PierMonkey

Hanalei Bay Surf Season

Hawaii, USA · part of the Hanalei Bay spot guide

Prime season: November – March
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QuietOccasionalConsistentPrime

Hanalei is a North Pacific winter wave, prime November through March and peaking in January; summer is mostly flat because the bay faces away from south swell. The engine is the Aleutian and Gulf-of-Alaska storm track, whose long-period north-to-northwest groundswell Kauai receives first among the main islands.

Where the swell comes from

Aleutian and Gulf-of-Alaska storms send the long-period north-to-northwest groundswell; Kauai is the northwesternmost main island and sits first in the firing line.

Historic swells at Hanalei Bay

Dec 1969

The Swell of the Century

A roughly 30-foot swell hammered Kauai’s north shore with evacuations — the pre-instrument benchmark giant.

Nov 2025

An XL long-period NW swell

A high-surf warning with north-facing surf around 35 to 40 feet, naming Hanalei and Hāʻena in the advisories.

Researched from published surf journalism, oceanographic references and chart data; figures are approximate and confidence-checked. Updated 2026-07-06.