WHEN.SURF FORECAST Kahe & Nānākuli

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tomorrow

🌅6-10a 😴 Swell 0/10Wind 030° 5kt

Small, highly filtered south swell should leave mostly knee-high surf, with infrequent thigh-high pulses near the better peaks. Light NNE wind is favorable but a little short-period texture remains. The 0.0 ft morning low tide can make the shallow shelf and shorebreak more abrupt, so expectations should stay low.

  • Typical waves:knee
  • Sets:thigh, sparse
  • Surface:textured
  • Wind:030° 5kt ☁️
  • Tide:▼0.0ft 8:48a
  • Spectrum:
    • 195° 1.5ft 14s
10a-2p 😴 Swell 0/10Wind 010° 5kt

Knee-high surf remains the main story, with occasional thigh-high south-swell pulses but long waits between them. North winds stay light through much of the period, though they begin increasing later in the afternoon. The rising tide will soften the already small surf around Kahe and Nānākuli.

  • Typical waves:knee
  • Sets:thigh, sparse
  • Surface:textured
  • Wind:010° 5kt ☁️
  • Tide:▲2.1ft 4:20p
  • Spectrum:
    • 195° 1.6ft 14s
2-8p🌙 😴 Swell 0/10Wind 020° 11G14kt

Small knee-high surf continues, with isolated thigh-high sets possible but not much dependable shape. NNE wind strengthens during the afternoon, adding texture despite its generally offshore angle. A high tide near mid-afternoon further reduces the small-break potential. Mostly cloudy skies and a passing shower remain possible.

  • Typical waves:knee
  • Sets:thigh, sparse
  • Surface:textured
  • Wind:020° 11G14kt ☁️
  • Tide:▲2.1ft 4:20p
  • Spectrum:
    • 195° 1.5ft 14s

Wednesday

🌅6a-12p 😴 Swell 0/10Wind 320° 5kt

There may be a modest uptick to knee-high surf with occasional thigh-high sets as the south energy inches up, but its angle and period remain unfavorable for this coast. Light WNW wind leaves a little texture. The near-zero morning low tide raises shallow-water and shorebreak concerns for the small surf.

  • Typical waves:knee
  • Sets:thigh, sparse
  • Surface:textured
  • Wind:320° 5kt
  • Tide:▼0.0ft 9:26a
  • Spectrum:
    • 190° 1.9ft 14s
    • 327° 0.8ft 5s
12-8p🌙 😴 Swell 1/10Wind 150° 6kt

An occasional waist-high pulse is possible as a small 20-second west component shows up, though most surf should remain knee to thigh high and quite inconsistent. Numerous afternoon showers may reduce visibility and make for unsettled conditions. The high tide around 4:50 PM will soften the small sets.

  • Typical waves:thigh
  • Sets:waist, sparse
  • Surface:textured
  • Wind:150° 6kt 🌧️
  • Tide:▲2.1ft 4:50p
  • Spectrum:
    • 270° 0.9ft 20s

Thursday

🌅6a-12p 😴 Swell 1/10Wind 115° 4kt

A new, very long-period southwest trickle may produce occasional waist-high sets, while most surf stays thigh-high or smaller. Light ESE wind is favorable, but mixed short-period energy keeps the surface from fully glassing off. The late-morning low tide can make the small surf especially shallow and uneven.

  • Typical waves:thigh
  • Sets:waist, sparse
  • Surface:textured
  • Wind:115° 4kt
  • Tide:▼0.1ft 10:03a
  • Spectrum:
    • 191° 2.1ft 13s
    • 218° 0.6ft 19s
    • 317° 1.0ft 6s
12-8p🌙 😴 Swell 1/10Wind 090° 7kt

The southwest pulse strengthens a little, bringing more frequent thigh-high surf and occasional waist-to-stomach-high sets at favored peaks. Easterly wind should groom the surface, especially before the late-day breeze firms up. Even so, the swell remains small and inconsistent, with the rising tide softening afternoon shape.

  • Typical waves:thigh
  • Sets:stomach, sparse
  • Surface:clean
  • Wind:090° 7kt
  • Tide:▲2.1ft 5:18p
  • Spectrum:
    • 193° 2.0ft 13s
    • 217° 0.9ft 17s

Hurricane Fausto passing north of the islands weakens and disrupts the usual trades through Wednesday, bringing cloud cover, showers, and a chance of heavier afternoon rain around Kahe and Nānākuli. Its large surf impact is focused on east-facing shores, while the West Side mainly sees small, heavily filtered south swell and brief short-period texture. Winds become light and variable around the cyclone's passage before turning more easterly late Wednesday.

Outlook: A modest long-period southwest pulse should continue building into Friday, but only a limited portion is expected to reach Kahe and Nānākuli. Drier easterly trades return and strengthen from Thursday onward, generally favoring cleaner West Side surfaces while also adding some locally generated texture later in the day.

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Legend (examples)
Rating
🙂
average+
Swell
Swell 3/10
chest-high typical
Wind
Wind 060° 15kts
060° 15kts (barbs)