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Waipio Bay Surf Forecast
/ HAW – Big Island (60 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Waipio Bay surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 pm Monday 18 May 2026 HSTForecast update in hr min s Forecast update imminent
Waipio Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waipio Bay sea temperature is
25.9° C
(Which is slightly warmer than usual)How big are the waves at Waipio Bay today?
The current surf forecast for Waipio Bay at 1AM is: 1.5m 8s primary swell from a East direction and 0.2m 12s secondary swell from a North-northwest direction, 0.2m 9s secondary swell from a North-northwest direction (forecast issued at 07:00pm May 18). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 5ft (1.6m) | 8s |
| Afternoon (19 May) | 6ft (1.9m) | 8s |
| Evening (19 May) | 6ft (1.8m) | 8s |
Table - waves today at Waipio Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Tue afternoon. Warm (max 26°C on Tue morning, min 23°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | |
350 | 341 | 343 | 302 | 343 | 334 | 341 | 464 | 464 | 448 | 412 | 412 | 459 | 588 | 616 | 708 | 724 | 724 | 645 | 647 | 676 | 676 | 711 | 711 | |
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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 3:53AM0.45m | 5:46PM1.01m | 4:45AM0.42m | 6:38PM0.95m | 5:56AM0.39m | |||||||||||||||||||
Low Tide | 00:02AM0.33m | 10:02AM0.01m | 1:05AM0.33m | 10:46AM0.08m | 2:13AM0.32m | 11:36AM0.17m | ||||||||||||||||||
 |  |  | | |  | |  | | | | | | |  | | | | | | | | | | |
 | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — |
 | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | 6:52 |
1 | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 25 | 24 | 24 | 24 | 25 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 23 | 24 | 24 | 24 |
26 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 22 | 21 | 22 | 21 | 21 | 22 | 21 | 21 | |
Swell 1 Height (m) Direction Period (s) | NNW 13 | NNW 13 | NNW 12 | NNW 12 | NW 12 | NW 12 | NNW 13 | NW 11 | NNW 11 | NNW 12 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | NNW 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | NNW 10 | NNW 10 |
 kJ | 18 | 17 | 15 | 14 | 37 | 37 | 17 | 31 | 51 | 54 | 51 | 47 | 47 | 48 | 55 | 79 | 53 | 46 | 46 | 46 | 45 | 44 | 20 | 20 |
Swell 2 Height (m) Direction Period (s) | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NW 8 | N 8 | NNW 11 | N 8 | SE 15 | SE 15 | NW 11 | N 13 | NNW 13 | SE 14 | SE 14 | SE 14 | SE 14 | SE 14 | — | — | — | SSE 13 | SSE 13 | SSE 13 |
| kJ | 8 | 8 | 8 | 8 | 3 | 1 | 12 | 1 | 9 | 9 | 61 | 14 | 17 | 8 | 8 | 8 | 8 | 8 | — | — | — | 17 | 17 | 17 |
Swell 3 Height (m) Direction Period (s) | — | NNW 9 | NNW 9 | N 15 | S 16 | S 16 | N 8 | SE 15 | — | — | SE 16 | NNW 13 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 8 | 8 | 4 | 5 | 5 | 1 | 9 | — | — | 10 | 34 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 9 | ENE 9 |
| kJ | 350 | 341 | 343 | 302 | 343 | 334 | 341 | 464 | 464 | 448 | 412 | 412 | 459 | 588 | 616 | 708 | 724 | 724 | 645 | 647 | 676 | 676 | 711 | 711 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 81 | 64 | 64 | 68 | 68 | 68 | 105 | 123 | 68 | 68 | 71 | 68 | 70 | 68 | 107 | 113 | 61 | 61 | 61 | 61 | 70 | 61 | 61 | 113 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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