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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 Friday 15 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
25.6° C
(Which is slightly warmer than usual)How big are the waves at Waimanu Bay today?
The current surf forecast for Waimanu Bay at 6PM is: 1.9m 8s primary swell from a East direction and 0.7m 13s secondary swell from a Northwest direction, 0.2m 8s secondary swell from a North direction (forecast issued at 01:00pm May 15). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 May) | 6ft (1.9m) | 8s |
| Afternoon (15 May) | 6.5ft (2.0m) | 8s |
| Evening (15 May) | 6ft (1.8m) | 8s |
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 6mm), mostly falling on Fri afternoon. Warm (max 26°C on Sat morning, min 24°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 15 | Saturday 16 | Sunday 17 | Mon 18 | |||||||||||||||||||||
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 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | |
458 | 470 | 464 | 422 | 377 | 383 | 428 | 439 | 587 | 669 | 686 | 476 | 488 | 386 | 393 | 349 | 318 | 326 | 293 | 324 | 367 | 403 | 393 | 393 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | |
High Tide | 2:40PM1.00m | 1:46AM0.55m | 3:24PM1.05m | 2:27AM0.51m | 4:09PM1.07m | 3:09AM0.48m | ||||||||||||||||||
Low Tide | 9:14PM0.32m | 8:00AM-0.03m | 10:08PM0.32m | 8:39AM-0.04m | 11:03PM0.32m | |||||||||||||||||||
 |  | |  |  | |  |  | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — |
 | — | — | 6:51 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | 6:52 |
— | 1 | 1 | 1 | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 26 | 25 | 25 | 24 | 24 | 24 | 25 |
25 | 25 | 25 | 24 | 24 | 25 | 25 | 26 | 27 | 27 | 27 | 25 | 25 | 25 | 25 | 25 | 26 | 28 | 26 | 26 | 25 | 25 | 25 | 25 | |
Swell 1 Height (m) Direction Period (s) | NW 13 | NW 13 | NNW 13 | NW 12 | NW 12 | NNW 12 | NNW 12 | NW 12 | NW 11 | NNW 11 | E 8 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | ENE 8 | ENE 8 | NNW 10 | NNW 10 | NW 10 | NNW 10 | NNW 10 |
 kJ | 257 | 249 | 212 | 154 | 149 | 96 | 94 | 66 | 60 | 48 | 476 | 47 | 47 | 47 | 47 | 44 | 44 | 326 | 293 | 39 | 38 | 25 | 19 | 18 |
Swell 2 Height (m) Direction Period (s) | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | NNW 15 | NNW 15 | NNW 14 | NNW 13 | NNW 11 | NW 13 | — | — | N 21 | NW 20 | NW 20 | NNW 10 | NNW 10 | NNW 18 | NNW 17 | NNW 16 | NNW 16 | NNW 15 |
| kJ | 12 | 5 | 5 | 5 | 1 | 4 | 21 | 21 | 19 | 18 | 47 | 7 | — | — | 9 | 16 | 15 | 43 | 42 | 31 | 27 | 51 | 25 | 22 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | N 16 | — | N 8 | N 8 | N 8 | — | NNW 13 | — | — | — | NW 21 | NW 20 | NNW 10 | NNW 19 | NNW 18 | W 21 | — | S 10 | S 10 | — |
| kJ | — | — | — | — | 5 | — | 5 | 1 | 1 | — | 18 | — | — | — | 17 | 16 | 43 | 35 | 32 | 9 | — | 2 | 2 | — |
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 | E 8 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | — | E 3 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 458 | 470 | 464 | 422 | 377 | 383 | 428 | 439 | 587 | 669 | 686 | 476 | 488 | 386 | 393 | 349 | 318 | — | 6 | 324 | 367 | 403 | 393 | 393 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 77 | 74 | 74 | 58 | 58 | 58 | 69 | 58 | 97 | 97 | 82 | 71 | 69 | 58 | 58 | 66 | 77 | 77 | 24 | 24 | 72 | 66 | 69 | 66 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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