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:
Generals surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 pm Friday 19 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Generals surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Generals 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 Generals today?
The current surf forecast for Generals at 2AM is: 0.5m 11s primary swell from a North direction (forecast issued at 07:00pm December 19). An open ocean swell of 0.5m 5s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Dec) | 1.5ft (0.4m) | 11s |
| Afternoon (20 Dec) | 1.5ft (0.4m) | 14s |
| Evening (20 Dec) | 1.5ft (0.4m) | 14s |
Table - waves today at Generals. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||||||||
| 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) (?) | 9 | 12 | 11 | 11 | 11 | 11 | 11 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 11 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 79 | 78 | 74 | 64 | 63 | 41 | 42 | 53 | 54 | 82 | 85 | 84 | 110 | 139 | 98 | 67 | 60 | 57 | 52 | 52 | 37 | 37 | 37 | 37 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | glass | glass | glass | glass | cross- on | cross | cross | on | cross- on | on | cross | cross | cross- on | cross- on | glass | glass | glass | glass | glass | glass | cross- on | on |
High Tide / height (m) | 3:12PM 0.20 | 4:11AM 0.73 | 3:53PM 0.19 | 4:45AM 0.73 | 4:35PM 0.19 | 5:20AM 0.72 | ||||||||||||||||||
Low Tide / height (m) | 8:32PM -0.02 | 11:44AM 0.08 | 9:05PM -0.01 | 12:21PM 0.07 | 9:40PM 0.01 | 12:57PM 0.06 | ||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:54 | - | - |
| Sunset | 5:49 | - | - | - | - | - | - | - | 5:49 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - |
 |  | | | | | | | | |  | | | | |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 |
| Feels °C (?) | 27 | 28 | 29 | 29 | 28 | 29 | 28 | 28 | 28 | 28 | 26 | 27 | 27 | 26 | 27 | 27 | 29 | 28 | 28 | 27 | 27 | 27 | 27 | 26 |
- 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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