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Mahai'ula Bay Surf Forecast
/ HAW – Big Island (60 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Mahai'ula Bay surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 am Saturday 25 Apr 2026 HSTForecast update in hr min s Forecast update imminent
Mahai'ula Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mahai'ula Bay sea temperature is
25.9° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Mahai'ula Bay today?
The current surf forecast for Mahai'ula Bay at 1PM is: 0.6m 12s primary swell from a West-northwest direction (forecast issued at 07:00am April 25). An open ocean swell of 0.9m 8s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | 2ft (0.6m) | 12s |
| Afternoon (25 Apr) | 2ft (0.6m) | 11s |
| Evening (25 Apr) | 1.5ft (0.5m) | 11s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Warm (max 26°C on Sun afternoon, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tue 28 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | SW 13 | SW 13 | SW 13 | |
113 | 111 | 106 | 102 | 70 | 66 | 65 | 38 | 37 | 37 | 33 | 33 | 37 | 37 | 34 | 33 | 32 | 32 | 19 | 19 | 19 | 0 | 0 | 0 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | on | cross-on | cross | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | on | cross-on | cross | glassy | cross-on | cross-on | cross-on | on | glassy | glassy | |
High Tide | 12:40PM0.42m | 00:05AM0.64m | 1:23PM0.52m | 00:52AM0.61m | 1:59PM0.61m | 1:32AM0.57m | ||||||||||||||||||
Low Tide | 6:33AM0.13m | 5:35PM0.26m | 7:02AM0.11m | 6:52PM0.25m | 7:28AM0.09m | 7:53PM0.23m | ||||||||||||||||||
 |  | | | |  | |  | |  | | | | | | | | | | | | | | | |
 | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | 5:56 |
 | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | 6:45 |
— | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 23 | 24 | 25 | 26 | 25 | 25 | 24 | 24 | 23 | 25 | 26 | 25 | 25 | 25 | 24 | 24 |
25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 24 | 25 | 26 | 27 | 25 | 27 | 26 | 26 | 25 | 28 | 28 | 26 | 27 | 27 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | NNE 9 | NNE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 |
 kJ | 111 | 108 | 113 | 105 | 103 | 100 | 80 | 71 | 73 | 56 | 56 | 69 | 74 | 72 | 74 | 74 | 66 | 50 | 37 | 47 | 44 | 31 | 32 | 31 |
Swell 2 Height (m) Direction Period (s) | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | SW 16 | SW 15 | SSW 15 | SSW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 |
| kJ | 113 | 111 | 106 | 102 | 70 | 121 | 116 | 146 | 142 | 171 | 169 | 169 | 167 | 136 | 97 | 93 | 89 | 88 | 85 | 85 | 84 | 84 | 84 | 83 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NNE 9 | NNE 9 | NNE 8 |
| kJ | 97 | 118 | 118 | 121 | 121 | 66 | 65 | 38 | 37 | 37 | 33 | 33 | 37 | 37 | 34 | 33 | 32 | 32 | 19 | 19 | 19 | 15 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 8 | — | — | W 9 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 42 | — | — | 6 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 34 | 34 | 18 | 4 | 18 | 19 | 19 | 19 | 34 | 34 | 34 | 24 | 100 | 19 | 19 | 1 | 100 | 103 | 100 | 100 | 1 | 1 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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