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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 Monday 27 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 slightly warmer than usual)How big are the waves at Mahai'ula Bay today?
The current surf forecast for Mahai'ula Bay at 3PM is: 0.3m 11s primary swell from a Northwest direction and 0.3m 9s secondary swell from a West direction (forecast issued at 07:00am April 27). An open ocean swell of 0.7m 7s is not directed at the surf break, a second open ocean swell of 0.5m 13s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Apr) | 1.5ft (0.4m) | 11s |
| Afternoon (27 Apr) | 1ft (0.3m) | 11s |
| Evening (27 Apr) | 1ft (0.3m) | 11s |
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 4mm), mostly falling on Tue morning. Warm (max 26°C on Mon morning, min 23°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thu 30 | |||||||||||||||||||||
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 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NNW 10 | SW 13 | NW 10 | NNW 10 | NNW 10 | NNW 10 | WNW 14 | NNE 6 | NNE 7 | NW 13 | NW 13 | NW 12 | NNE 5 | NW 12 | NW 12 | NW 12 | NW 11 | |
32 | 32 | 19 | 19 | 19 | 18 | 17 | 10 | 58 | 16 | 11 | 10 | 10 | 21 | 0 | 0 | 27 | 43 | 55 | 73 | 52 | 36 | 34 | 20 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | glassy | cross | cross-on | on | glassy | glassy | cross-off | glassy | glassy | cross-on | cross-on | cross | cross-off | glassy | glassy | cross | cross | cross-on | glassy | glassy | glassy | glassy | glassy | |
High Tide | 1:59PM0.61m | 1:32AM0.57m | 2:32PM0.68m | 2:08AM0.52m | 3:02PM0.75m | |||||||||||||||||||
Low Tide | 7:28AM0.09m | 7:53PM0.23m | 7:51AM0.07m | 8:44PM0.21m | 8:13AM0.06m | 9:30PM0.19m | ||||||||||||||||||
 |  |  | | | | | | | |  | | |  |  | | | | | | |  | | | |
 | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | 5:56 |
 | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | 6:46 |
— | — | — | — | — | — | — | — | — | — | 1 | 1 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 25 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 23 |
26 | 27 | 27 | 26 | 27 | 28 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 27 | 26 | 25 | 26 | 26 | 27 | 28 | 27 | 26 | 26 | |
Swell 1 Height (m) Direction Period (s) | NNE 8 | NNE 8 | NNE 8 | NE 7 | NE 7 | NE 7 | NE 7 | NNE 7 | NNE 6 | NNE 7 | NNE 7 | NNE 7 | NE 6 | NE 6 | NNE 6 | NNE 7 | NNE 7 | NW 13 | NW 12 | NW 12 | NNE 6 | NNE 5 | NNE 5 | NNE 6 |
 kJ | 69 | 74 | 50 | 54 | 53 | 50 | 47 | 38 | 28 | 29 | 26 | 30 | 40 | 43 | 56 | 53 | 43 | 43 | 55 | 53 | 69 | 42 | 26 | 27 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | NE 7 | SW 12 | SSE 10 | NW 12 | NW 12 | NW 12 | SSE 5 |
| kJ | 89 | 88 | 85 | 85 | 84 | 84 | 84 | 83 | 58 | 39 | 38 | 37 | 37 | 37 | 36 | 36 | 36 | 12 | 21 | 10 | 52 | 36 | 34 | 4 |
Swell 3 Height (m) Direction Period (s) | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NNW 10 | NNE 8 | NW 10 | NNW 10 | NNW 10 | NNW 10 | WNW 14 | SSE 11 | SSE 11 | NW 13 | SW 12 | S 4 | SSW 11 | SSE 10 | S 18 | S 18 | NW 11 |
| kJ | 32 | 32 | 19 | 19 | 19 | 18 | 17 | 10 | 7 | 16 | 11 | 10 | 10 | 21 | 12 | 23 | 27 | 36 | 1 | 12 | 10 | 25 | 55 | 20 |
Wind waves Height (m) Direction Period (s) | N 8 | — | WSW 9 | W 9 | — | — | — | S 4 | WSW 8 | — | W 8 | W 8 | W 8 | — | SSE 5 | — | — | NNE 4 | NNE 5 | NNE 5 | — | NW 2 | NW 3 | N 5 |
| kJ | 44 | — | 16 | 14 | — | — | — | 1 | 7 | — | 5 | 5 | 1 | — | 5 | — | — | 12 | 30 | 73 | — | 1 | 3 | 13 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 1 | 100 | 105 | 100 | 1 | 1 | 1 | 1 | 11 | 105 | 105 | 105 | 105 | 11 | 19 | 19 | 11 | 11 | 0 | 1 | 1 | 18 | 100 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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