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Waimanu Bay Surf Forecast
/ HAW – Big Island (60 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Waimanu Bay surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 1 pm Tuesday 12 May 2026 HSTForecast update in hr min s Forecast update imminent
Waimanu Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waimanu Bay sea temperature is
25.7° C
(Which is slightly warmer than usual)How big are the waves at Waimanu Bay today?
The current surf forecast for Waimanu Bay at 4PM is: 1.5m 7s primary swell from a East direction and 0.8m 11s secondary swell from a North-northwest direction, 0.6m 7s secondary swell from a North direction (forecast issued at 01:00pm May 12). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 4.5ft (1.4m) | 7s |
| Afternoon (12 May) | 5ft (1.6m) | 7s |
| Evening (12 May) | 4.5ft (1.4m) | 7s |
Table - waves today at Waimanu Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Thu afternoon. Warm (max 25°C on Tue afternoon, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | 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 | |
187 | 229 | 217 | 200 | 230 | 226 | 220 | 233 | 303 | 348 | 367 | 337 | 346 | 346 | 337 | 377 | 337 | 387 | 401 | 374 | 412 | 368 | 374 | 412 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | |
High Tide | 12:35PM0.69m | 11:40PM0.68m | 1:17PM0.81m | 00:22AM0.64m | 1:58PM0.92m | 1:04AM0.60m | ||||||||||||||||||
Low Tide | 6:12PM0.39m | 6:19AM0.10m | 7:19PM0.37m | 6:50AM0.05m | 8:18PM0.34m | 7:24AM-0.00m | ||||||||||||||||||
 | |  |  | | |  | | | | | | | | | | |  | | | | | | | |
 | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — |
 | — | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | 6:51 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | |
Temp °C | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 24 | 25 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 25 | 25 | 25 | 24 | 24 | 23 | 23 | 24 |
23 | 23 | 22 | 21 | 21 | 21 | 21 | 21 | 24 | 23 | 23 | 22 | 21 | 22 | 22 | 23 | 25 | 25 | 25 | 24 | 24 | 22 | 22 | 23 | |
Swell 1 Height (m) Direction Period (s) | NNW 12 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NW 9 | NNW 9 | N 9 | N 9 | N 9 | NW 17 | NW 16 | NW 16 | NW 15 | NNW 15 | NW 15 | NNW 14 | NNW 14 | NW 14 |
 kJ | 113 | 143 | 133 | 123 | 116 | 88 | 86 | 85 | 55 | 34 | 22 | 49 | 26 | 41 | 39 | 135 | 132 | 203 | 232 | 283 | 314 | 362 | 342 | 264 |
Swell 2 Height (m) Direction Period (s) | N 7 | N 7 | N 7 | N 7 | N 6 | N 13 | N 12 | N 12 | N 12 | N 10 | N 10 | N 12 | NW 9 | NNW 18 | NW 18 | N 9 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 |
| kJ | 35 | 24 | 31 | 21 | 21 | 13 | 12 | 11 | 12 | 18 | 31 | 3 | 21 | 31 | 78 | 24 | 23 | 22 | 22 | 22 | 22 | 12 | 12 | 12 |
Swell 3 Height (m) Direction Period (s) | NW 11 | — | SE 12 | N 13 | N 13 | SE 11 | SE 11 | SE 11 | SE 11 | — | N 20 | NW 19 | NW 18 | NW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 11 | NNW 11 | — | — | — | — |
| kJ | 5 | — | 5 | 14 | 14 | 5 | 5 | 5 | 5 | — | 7 | 14 | 13 | 13 | 8 | 8 | 7 | 7 | 12 | 12 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | 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 |
| kJ | 187 | 229 | 217 | 200 | 230 | 226 | 220 | 233 | 303 | 348 | 367 | 337 | 346 | 346 | 337 | 377 | 337 | 387 | 401 | 374 | 412 | 368 | 374 | 412 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 66 | 58 | 98 | 58 | 98 | 66 | 66 | 66 | 66 | 70 | 74 | 101 | 58 | 58 | 69 | 68 | 68 | 68 | 74 | 77 | 72 | 58 | 58 | 74 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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