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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 Friday 24 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 10AM is: 0.7m 14s primary swell from a West-northwest direction (forecast issued at 07:00am April 24). An open ocean swell of 0.5m 10s is not directed at the surf break, a second open ocean swell of 0.7m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Apr) | 2.5ft (0.7m) | 14s |
| Afternoon (24 Apr) | 2.5ft (0.8m) | 13s |
| Evening (24 Apr) | 2.5ft (0.7m) | 13s |
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 5mm), mostly falling on Sat night. Warm (max 26°C on Fri morning, min 23°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Mon 27 | |||||||||||||||||||||
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 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 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | NW 12 | NW 12 | NW 12 | NW 11 | |
222 | 222 | 213 | 232 | 232 | 178 | 168 | 152 | 113 | 111 | 106 | 102 | 70 | 66 | 65 | 38 | 37 | 37 | 33 | 33 | 37 | 37 | 34 | 33 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross-on | cross-on | cross-on | glassy | glassy | glassy | cross | glassy | on | cross-on | glassy | cross-off | cross | glassy | cross-on | cross-on | on | on | cross | cross-off | cross | cross-on | |
High Tide | 11:37AM0.33m | 11:09PM0.67m | 12:40PM0.42m | 00:05AM0.64m | 1:23PM0.52m | 00:52AM0.61m | ||||||||||||||||||
Low Tide | 5:56AM0.15m | 3:52PM0.25m | 6:33AM0.13m | 5:35PM0.26m | 7:02AM0.11m | 6:52PM0.25m | ||||||||||||||||||
 |  | | | |  | | | | | | | | | |  | |  | | | | | |  | |
 | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | 5:56 |
 | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | 6:45 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | 1 | |
Temp °C | 24 | 25 | 26 | 26 | 26 | 24 | 24 | 24 | 23 | 24 | 25 | 25 | 25 | 25 | 24 | 23 | 23 | 24 | 25 | 25 | 25 | 25 | 24 | 24 |
27 | 25 | 26 | 25 | 27 | 27 | 27 | 27 | 24 | 26 | 26 | 27 | 27 | 27 | 25 | 26 | 25 | 26 | 26 | 27 | 25 | 26 | 26 | 26 | |
Swell 1 Height (m) Direction Period (s) | WNW 15 | WNW 15 | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | NNE 5 | NNE 5 | 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 7 | NNE 8 |
 kJ | 222 | 222 | 213 | 232 | 232 | 178 | 168 | 25 | 20 | 144 | 111 | 105 | 103 | 100 | 89 | 73 | 73 | 56 | 55 | 54 | 52 | 72 | 70 | 50 |
Swell 2 Height (m) Direction Period (s) | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 9 | NNE 9 | NNE 9 | WNW 12 | 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 |
| kJ | 57 | 56 | 55 | 37 | 35 | 32 | 32 | 152 | 113 | 111 | 106 | 102 | 70 | 121 | 116 | 146 | 142 | 171 | 169 | 169 | 167 | 136 | 97 | 93 |
Swell 3 Height (m) Direction Period (s) | W 12 | W 12 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | NNE 9 | NNE 9 | 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 |
| kJ | 77 | 76 | 28 | 28 | 28 | 45 | 44 | 31 | 44 | 118 | 118 | 121 | 121 | 66 | 65 | 38 | 37 | 37 | 33 | 33 | 37 | 37 | 34 | 33 |
Wind waves Height (m) Direction Period (s) | NNE 4 | NNE 4 | NNE 5 | NNE 4 | NNE 4 | NNE 5 | NNE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 18 | 24 | 19 | 15 | 19 | 27 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 4 | 11 | 32 | 100 | 11 | 0 | 0 | 0 | 11 | 0 | 34 | 34 | 0 | 1 | 4 | 1 | 19 | 19 | 36 | 34 | 24 | 1 | 18 | 19 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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