent.

Sunday: Partly sunny with scattered showers. Highs 77 to 83. West winds 10 to 15 mph. Chance of rain 30 percent.

Sunday Night: Mostly cloudy with scattered showers. Lows around 68. Southwest winds 10 to 15 mph. Chance of rain 30 percent.

Kaua’i Mountains

Tonight: Partly cloudy with isolated showers. Lows 59 to 64 in the valleys to around 53 above 4000 feet. Light winds becoming west up to 10 mph after midnight. Chance of rain 20 percent.

Sunday: Breezy. Partly sunny with scattered showers. Highs 72 to 82 in the valleys to around 64 above 4000 feet. Southwest winds up to 10 mph increasing to up to 20 mph in the afternoon. Chance of rain 30 percent.

Sunday Night: Breezy. Mostly cloudy with scattered showers. Lows around 66 in the valleys to around 57 above 4000 feet. Southwest winds 10 to 25 mph. Chance of rain 30 percent.

North Kaua’i

Tonight: Partly cloudy with isolated showers. Lows 58 to 67. Light winds becoming south up to 10 mph after midnight. Chance of rain 20 percent.

Sunday: Partly sunny with isolated showers. Highs 75 to 82. South winds up to 15 mph shifting to the north in the afternoon. Chance of rain 20 percent.

Sunday Night: Breezy. Mostly cloudy with isolated showers. Lows 63 to 71. Southwest winds 10 to 20 mph. Chance of rain 20 percent.

East Kaua’i

Tonight: Partly cloudy with isolated showers. Lows 59 to 68. Light winds becoming west up to 10 mph after midnight. Chance of rain 20 percent.

Sunday: Breezy. Partly sunny with scattered showers. Highs 72 to 83. Southwest winds up to 20 mph. Chance of rain 30 percent.

Sunday Night: Mostly cloudy with isolated showers. Lows 64 to 73. Southwest winds 10 to 15 mph. Chance of rain 20 percent.

Detailed Forecast

Short term update

Issued at 419 PM HST Sat Jan 31 2026
Updated for hazards. High Surf Warning has been downgraded to High Surf Advisory.

Synopsis

Relatively light winds will continue through Sunday. A cold front will move in Monday evening through Tuesday, with breezy southwesterly winds ahead of the front Monday and northeast winds behind. Showers will occur with frontal passage, before it stalls out and weakens near the Big Island Wednesday. A potentially strong cold front is forecast Friday into next weekend. This may bring periods of heavy rain and thunderstorms from Friday night well into next weekend.

Aviation

Issued at 325 PM HST Sat Jan 31 2026
A weakening trough lingering near the eastern end of the state will bring periods of showers over Maui County and the Big Island through this evening. Brief periods of MVFR conditions are possible with any showers. Shower activity should decrease this evening as land breezes develop. VFR conditions are expected for Sunday as the moisture associated with the weakening trough moves further away from the state. Winds are expected to be light to moderate and generally out of the southerly direction during the Sunday.
AIRMET Sierra is in effect for tempo mountain obscuration above 2000 feet for Maui. Clouds and showers are expected to decrease this evening and the AIRMET will likely be cancelled before midnight tonight.

Marine

Issued at 325 PM HST Sat Jan 31 2026
Trades will continue to weaken this afternoon as high pressure north of the state moves eastward. These lighter trade winds will give way to southeast winds tonight as a surface ridge is pushed over the island chain. South to southwest winds will develop on Sunday and will build to fresh to strong levels Sunday night and Monday as a cold front approaches. This front is expected to pass down the island chain Monday night and Tuesday, and a Small Craft Advisory may be needed for some waters as winds peak Monday into Tuesday.
Large surf along north and west facing shores will gradually fade tonight into Sunday, with another round of elevated surf due early next week. A complex storm low far northwest of Hawaii generated overlapping west- northwest to northwest (295 to 320 degrees) swells that are currently affecting the islands, with the northwest (320 degrees) swell becoming dominant. NOAA offshore buoys northwest of Kauai have been showing these swells slowly declining throughout the day. Based on these observations and the gradual decline in swell noted at the Hanalei and Waimea nearshore buoys, decided to drop the High Surf Warning and go with a High Surf Advisory that is now in effect for north and west facing shores of Niihau, Kauai, Oahu, and Molokai, and north facing shores of Maui and west facing shores of the Big Island through 6 AM HST Sunday morning. In addition, the Small Craft Advisory for waters exposed to the elevated seas has been extended through tonight as seas are expected to remain above threshold into the evening, then slowly decline overnight. Another round of potentially larger northwest swell is expected late Monday through early Thursday.
A Coastal Flood Statement remains in effect through Monday. During this time, higher than predicted tides will produce minor flooding along vulnerable low-lying coastal infrastructure as well as some some beach erosion during peak high tides between midnight and sunrise. The elevated tides will also contribute to runup and beach erosion late tonight into early Sunday morning, along north and west shores exposed to the large swell.
Surf along east- and south-facing shores will remain small through the week.

HFO Watches/Warnings/Advisories

High Surf Advisory until 6 AM HST Sunday for Kauai North, Kauai Southwest, Kohala, Kona, Maui Central Valley North, Maui Windward West, Molokai North, Molokai West, Molokai Windward, Niihau, Oahu North Shore, Waianae Coast, Windward Haleakala.
Small Craft Advisory until 6 AM HST Sunday for Alenuihaha Channel, Big Island Windward Waters, Kaiwi Channel, Kauai Channel, Kauai Leeward Waters, Kauai Northwest Waters, Kauai Windward Waters, Maui County Windward Waters, Oahu Windward Waters.

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Data Courtesy of NOAA.gov