Kahalu U Bay Surf Report & Ideal Conditions
See your personalized forecast for Kahalu U Bay
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Download LazySurfer →Best conditions for Kahalu U Bay
Kahalu U Bay is most often good on a 2–4 ft medium-period (8–16s) swell from the NW, with glassy / no wind from the SW, on a mid outgoing tide — the conditions LazySurfer surfers have logged and rated highest here.
| Ideal wave height | 2–4 ft |
| Ideal period | medium-period (8–16s) |
| Best swell direction | NW |
| Best wind | glassy / no wind from the SW |
| Best tide | mid & outgoing |
These best-conditions estimates come from real sessions LazySurfer users rated highly at this break — not an editorial guess (moderate-confidence read). In the app, LazySurfer's custom deep-learning model predicts your own 1–5★ rating at about 90% exact-match accuracy (97.6% within one star). How LazySurfer works →
Current conditions
Latest reading from the nearest NOAA buoys (UTC 2026-06-07 00:30 UTC). LazySurfer reads this same public NDBC data directly — no proprietary smoothing. New to buoy data? See how to read a NOAA buoy. A multi-day forecast for this spot is coming soon; for now these readings update continuously.
| Wave height | 3.0 ft |
| Dominant period | 13s |
| Swell direction | S (174°) |
| Wave buoy | NDBC station 51212 (185 mi away) |
| Wind | 12 kt from the WSW — NDBC KWHH1 (33 mi away) |
Tide
Predicted tide for the next two days from NOAA station 1617433 (Kawaihae), the nearest tide station (33 mi away). Times local.
- 2026-06-06 03:16 — Low 0.184 ft
- 2026-06-06 08:51 — High 0.731 ft
- 2026-06-06 13:01 — Low 0.506 ft
- 2026-06-06 20:22 — High 1.914 ft
- 2026-06-07 03:53 — Low 0.136 ft
- 2026-06-07 10:18 — High 0.955 ft
Frequently asked
Is Kahalu U Bay good for surfing right now?
As of the latest buoy reading (2026-06-07 00:30 UTC), Kahalu U Bay is fair: the live 2–4 ft medium-period swell from the S is off its ideal NW direction and is in its ideal size range, and the wind is strong from the W.
Where does LazySurfer's surf data for Kahalu U Bay come from?
LazySurfer reads public data directly from NOAA's National Data Buoy Center and the National Weather Service — the nearest NDBC wave buoy (station 51212) and the nearest NOAA tide station (Kawaihae). The same raw readings NOAA publishes, with no proprietary smoothing.
What are the best surf conditions for Kahalu U Bay?
Kahalu U Bay is most often good on a 2–4 ft medium-period (8–16s) swell from the NW, with glassy / no wind from the SW, on a mid outgoing tide — the conditions LazySurfer surfers have logged and rated highest here.
Does LazySurfer predict whether Kahalu U Bay is good for me?
Yes. LazySurfer trains a custom deep-learning model — a PyTorch neural network with per-user embeddings, retrained weekly on real logged surf sessions from the LazySurfer community — to predict the 1-to-5 star rating you personally would give, rather than a single average rating for everyone.
Nearby spots
- Banyans — 2 mi
- Lahaina Harbor Breakwall — 100 mi
- Diamond Head — 166 mi
- Waikiki Kapiolani Park — 167 mi
- Waikiki Beach — 168 mi
Learn more: How LazySurfer works · Groundswell vs windswell · Surf period explained · Compare surf apps