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:
Kua Bay surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 1 am Sunday 21 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Kua Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kua 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 Kua Bay today?
The current surf forecast for Kua Bay at 4AM is: 1.3m 12s primary swell from a North direction and 0.2m 13s secondary swell from a West-northwest direction (forecast issued at 01:00am December 21). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Dec) | 4ft (1.2m) | 12s |
| Afternoon (21 Dec) | 3.5ft (1.1m) | 12s |
| Evening (21 Dec) | 3.5ft (1.0m) | 11s |
Table - waves today at Kua Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 21 | Monday 22 | Tuesday 23 | ||||||||||||||||||||||
| 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 | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 11 | 11 | 11 | 10 | 11 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 569 | 551 | 485 | 461 | 380 | 314 | 314 | 255 | 255 | 246 | 196 | 192 | 189 | 189 | 229 | 0 | 0 | 0 | 12 | 2 | 2 | 0 | 2 | 0 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | glass | glass | on | cross- on | cross | cross- off | glass | glass | glass | off | cross | cross | glass | glass | glass | glass | cross | glass | cross- on | glass | cross- off | cross |
High Tide / height (m) | 4:53AM 0.84 | 4:38PM 0.31 | 5:26AM 0.83 | 5:20PM 0.32 | 6:00AM 0.81 | 6:11PM 0.33 | ||||||||||||||||||
Low Tide / height (m) | 9:24PM 0.04 | 12:08PM 0.15 | 9:58PM 0.06 | 12:43PM 0.15 | 10:34PM 0.09 | 1:18PM 0.15 | ||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:51 | - |
 | |  |  |  | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 24 | 24 | 24 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 26 | 26 | 25 | 24 |
| Feels °C (?) | 29 | 27 | 28 | 27 | 28 | 27 | 28 | 27 | 28 | 28 | 28 | 26 | 28 | 28 | 28 | 29 | 27 | 27 | 26 | 27 | 28 | 28 | 27 | 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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