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Surf Forecasts:
Halape surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 1 pm Monday 18 May 2026 HSTForecast update in hr min s Forecast update imminent
Halape surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Halape sea temperature is
26.0° C
(Which is slightly warmer than usual)How big are the waves at Halape today?
The current surf forecast for Halape at 10PM is: 1.9m 8s primary swell from a East direction and 1.6m 8s secondary swell from a East direction, 0.5m 16s secondary swell from a South-southwest direction (forecast issued at 01:00pm May 18). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 6ft (1.8m) | 8s |
| Afternoon (18 May) | 5.5ft (1.7m) | 8s |
| Evening (18 May) | 6ft (1.9m) | 8s |
Table - waves today at Halape. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Warm (max 28°C on Tue afternoon, min 24°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 8 | |
439 | 392 | 302 | 505 | 501 | 439 | 428 | 339 | 339 | 339 | 347 | 500 | 450 | 400 | 409 | 307 | 307 | 315 | 330 | 621 | 632 | 617 | 603 | 708 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 5:17PM1.10m | 4:55AM0.47m | 6:08PM1.05m | 5:54AM0.44m | 7:03PM0.98m | 7:11AM0.43m | ||||||||||||||||||
Low Tide | 9:56AM-0.02m | 00:18AM0.23m | 10:41AM0.03m | 1:20AM0.24m | 11:31AM0.10m | 2:25AM0.25m | ||||||||||||||||||
 |  |  |  | | | | | | |  | | | | | | | | | | |  | | | |
 | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — |
 | — | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | 6:51 |
1 | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 26 | 27 | 26 | 25 | 25 | 24 | 24 | 26 | 27 | 28 | 26 | 25 | 25 | 24 | 24 | 25 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 24 |
24 | 25 | 24 | 24 | 25 | 24 | 24 | 25 | 25 | 26 | 24 | 23 | 24 | 23 | 24 | 23 | 23 | 23 | 21 | 22 | 22 | 22 | 22 | 21 | |
Swell 1 Height (m) Direction Period (s) | E 8 | SSW 16 | SE 10 | E 8 | E 8 | E 8 | E 8 | E 8 | SSW 14 | E 8 | SSW 14 | E 8 | E 8 | E 8 | SSW 14 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SSW 17 | S 16 | S 16 | S 16 | S 16 |
 kJ | 439 | 142 | 137 | 411 | 368 | 360 | 351 | 339 | 118 | 339 | 116 | 400 | 450 | 400 | 163 | 307 | 307 | 315 | 301 | 96 | 137 | 134 | 134 | 132 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SE 10 | SSW 14 | SSW 14 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 17 | SSW 14 | SSW 17 | SSW 14 | SSW 14 | SSW 14 | SSE 14 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 13 | SE 14 | SE 13 | SE 13 | SSE 13 |
| kJ | 174 | 50 | 74 | 73 | 142 | 172 | 167 | 116 | 59 | 118 | 100 | 165 | 163 | 165 | 38 | 115 | 66 | 63 | 101 | 59 | 46 | 45 | 44 | 66 |
Swell 3 Height (m) Direction Period (s) | SSW 19 | SSW 19 | SSW 19 | SSW 16 | SSE 10 | SSE 10 | SSE 9 | SSW 17 | SSE 9 | SSW 18 | SSE 9 | SSE 9 | SSE 15 | SSE 15 | SSE 9 | SSW 18 | SSW 18 | SSW 18 | SSW 13 | SE 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
| kJ | 37 | 37 | 74 | 51 | 9 | 9 | 17 | 57 | 8 | 102 | 8 | 8 | 23 | 22 | 8 | 103 | 103 | 61 | 57 | 49 | 34 | 34 | 34 | 33 |
Wind waves Height (m) Direction Period (s) | — | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | — | E 8 | — | E 8 | E 8 | NE 8 | NE 8 | E 8 | NE 8 | ENE 8 | ENE 9 | ENE 8 | E 9 | E 9 | E 9 | E 9 | E 8 |
| kJ | — | 392 | 302 | 505 | 501 | 439 | 428 | — | 339 | — | 347 | 500 | 273 | 216 | 409 | 201 | 241 | 286 | 330 | 621 | 632 | 617 | 603 | 708 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 193 | 102 | 99 | 55 | 55 | 55 | 55 | 72 | 193 | 196 | 193 | 81 | 58 | 58 | 58 | 58 | 58 | 204 | 58 | 58 | 81 | 58 | 72 | 84 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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