Island forecast
Anahola, Kaua`i Weather
Clear daily guidance, radar access and the latest regional weather reporting in one place.
- Change Towns
- Anahola
- Lihue
- Princeville
- Waimea
Multi-day outlook
Forecast timeline
Scroll for the full forecast
Tonight
Memorial Day
Monday Night
Tuesday
Tuesday Night
Wednesday
Wednesday Night
Thursday
Thursday Night
Friday
Friday Night
Saturday
Saturday Night
Sunday
Latest Weather News
Weather RadarRegional forecast
Regional Kaua`i Weather Forecast May 25, 2026
West Kaua’i
Tonight: Breezy. Partly cloudy with isolated showers. Lows around 69 near the shore to around 59 above 3000 feet. Northeast winds up to 20 mph. Chance of rain 20 percent.
Memorial Day: Breezy. Mostly sunny with isolated showers. Highs 82 to 87 near the shore to around 74 above 3000 feet. East winds up to 20 mph. Chance of rain 20 percent.
Monday Night: Partly cloudy with isolated showers. Lows around 69 near the shore to around 60 above 3000 feet. East winds 10 to 15 mph. Chance of rain 20 percent.
South Kaua’i
Tonight: Breezy. Mostly cloudy with scattered showers. Lows 68 to 73. Northeast winds 15 to 25 mph. Chance of rain 50 percent.
Memorial Day: Partly sunny. Breezy. Scattered showers in the morning, then isolated showers in the afternoon. Highs 77 to 86. Northeast winds 15 to 20 mph. Chance of rain 50 percent.
Monday Night: Breezy. Mostly cloudy with scattered showers. Lows 68 to 73. Northeast winds 15 to 20 mph. Chance of rain 50 percent.
Kaua’i Mountains
Tonight: Mostly cloudy. Breezy. Scattered showers in the evening, then showers after midnight. Lows 62 to 67 in the valleys to around 58 above 4000 feet. East winds up to 25 mph. Chance of rain 80 percent.
Memorial Day: Breezy. Mostly cloudy with scattered showers. Highs 71 to 78 in the valleys to around 64 above 4000 feet. East winds 10 to 20 mph. Chance of rain 50 percent.
Monday Night: Mostly cloudy. Breezy. Scattered showers in the evening, then showers after midnight. Lows around 65 in the valleys to around 58 above 4000 feet. East winds 10 to 20 mph. Chance of rain 80 percent.
North Kaua’i
Tonight: Breezy. Mostly cloudy with scattered showers. Lows 61 to 71. East winds 10 to 20 mph. Chance of rain 50 percent.
Memorial Day: Partly sunny. Scattered showers in the morning, then isolated showers in the afternoon. Highs 68 to 83. East winds up to 15 mph increasing to 10 to 15 mph in the afternoon. Chance of rain 50 percent.
Monday Night: Mostly cloudy with scattered showers. Lows 61 to 72. East winds 10 to 15 mph. Chance of rain 50 percent.
East Kaua’i
Tonight: Breezy. Mostly cloudy with scattered showers. Lows 64 to 73. Northeast winds 10 to 20 mph. Chance of rain 50 percent.
Memorial Day: Partly sunny. Scattered showers in the morning, then isolated showers in the afternoon. Highs 74 to 82. Northeast winds 10 to 15 mph. Chance of rain 50 percent.
Monday Night: Mostly cloudy. Scattered showers in the evening, then numerous showers after midnight. Lows 65 to 73. Northeast winds 10 to 15 mph. Chance of rain 70 percent.
Detailed Forecast
Synopsis
A broad ridge north of the Hawaiian Islands will dominate our weather for at least the next seven days, with moderate to locally strong easterly trade winds and only subtle day to day wind speed changes. A weak and narrow upper level trough will remain over the region, keeping periods of trade wind showers in the forecast. These passing showers will favor windward and mountain areas in the overnight to early morning hours.
Discussion
Radar indicates isolated mostly light showers occurring windward and mauka this afternoon. Cloud cover runs the gamut from sunny to overcast, with most of the clouds also windward and mauka. Winds were on the breezy side, with sustained winds averaging 10-20 mph and numerous gusts of 25 to 35 mph (in those areas especially prone to stronger trade winds).
Trade winds will continue through the next week as a surface high will remain to our north. The high will undergo some evolution through the week, as one center is eventually replaced by another. But we really won't notice the difference as the result will simply be a continuation of moderate to breezy trades, along with typical trade wind showers. These showers will be on the light side because moisture is rather limited. Although it is possible that a band of moisture may move toward us later this week, the latest guidance puts the best chance out beyond the next 7 days.
Aviation
Moderate to breezy trade winds will continue for the next few days. Low ceilings and passing showers will be possible over windward and mountain locations. Although MVFR conditions will be possible within passing showers, VFR should prevail for most locations.
AIRMET Sierra is in effect for tempo mountain obscuration for N through SE sections of Kauai this afternoon due to low clouds and passing showers. This AIRMET may be dropped later this evening as coverage of clouds and showers lessens.
AIRMET Tango remains in effect for moderate low-level turbulence over and downwind of island terrain. This AIRMET will likely be needed for at least the next few days.
Marine
Central Pacific high pressure at all levels will greatly influence the Hawaiian Island nearshore water forecast this week. A stable and relatively drier environment will ensure isolated daytime showers and overnight scattered showers as higher pockets of moisture stream in on established trade flow. Trades will remain moderate to fresh, locally strong through eastern island bays and channels, in the foreseeable future.
Surf along south-facing shores will very subtly decline Monday as a very small, medium period south swell lingers. A slightly higher longer period south swell will arrive Tuesday, then build surf to near early summertime averages through mid week before slowly fading out Thursday. A large fetch of 40-plus knot winds currently generating 25 to 30 foot seas southeast of New Zealand is aimed toward Hawaii along southern great circle directional routes. This should push in a significant size, long period south southwest swell later this week. South and better exposed west-facing shore surf will begin building Friday and may peak at or slightly above high surf advisory levels next weekend.
North and west-facing shore surf has and will hold through Monday in response to the latest small north northwest swell that arrived this past Friday. A late season storm force low in the northwest Pacific low moving just south of the Aleutian Islands will focus its energy southeast of its easterly track. The resultant small, medium period swell will arrive late Tuesday and gradually fill in around the islands through Wednesday. Above seasonal average north and west-facing shore surf is expected Wednesday into Thursday.
East-facing exposures will still experience a short period wind wave chop the next few days. Seas will become less rough into mid week as trades begin to slightly ease.
HFO Watches/Warnings/Advisories
Small Craft Advisory until 6 AM HST Monday for Big Island Windward Waters, Kaiwi Channel, Kauai Channel, Kauai Leeward Waters, Kauai Northwest Waters, Kauai Windward Waters, Maui County Leeward Waters, Maui County Windward Waters, Oahu Leeward Waters, Oahu Windward Waters.
Small Craft Advisory until 6 PM HST Tuesday for Alenuihaha Channel, Big Island Leeward Waters, Big Island Southeast Waters, Maalaea Bay, Pailolo Channel.
Kauai Now Weather is brought to you by Blue Hawaiian Helicopters.
Check out their Kaua‘i Helicopter Tours today!
Data Courtesy of NOAA.gov
