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Hakalau surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 am Monday 18 May 2026 HSTForecast update in hr min s Forecast update imminent
Hakalau surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Hakalau sea temperature is
25.7° C
(Which is slightly warmer than usual)How big are the waves at Hakalau today?
The current surf forecast for Hakalau at 3PM is: 1.8m 8s primary swell from a East direction and 0.2m 15s secondary swell from a North-northwest direction (forecast issued at 07:00am May 18). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 6ft (1.9m) | 8s |
| Afternoon (18 May) | 6ft (1.8m) | 8s |
| Evening (18 May) | 4.5ft (1.3m) | 8s |
Table - waves today at Hakalau. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 43mm), heaviest during Wed morning. Warm (max 25°C on Mon afternoon, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 8 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | |
489 | 477 | 428 | 428 | 239 | 239 | 264 | 270 | 347 | 339 | 339 | 339 | 386 | 198 | 236 | 493 | 267 | 386 | 443 | 676 | 676 | 692 | 676 | 660 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | |
High Tide | 3:08AM0.54m | 4:54PM1.09m | 3:52AM0.50m | 5:46PM1.04m | 4:45AM0.46m | 6:41PM0.98m | ||||||||||||||||||
Low Tide | 9:21AM-0.03m | 11:52PM0.36m | 10:04AM0.02m | 00:59AM0.36m | 10:51AM0.10m | |||||||||||||||||||
 |  |  | | |  | | | | |  | | | | | | | | | | | | | | |
 | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | 5:41 |
 | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:51 | — | — | 6:51 |
1 | 3 | 3 | 2 | 3 | 2 | 1 | 1 | 1 | 1 | — | 1 | 2 | 2 | 2 | 2 | 3 | 4 | 3 | 1 | 1 | 1 | 1 | 2 | |
Temp °C | 24 | 24 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 |
26 | 25 | 25 | 26 | 27 | 26 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 24 | 24 | 24 | 25 | 24 | 25 | 24 | 23 | 23 | |
Swell 1 Height (m) Direction Period (s) | NNW 10 | E 8 | E 8 | E 8 | ESE 8 | ESE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ESE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | NNW 11 |
 kJ | 19 | 477 | 428 | 428 | 239 | 239 | 264 | 270 | 347 | 339 | 339 | 339 | 386 | 198 | 236 | 213 | 267 | 386 | 186 | 676 | 676 | 692 | 676 | 46 |
Swell 2 Height (m) Direction Period (s) | NNW 16 | NNW 10 | NNW 9 | NNW 15 | ENE 8 | ENE 8 | ESE 9 | ESE 10 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | NNW 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | SSE 13 |
| kJ | 25 | 18 | 17 | 21 | 154 | 154 | 108 | 120 | 23 | 37 | 34 | 19 | 32 | 185 | 190 | 190 | 202 | 234 | 54 | 56 | 55 | 47 | 46 | 35 |
Swell 3 Height (m) Direction Period (s) | SE 10 | NNW 15 | NNW 15 | NNW 9 | NNW 14 | NNW 13 | NNW 13 | NNW 12 | NW 9 | NW 8 | SE 15 | NNW 13 | SE 15 | NNW 12 | NNW 12 | NNW 13 | NNW 11 | NNW 11 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | S 17 |
| kJ | 4 | 23 | 21 | 8 | 18 | 18 | 17 | 15 | 3 | 3 | 9 | 18 | 9 | 54 | 54 | 65 | 47 | 47 | 19 | 19 | 19 | 19 | 37 | 6 |
Wind waves Height (m) Direction Period (s) | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 8 | — | — | ENE 8 | — | — | — | — | ENE 8 |
| kJ | 489 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 493 | — | — | 443 | — | — | — | — | 660 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 18 | 18 | 158 | 74 | 96 | 158 | 17 | 16 | 14 | 95 | 158 | 160 | 95 | 95 | 20 | 20 | 20 | 20 | 160 | 160 | 95 | 95 | 20 | 95 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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