West Kaua’i

Today: Mostly sunny. Isolated showers in the morning. Highs 79 to 84 near the shore to around 72 above 3000 feet. East winds up to 10 mph shifting to the south in the afternoon. Chance of rain 20 percent.

Tonight: Mostly clear. Lows around 68 near the shore to around 58 above 3000 feet. Light winds.

Wednesday: Sunny. Highs 80 to 85 near the shore to around 72 above 3000 feet. Northeast winds up to 10 mph shifting to the southwest around 10 mph in the afternoon.

South Kaua’i

Today: Mostly sunny. Isolated showers in the morning. Highs 78 to 84. East winds up to 10 mph shifting to the southwest in the afternoon. Chance of rain 20 percent.

Tonight: Mostly clear. Lows around 67. West winds around 10 mph.

Wednesday: Sunny. Highs 79 to 85. West winds 10 to 15 mph.

Kaua’i Mountains

Today: Mostly sunny in the morning then becoming partly sunny. Isolated showers. Highs 73 to 80 in the valleys to around 66 above 4000 feet. Light winds. Chance of rain 20 percent.

Tonight: Partly cloudy with isolated showers. Lows 60 to 67 in the valleys to around 57 above 4000 feet. Light winds. Chance of rain 20 percent.

Wednesday: Sunny with isolated showers. Highs 74 to 81 in the valleys to around 67 above 4000 feet. Southwest winds up to 10 mph. Chance of rain 20 percent.

North Kaua’i

Today: Mostly sunny with isolated showers. Highs 74 to 82. Light winds. Chance of rain 20 percent.

Tonight: Mostly clear. Isolated showers in the evening. Lows 62 to 70. Light winds. Chance of rain 20 percent.

Wednesday: Sunny. Highs 75 to 82. East winds up to 10 mph shifting to the north in the afternoon.

East Kaua’i

Today: Mostly sunny with isolated showers. Highs 74 to 83. South winds up to 15 mph. Chance of rain 20 percent.

Tonight: Mostly clear. Lows 62 to 71. West winds up to 10 mph in the evening becoming light.

Wednesday: Sunny. Highs 75 to 84. Southwest winds up to 15 mph.

Detailed Forecast

Short term update

Issued at 912 AM HST Tue Jan 27 2026
The forecast remains on track. However the pops (probability of precipitation) and cloud cover were bumped up this morning for leeward and southeastern portions of the Big Island due to lingering clouds and showers seen on radar and satellite. Additionally, the interior portions of the Big Island may see slightly more showers in the afternoon than the rest of the islands.

Aviation

Issued at 912 AM HST Tue Jan 27 2026
VFR conditions will prevail today. Isolated showers can be expected over windward and interior areas with light land and sea breeze development this afternoon which could temporarily lower ceilings and visibilities to MVFR.

Synopsis

Ridging aloft will bring us a couple days of weak sea-breeze winds and limited showers. A weak front is forecast to slowly cross the state from Thursday night through Saturday night, increasing showers from west to east. Sunday will become more humid as southerly winds increase ahead of yet another front. This one will move in Monday through Monday night, and has the potential to bring strong winds and heavy rain.

Prev discussion

.PREV DISCUSSION… Issued at 311 AM HST Tue Jan 27 2026
Skies were partly to mostly cloudy across the state this morning, with little in the way of showers showing up on radar. Rainfall reports indicated that very light rain was falling on parts of Kauai, Oahu, and southeast Big Island. Winds were light and mostly southeast or downslope.
Upper level ridging extending into the region from the west will hold firm through Wednesday night. Thursday, weak northwest flow aloft builds south into the area just far enough to push a weak front slowly through the state Thursday night through Saturday night.
The influence of the ridge today and Wednesday will bring us light winds, allowing sea- and land-breezes to develop each day and night, respectively. Showers will be isolated to scattered and largely determined by weak southeast surface winds and interactions of sea-breezes and terrain.
As a weak cold front moves in Thursday night, reaching Kauai County around midnight. There will be a minimal increase in showers and winds will become north and then northeast. This slow-moving front is expected to reach Oahu Friday, Maui County Friday evening, and the Big Island Friday overnight. It is forecast to stall near Big Island Saturday, then pull north Sunday.
Sunday, as yet another, stronger, front moves toward the state, southerly winds ahead of it will bring enhanced moisture into the area, leading to an increase in humidity and showers. Monday into Monday night, as the front moves into the state, winds ahead of it will become southwest and could become strong. The potential exists for strong winds and brief heavy rain, even as there is still model disagreement on how far into the state the front will progress.

Marine

Issued at 311 AM HST Tue Jan 27 2026
Light winds will prevail through Thursday as the surface ridge settles southward over the islands. The background flow will remain out of the southeast for Maui and the Big Island waters and out of the south to southwest over the Kauai and Oahu waters. While most coastal areas will experience typical overnight land breezes and afternoon sea breezes, terrain-induced accelerations will lead to brief periods of locally enhanced winds where the flow parallels to the coast, particularly through the afternoon hours. Moderate to fresh northerly winds will gradually fill in on Friday as a cold front moves into the area.
Surf along north- and west-facing shores will trend up through the day as a medium-period northwest swell builds down the island chain. Heights could near the advisory levels by tonight before gradually easing Wednesday into Thursday.
A larger northwest swell is expected later this week from a broad and complex low over the far northwest Pacific. Latest analysis and satellite imagery show a 966 mb low centered east of the Kurils, with a large area of gale- to storm-force winds focused at the islands within the 290 to 320 degree directional bands. This swell will begin building down the island chain Thursday and could become a long-duration event, with a peak centered around the Friday through Saturday time frame. Heights will exceed advisory levels by late Thursday afternoon, then exceed warning levels Friday into Saturday.
Surf along east-facing shores will remain small each day due to a combination of the local winds shifting southerly and the lack of trades upstream of the state.
Surf along south-facing shores will trend up slightly today as a background, long-period south swell arrives. Offshore buoys to the south have started showing this pulse within the 15 to 17 second bands. This swell will ease by mid week.

HFO Watches/Warnings/Advisories

None.

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Data Courtesy of NOAA.gov