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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 pm Friday 01 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 4PM is: 0.4m 11s primary swell from a Northwest direction (forecast issued at 01:00pm May 01). An open ocean swell of 1.0m 8s is not directed at the surf break, a second open ocean swell of 0.5m 16s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 May) | 1.5ft (0.4m) | 11s |
| Afternoon (01 May) | 1.5ft (0.4m) | 12s |
| Evening (01 May) | - | - |
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 Sat afternoon, min 23°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 1 | Saturday 2 | Sunday 3 | Mon 4 | |||||||||||||||||||||
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 | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NNE 8 | NW 12 | NW 11 | NNE 7 | S 16 | NW 16 | 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 12 | NW 11 | |
0 | 35 | 31 | 0 | 0 | 69 | 129 | 88 | 139 | 136 | 134 | 128 | 114 | 0 | 0 | 108 | 58 | 52 | 51 | 51 | 51 | 50 | 47 | 43 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | on | glassy | glassy | glassy | cross | glassy | cross | cross-on | cross-on | on | cross | cross | glassy | cross-on | glassy | on | cross | cross-on | cross-on | cross | glassy | glassy | glassy | |
High Tide | 4:04PM0.81m | 3:46AM0.40m | 4:36PM0.81m | 4:17AM0.36m | 5:11PM0.79m | 4:47AM0.33m | ||||||||||||||||||
Low Tide | 8:59AM0.06m | 10:54PM0.18m | 9:24AM0.06m | 11:36PM0.18m | 9:50AM0.07m | 00:21AM0.19m | ||||||||||||||||||
 | | |  | | | |  | | | | | | | | | | | |  | | | | | |
 | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:52 | — |
 | — | — | 6:46 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | 6:47 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 24 | 25 | 25 | 26 | 24 | 24 | 24 | 23 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 25 |
27 | 27 | 27 | 27 | 26 | 26 | 24 | 25 | 26 | 26 | 28 | 26 | 26 | 28 | 25 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | |
Swell 1 Height (m) Direction Period (s) | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | NNE 8 | NNE 8 | NE 8 | NE 8 | NE 7 | NE 7 | SSW 15 | SSW 16 | NNE 7 | NNE 8 | S 13 | S 13 | SSW 14 | NE 6 | SSW 14 | SSW 14 | NNE 6 | NNE 6 | NNE 6 |
 kJ | 117 | 120 | 98 | 114 | 81 | 72 | 69 | 64 | 60 | 56 | 53 | 222 | 337 | 48 | 37 | 130 | 125 | 215 | 39 | 215 | 215 | 31 | 29 | 32 |
Swell 2 Height (m) Direction Period (s) | S 15 | S 16 | SSW 16 | SSW 16 | S 16 | S 14 | S 15 | S 15 | S 14 | NW 15 | NW 15 | NNE 7 | NNE 7 | SSW 16 | S 13 | NNE 8 | NNE 8 | NNE 7 | SSW 14 | NNE 6 | NNE 6 | SSW 14 | SSW 14 | S 13 |
| kJ | 68 | 188 | 87 | 86 | 129 | 96 | 209 | 155 | 153 | 136 | 134 | 46 | 47 | 201 | 125 | 37 | 37 | 36 | 215 | 30 | 30 | 160 | 149 | 128 |
Swell 3 Height (m) Direction Period (s) | SSW 17 | NW 12 | SSW 13 | SSW 13 | S 13 | NW 16 | 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 12 | NW 11 |
| kJ | 97 | 35 | 60 | 60 | 55 | 69 | 129 | 88 | 139 | 153 | 107 | 128 | 114 | 125 | 146 | 108 | 58 | 52 | 51 | 51 | 51 | 50 | 47 | 43 |
Wind waves Height (m) Direction Period (s) | — | NW 11 | NW 11 | S 9 | S 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 30 | 31 | 2 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 113 | 1 | 1 | 1 | 19 | 0 | 11 | 100 | 105 | 34 | 1 | 38 | 11 | 19 | 0 | 100 | 100 | 103 | 100 | 11 | 1 | 1 | 1 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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