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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 pm Wednesday 18 Feb 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
25.1° 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 11PM is: 0.3m 3s primary swell from a West direction (forecast issued at 07:00pm February 18). An open ocean swell of 1.2m 10s is not directed at the surf break, a second open ocean swell of 0.4m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Feb) | - | - |
| Afternoon (18 Feb) | 1.5ft (0.4m) | 3s |
| Evening (18 Feb) | 1ft (0.3m) | 3s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | |||||||||||||||||||||
| 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 | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 3 | 3 | 3 | 3 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 3 | 3 | 11 | 10 | 9 | 9 | 9 | 8 | 9 | 9 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3 | 1 | 1 | 3 | 41 | 42 | 42 | 38 | 23 | 22 | 27 | 22 | 32 | 1 | 1 | 30 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 33 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross- off | cross- off | glass | off | glass | on | glass | off | glass | glass | cross | glass | glass | on | on | glass | cross- off | glass | glass | glass | cross | cross- on |
High Tide / height (m) | 5:00AM 0.74 | 5:37PM 0.60 | 5:28AM 0.66 | 6:22PM 0.64 | 5:56AM 0.58 | |||||||||||||||||||
Low Tide / height (m) | 10:38PM 0.11 | 11:29AM 0.06 | 11:24PM 0.16 | 11:54AM 0.06 | 12:17AM 0.22 | 12:22PM 0.06 | ||||||||||||||||||
Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:48 | - | - |
| Sunset | 6:23 | - | - | - | - | - | - | - | 6:24 | - | - | - | - | - | - | - | 6:24 | - | - | - | - | - | - | - |
 |  |  | | | | | | | | |  | | | |  | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 24 | 23 | 23 | 22 | 22 | 22 | 24 | 23 | 24 | 23 | 23 | 22 | 22 | 22 | 24 | 24 | 24 | 23 | 22 | 22 | 22 | 23 | 24 | 24 |
| Feels °C (?) | 25 | 24 | 24 | 23 | 23 | 22 | 25 | 24 | 26 | 24 | 24 | 24 | 23 | 23 | 25 | 25 | 25 | 26 | 23 | 24 | 24 | 25 | 24 | 24 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mahai'ula Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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