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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 02 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
25.7° C
(Which is slightly warmer than usual)How big are the waves at Mahai'ula Bay today?
The current surf forecast for Mahai'ula Bay at 1PM is: 0.6m 15s primary swell from a Northwest direction and 0.2m 10s secondary swell from a West-northwest direction (forecast issued at 07:00am May 02). An open ocean swell of 0.8m 7s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 May) | 1.5ft (0.4m) | 16s |
| Afternoon (02 May) | 2ft (0.6m) | 15s |
| Evening (02 May) | 2ft (0.6m) | 14s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 26°C on Sun morning, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 2 | Sunday 3 | Monday 4 | Tue 5 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
NW 16 | NW 16 | NW 15 | NW 15 | NW 15 | NW 14 | NW 14 | SSW 16 | SSW 16 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 13 | NW 13 | |
129 | 88 | 139 | 136 | 134 | 128 | 114 | 0 | 0 | 108 | 58 | 52 | 51 | 51 | 51 | 47 | 46 | 43 | 42 | 30 | 30 | 43 | 84 | 103 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | glassy | cross-on | on | cross-on | glassy | cross | glassy | glassy | glassy | on | on | cross | glassy | cross | glassy | glassy | glassy | on | glassy | cross | glassy | cross | glassy | |
High Tide | 3:46AM0.40m | 4:36PM0.81m | 4:17AM0.36m | 5:11PM0.79m | 4:47AM0.33m | 5:49PM0.76m | ||||||||||||||||||
Low Tide | 9:24AM0.06m | 11:36PM0.18m | 9:50AM0.07m | 00:21AM0.19m | 10:18AM0.08m | 1:13AM0.21m | ||||||||||||||||||
 |  |  | | | | | | | | | | |  |  | | | | | | | | | | |
 | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | 5:52 |
 | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:47 | — | — | 6:47 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 23 | 24 | 26 | 25 | 26 | 25 | 25 | 24 | 23 | 24 | 25 | 26 | 26 | 26 | 25 | 24 |
25 | 27 | 26 | 27 | 28 | 28 | 26 | 28 | 26 | 27 | 28 | 27 | 28 | 28 | 26 | 26 | 26 | 27 | 27 | 29 | 28 | 29 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | S 15 | SSW 16 | NE 7 | NNE 7 | NNE 8 | NNE 7 | SSW 14 | NNE 5 | NNE 6 | NNE 5 | NNE 5 | NNE 5 | NNE 6 | S 13 | SSW 13 | NNE 5 | NNE 5 | NNE 5 | NNE 5 |
 kJ | 80 | 78 | 72 | 68 | 61 | 209 | 337 | 54 | 48 | 37 | 37 | 215 | 34 | 47 | 31 | 23 | 26 | 21 | 89 | 99 | 18 | 17 | 16 | 18 |
Swell 2 Height (m) Direction Period (s) | S 14 | S 15 | S 14 | NW 15 | NW 15 | NNE 7 | NNE 7 | SSW 16 | S 13 | S 13 | S 13 | NNE 5 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 14 | S 13 | NNE 6 | NNE 6 | S 13 | S 13 | NW 13 | NW 13 |
| kJ | 206 | 155 | 153 | 136 | 134 | 44 | 46 | 201 | 125 | 130 | 125 | 19 | 215 | 215 | 215 | 160 | 140 | 128 | 21 | 20 | 87 | 86 | 84 | 103 |
Swell 3 Height (m) Direction Period (s) | NW 16 | NW 16 | NW 15 | S 14 | S 14 | NW 14 | NW 14 | S 13 | SSW 16 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | S 13 | SSW 13 |
| kJ | 129 | 88 | 139 | 153 | 107 | 128 | 114 | 125 | 146 | 108 | 58 | 52 | 51 | 51 | 51 | 47 | 46 | 43 | 42 | 30 | 30 | 43 | 85 | 53 |
Wind waves Height (m) Direction Period (s) | — | — | WNW 10 | — | — | — | — | — | — | — | NNE 7 | — | — | — | — | — | — | — | — | — | — | — | SSW 2 | — |
| kJ | — | — | 10 | — | — | — | — | — | — | — | 17 | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 100 | 105 | 34 | 0 | 24 | 11 | 11 | 0 | 100 | 100 | 100 | 1 | 19 | 1 | 1 | 18 | 99 | 38 | 100 | 18 | 38 | 0 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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