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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 Sunday 30 Nov 2025 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
26.2° 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 6PM is: 2.2m 16s primary swell from a Northwest direction (forecast issued at 01:00pm November 30). An open ocean swell of 0.3m 10s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Nov) | 7.5ft (2.3m) | 17s |
| Afternoon (30 Nov) | 7.5ft (2.3m) | 17s |
| Evening (30 Nov) | 7ft (2.1m) | 16s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 30 | Monday 01 | Tuesday 02 | Wednesday 03 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 14 | 11 | 12 | 12 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3074 | 3039 | 2600 | 2349 | 2146 | 1314 | 899 | 666 | 1135 | 485 | 844 | 667 | 521 | 478 | 357 | 253 | 142 | 125 | 103 | 123 | 119 | 123 | 105 | 103 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | cross- on | cross | cross | cross- on | glass | cross- on | cross- on | glass | cross | cross- on | glass | glass | glass | on | cross- on | cross- on | cross | cross | cross | cross- off | glass |
High Tide / height (m) | 11:32AM 0.51 | 1:17AM 0.73 | 12:30PM 0.45 | 1:59AM 0.83 | 1:26PM 0.41 | 2:42AM 0.91 | ||||||||||||||||||
Low Tide / height (m) | 6:06PM 0.05 | 7:45AM 0.26 | 6:42PM 0.02 | 8:48AM 0.20 | 7:20PM -0.01 | |||||||||||||||||||
Sunday 30 | Monday 01 | Tuesday 02 | Wednesday 03 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:43 |
| Sunset | - | - | 5:43 | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:44 | - | - | - | - | - |
 | | |  |  | | |  | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 25 | 25 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 |
| Feels °C (?) | 25 | 25 | 26 | 26 | 24 | 24 | 25 | 26 | 27 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 25 | 24 | 25 | 24 | 23 | 24 | 25 | 25 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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