Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Mahai'ula Bay surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 am Monday 22 Dec 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 1.1°C warmer than normal for this time of year)How big are the waves at Mahai'ula Bay today?
The current surf forecast for Mahai'ula Bay at 10AM is: 0.4m 11s primary swell from a North direction (forecast issued at 07:00am December 22). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Dec) | 1.5ft (0.4m) | 11s |
| Afternoon (22 Dec) | 1.5ft (0.4m) | 11s |
| Evening (22 Dec) | 1.5ft (0.4m) | 11s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 11 | 11 | 3 | 11 | 11 | 16 | 8 | 7 | 6 | 15 | 2 | 4 | 2 | 9 | 3 | 8 | 8 | 9 | 8 | 8 | 9 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 37 | 37 | 37 | 37 | 2 | 36 | 36 | 0 | 0 | 0 | 3 | 0 | 1 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | cross | cross- on | on | glass | off | glass | glass | cross | cross | cross | cross- off | cross- off | off | glass | glass | glass | cross- on | on | glass | cross- off | glass | on |
High Tide / height (m) | 5:26AM 0.83 | 5:20PM 0.32 | 6:00AM 0.81 | 6:11PM 0.33 | 6:33AM 0.77 | 7:13PM 0.36 | ||||||||||||||||||
Low Tide / height (m) | 12:43PM 0.15 | 10:34PM 0.09 | 1:18PM 0.15 | 11:12PM 0.14 | 1:52PM 0.14 | 11:58PM 0.20 | ||||||||||||||||||
Monday 22 | Tuesday 23 | Wednesday 24 | Thu 25 | |||||||||||||||||||||
| Sunrise | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:51 | - | - | - | - | - | - | - | 5:51 | - | - | - |
 |  | |  | |  | | | | | | | | | | | | | | | | |  |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 26 | 26 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 22 |
| Feels °C (?) | 29 | 28 | 28 | 26 | 27 | 29 | 28 | 27 | 28 | 27 | 28 | 28 | 26 | 25 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 23 |
- 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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