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:
Coast Guard surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 1 am Wednesday 31 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Coast Guard surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Coast Guard sea temperature is
26.0° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Coast Guard today?
The current surf forecast for Coast Guard at 12PM is: 1.0m 14s primary swell from a North-northwest direction and 1.5m 8s secondary swell from a East-northeast direction (forecast issued at 01:00am December 31). An open ocean swell of 0.3m 17s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Dec) | 3.5ft (1.0m) | 14s |
| Afternoon (31 Dec) | 3.5ft (1.0m) | 14s |
| Evening (31 Dec) | 3.5ft (1.0m) | 14s |
Table - waves today at Coast Guard. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 31 | Thursday 01 | Friday 02 | ||||||||||||||||||||||
| 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) (?) | 16 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 9 | 12 | 12 | 9 | 9 | 12 | 8 | 8 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 435 | 527 | 474 | 449 | 443 | 425 | 366 | 361 | 388 | 405 | 355 | 350 | 286 | 275 | 235 | 187 | 336 | 259 | 174 | 299 | 373 | 521 | 647 | 571 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 1:25AM 0.91 | 11:54AM 0.39 | 2:10AM 0.98 | 12:59PM 0.38 | 2:53AM 1.02 | 1:54PM 0.38 | ||||||||||||||||||
Low Tide / height (m) | 8:44AM 0.34 | 6:19PM -0.00 | 9:27AM 0.29 | 7:08PM -0.03 | 10:06AM 0.26 | 7:55PM -0.05 | ||||||||||||||||||
Wednesday 31 | Thursday 01 | Friday 02 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:53 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - |
 |  | |  | | | | |  | | |  | | | | | | | |  |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | - |
| Temp. °C | 23 | 23 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 24 | 24 | 23 | 23 | 23 | 23 | 22 | 23 | 22 | 22 | 22 | 22 |
| Feels °C (?) | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 21 | 20 | 19 | 19 | 18 | 21 | 20 | 19 | 19 | 20 | 21 | 19 | 19 | 17 | 18 | 17 | 17 |
- 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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