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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 08 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
25.8° 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 5PM is: 0.7m 12s primary swell from a Northwest direction (forecast issued at 01:00pm May 08). An open ocean swell of 0.4m 16s is not directed at the surf break, a second open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 May) | 2.5ft (0.8m) | 13s |
| Afternoon (08 May) | 2.5ft (0.7m) | 12s |
| Evening (08 May) | 2.5ft (0.7m) | 12s |
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 8mm), mostly falling on Sat afternoon. Warm (max 26°C on Fri afternoon, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 8 | Saturday 9 | Sunday 10 | Mon 11 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 11 | NNE 5 | NW 12 | NW 11 | NW 12 | NW 12 | NW 12 | NW 11 | |
168 | 156 | 148 | 146 | 144 | 116 | 114 | 86 | 82 | 60 | 59 | 42 | 42 | 42 | 30 | 28 | 30 | 37 | 24 | 30 | 37 | 53 | 50 | 33 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | glassy | cross | cross | cross-off | cross | cross-on | cross-on | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | glassy | glassy | cross | glassy | glassy | cross-off | |
High Tide | 9:04AM0.27m | 9:09PM0.65m | 10:58AM0.32m | 10:05PM0.63m | 12:00PM0.41m | 10:59PM0.61m | ||||||||||||||||||
Low Tide | 12:53PM0.23m | 5:11AM0.18m | 2:33PM0.28m | 5:42AM0.15m | 4:29PM0.31m | 6:08AM0.12m | ||||||||||||||||||
 | |  |  | | |  |  | | | | | | | | | | | | |  | | |  | |
 | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — |
 | — | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | 6:51 |
— | — | — | — | — | — | 1 | 1 | 1 | 1 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 23 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 |
26 | 26 | 28 | 28 | 27 | 25 | 27 | 26 | 27 | 27 | 28 | 28 | 27 | 27 | 25 | 27 | 28 | 27 | 28 | 27 | 26 | 27 | 26 | 27 | |
Swell 1 Height (m) Direction Period (s) | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | S 15 | S 14 | NNE 5 | NNE 5 | NNE 5 | SSW 13 | SSW 13 | SSW 13 | NW 11 | NNE 5 | NNE 5 | NNE 5 | NNE 5 | NW 12 | NW 11 |
 kJ | 168 | 156 | 148 | 146 | 144 | 116 | 114 | 86 | 82 | 109 | 107 | 30 | 23 | 20 | 58 | 58 | 35 | 29 | 42 | 33 | 20 | 21 | 50 | 33 |
Swell 2 Height (m) Direction Period (s) | S 17 | S 17 | SSW 16 | S 16 | S 16 | S 16 | SSW 16 | SSW 15 | S 15 | NW 11 | NNE 5 | S 14 | NW 11 | NW 11 | NW 11 | NW 10 | NW 11 | SSW 13 | NW 10 | NW 11 | SSW 13 | NW 12 | SSW 19 | SSW 18 |
| kJ | 151 | 146 | 90 | 188 | 131 | 129 | 83 | 47 | 109 | 60 | 9 | 107 | 42 | 42 | 30 | 28 | 30 | 34 | 16 | 30 | 33 | 53 | 118 | 106 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | SSE 10 | N 4 | NNE 4 | SSW 12 | SSW 12 | S 9 | S 9 | NW 11 | NW 11 | SSW 14 | SSW 12 | S 3 | S 4 | WNW 13 | WNW 13 | NW 12 | SSW 19 | NW 12 | SSW 19 | SSE 9 | SSW 12 |
| kJ | 58 | 58 | 34 | 9 | 10 | 6 | 30 | 30 | 14 | 14 | 59 | 42 | 41 | 28 | 2 | 2 | 17 | 16 | 24 | 68 | 37 | 69 | 7 | 29 |
Wind waves Height (m) Direction Period (s) | NNE 3 | NNE 4 | NNE 4 | NNE 4 | — | S 10 | S 3 | — | — | NNE 5 | N 5 | — | S 3 | — | NNE 5 | NNE 5 | NNE 5 | NNE 5 | SW 2 | SW 2 | — | — | NNE 5 | NNE 6 |
| kJ | 3 | 10 | 20 | 18 | — | 8 | 1 | — | — | 4 | 2 | — | 1 | — | 13 | 13 | 20 | 37 | 1 | 1 | — | — | 33 | 74 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 19 | 19 | 11 | 0 | 24 | 99 | 0 | 99 | 100 | 113 | 100 | 1 | 13 | 11 | 11 | 11 | 0 | 105 | 1 | 18 | 11 | 1 | 11 | 11 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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