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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 1 am Thursday 23 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
25.6° 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 6AM is: 0.8m 13s primary swell from a West direction (forecast issued at 01:00am April 23). An open ocean swell of 0.8m 12s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Apr) | 2.5ft (0.7m) | 13s |
| Afternoon (23 Apr) | 2.5ft (0.7m) | 13s |
| Evening (23 Apr) | 2ft (0.6m) | 16s |
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 Thu afternoon, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WNW 13 | W 13 | W 13 | W 13 | W 13 | WNW 16 | WNW 16 | WNW 16 | WNW 15 | WNW 15 | WNW 15 | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | SW 15 | |
239 | 222 | 222 | 168 | 168 | 203 | 203 | 333 | 169 | 222 | 222 | 213 | 232 | 232 | 178 | 168 | 152 | 113 | 111 | 106 | 102 | 70 | 66 | 0 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | glassy | cross-on | on | on | glassy | glassy | cross-off | glassy | cross-on | glassy | cross-on | cross-on | glassy | glassy | cross | glassy | glassy | cross-off | cross-on | cross-on | cross-on | glassy | glassy | |
High Tide | 9:45AM0.27m | 10:02PM0.71m | 11:37AM0.33m | 11:09PM0.67m | 12:40PM0.42m | |||||||||||||||||||
Low Tide | 5:03AM0.18m | 1:56PM0.20m | 5:56AM0.15m | 3:52PM0.25m | 6:33AM0.13m | 5:35PM0.26m | ||||||||||||||||||
 |  |  |  | | |  | | | | | | | | | | | | | | | | |  | |
 | — | 6:00 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — |
— | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | |
Temp °C | 24 | 24 | 24 | 25 | 26 | 26 | 25 | 24 | 24 | 24 | 25 | 26 | 25 | 25 | 24 | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 |
26 | 27 | 26 | 27 | 29 | 30 | 29 | 27 | 28 | 27 | 27 | 28 | 27 | 27 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 27 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | WNW 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | WNW 16 | WNW 15 | WNW 15 | WNW 15 | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | NNE 9 | NNE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 8 |
 kJ | 239 | 222 | 222 | 168 | 168 | 168 | 125 | 333 | 169 | 222 | 222 | 213 | 232 | 232 | 178 | 168 | 152 | 113 | 88 | 84 | 80 | 99 | 105 | 58 |
Swell 2 Height (m) Direction Period (s) | NNE 12 | NNE 12 | NNE 11 | NNE 11 | NNE 11 | NNE 11 | NNE 11 | NNE 5 | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 9 | NNE 5 | NNE 5 | NNE 4 | NNE 4 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | SW 16 | NNE 5 |
| kJ | 158 | 156 | 143 | 138 | 105 | 91 | 88 | 19 | 58 | 78 | 86 | 55 | 37 | 35 | 25 | 12 | 11 | 10 | 111 | 106 | 102 | 70 | 121 | 21 |
Swell 3 Height (m) Direction Period (s) | NNE 4 | NNE 4 | WNW 18 | WNW 18 | W 16 | WNW 16 | WNW 16 | NNE 10 | W 13 | W 12 | W 12 | SW 13 | SW 13 | SW 13 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 11 | SW 15 |
| kJ | 12 | 8 | 104 | 102 | 137 | 203 | 203 | 59 | 119 | 77 | 76 | 28 | 28 | 28 | 32 | 32 | 31 | 45 | 118 | 118 | 121 | 121 | 66 | 116 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNE 4 | NNE 4 | NNE 4 | — | SSE 10 | — | — | NNE 4 | NNE 5 | NNE 5 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 3 | 6 | 18 | — | 20 | — | — | 8 | 17 | 26 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 4 | 0 | 14 | 32 | 36 | 0 | 0 | 0 | 0 | 21 | 0 | 32 | 11 | 0 | 0 | 11 | 0 | 0 | 0 | 36 | 36 | 34 | 1 | 1 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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