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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 pm Saturday 23 May 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
26.3° C
(Which is 1.0°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 12AM is: 0.4m 3s primary swell from a Southwest direction (forecast issued at 07:00pm May 23). An open ocean swell of 0.9m 6s is not directed at the surf break, a second open ocean swell of 0.7m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 May) | - | - |
| Afternoon (24 May) | - | - |
| Evening (24 May) | 1ft (0.3m) | 12s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 26°C on Mon afternoon, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
NNE 8 | S 15 | SW 3 | W 3 | S 14 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NW 12 | S 14 | S 13 | NW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | NW 11 | S 13 | S 13 | S 13 | SSW 2 | WSW 3 | |
0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 0 | 22 | 13 | 12 | 12 | 12 | 12 | 5 | 0 | 0 | 0 | 1 | 1 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | glassy | cross | cross-off | cross-off | cross-off | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | on | cross-on | |
High Tide | 10:10PM0.62m | 12:10PM0.51m | 11:04PM0.55m | 12:57PM0.60m | 11:56PM0.49m | 1:34PM0.67m | ||||||||||||||||||
Low Tide | 5:24AM0.11m | 5:26PM0.33m | 5:57AM0.10m | 6:53PM0.31m | 6:26AM0.09m | |||||||||||||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — |
 | 6:54 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | 6:57 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 24 | 24 | 24 | 23 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 26 | 25 | 24 | 24 | 23 | 24 | 25 | 25 |
26 | 25 | 24 | 24 | 23 | 25 | 27 | 27 | 27 | 25 | 25 | 25 | 25 | 26 | 27 | 27 | 28 | 28 | 26 | 26 | 25 | 26 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | S 15 | NNE 8 | NNE 6 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 8 | NNE 6 | NNE 6 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 |
 kJ | 212 | 243 | 47 | 161 | 132 | 154 | 157 | 154 | 154 | 177 | 53 | 53 | 140 | 120 | 108 | 140 | 130 | 116 | 93 | 78 | 76 | 72 | 96 | 86 |
Swell 2 Height (m) Direction Period (s) | SSE 4 | S 15 | NE 9 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | NE 8 | NE 8 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 16 | S 16 |
| kJ | 2 | 212 | 75 | 198 | 134 | 132 | 132 | 132 | 136 | 140 | 74 | 72 | 138 | 129 | 123 | 123 | 121 | 121 | 121 | 119 | 82 | 78 | 174 | 172 |
Swell 3 Height (m) Direction Period (s) | S 18 | SSE 4 | S 15 | SSE 4 | S 16 | S 16 | S 16 | S 16 | S 16 | NW 12 | S 14 | S 13 | NW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | NW 11 | S 17 | S 16 | S 16 | S 4 | S 3 |
| kJ | 25 | 2 | 209 | 3 | 47 | 46 | 46 | 46 | 46 | 23 | 140 | 82 | 22 | 13 | 12 | 12 | 12 | 12 | 5 | 24 | 46 | 81 | 1 | 2 |
Wind waves Height (m) Direction Period (s) | NNE 8 | SSE 11 | SW 3 | W 3 | — | — | — | — | — | — | — | — | — | — | — | WSW 2 | — | SSE 6 | — | — | — | — | SSW 2 | WSW 3 |
| kJ | 280 | 47 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 8 | — | — | — | — | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 11 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 103 | 103 |
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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