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:
Kapoho Bay surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 am Friday 19 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Kapoho Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kapoho Bay sea temperature is
25.6° C
(Which is slightly warmer than usual)How big are the waves at Kapoho Bay today?
The current surf forecast for Kapoho Bay at 2PM is: 1.3m 8s primary swell from a East-southeast direction (forecast issued at 07:00am December 19). An open ocean swell of 1.1m 12s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Dec) | 4.5ft (1.3m) | 8s |
| Afternoon (19 Dec) | 4.5ft (1.3m) | 8s |
| Evening (19 Dec) | 4ft (1.2m) | 8s |
Table - waves today at Kapoho Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 19 | Saturday 20 | Sunday 21 | Mon 22 | |||||||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 239 | 239 | 239 | 239 | 239 | 202 | 202 | 197 | 169 | 169 | 165 | 169 | 153 | 169 | 128 | 128 | 153 | 149 | 149 | 176 | 172 | 181 | 159 | 151 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- on | on | on | on | on | cross- on | cross | cross | cross | cross | cross- on | cross | cross | cross | cross | cross |
High Tide / height (m) | 3:16AM 1.01 | 2:36PM 0.51 | 3:50AM 1.02 | 3:11PM 0.50 | 4:24AM 1.02 | 3:46PM 0.50 | ||||||||||||||||||
Low Tide / height (m) | 10:06AM 0.29 | 8:31PM 0.05 | 10:40AM 0.29 | 9:04PM 0.04 | 11:14AM 0.29 | 9:38PM 0.06 | ||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | Mon 22 | |||||||||||||||||||||
| Sunrise | - | 6:47 | - | - | - | - | - | - | - | 6:48 | - | - | - | - | - | - | - | 6:48 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:45 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - | 5:45 | - | - | - |
 |  | | | | | | | | | | | | | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 |
| Feels °C (?) | 25 | 26 | 25 | 24 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 24 | 24 | 24 | 25 | 24 | 24 | 23 | 24 | 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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