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Waiaha Rivermouth / Honls Surf Forecast
/ HAW – Big Island (60 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Waiaha Rivermouth / Honls surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 1 am Sunday 19 Apr 2026 HSTForecast update in hr min s Forecast update imminent
Waiaha Rivermouth / Honls surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waiaha Rivermouth / Honls sea temperature is
25.5° C
(Which is slightly warmer than usual)How big are the waves at Waiaha Rivermouth / Honls today?
The current surf forecast for Waiaha Rivermouth / Honls at 9AM is: 0.4m 12s primary swell from a West direction and 0.3m 11s secondary swell from a South direction (forecast issued at 01:00am April 19). The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Apr) | 1.5ft (0.4m) | 12s |
| Afternoon (19 Apr) | 1.5ft (0.4m) | 12s |
| Evening (19 Apr) | 1.5ft (0.5m) | 13s |
Table - waves today at Waiaha Rivermouth / Honls. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 19 | Monday 20 | Tuesday 21 | ||||||||||||||||||||||
| 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) (?) | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 16 | 16 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 46 | 46 | 72 | 41 | 41 | 41 | 39 | 85 | 85 | 87 | 89 | 93 | 97 | 96 | 85 | 121 | 84 | 84 | 123 | 125 | 173 | 129 | 122 | 215 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | glass | cross- off | cross | on | on | cross- on | cross- on | glass | cross- off | cross- off | cross | cross | cross- on | cross- on | cross- on | on | on | glass | cross | cross | cross | cross |
High Tide / height (m) | 4:38AM 0.24 | 5:46PM 0.71 | 5:26AM 0.19 | 6:42PM 0.69 | 6:27AM 0.15 | 7:43PM 0.66 | ||||||||||||||||||
Low Tide / height (m) | 12:02AM 0.05 | 10:17AM -0.07 | 1:12AM 0.07 | 10:56AM -0.05 | 2:30AM 0.07 | 11:42AM -0.01 | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:01 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:43 | - |
 |  | |  |  | | | |  | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 24 | 25 | 25 | 25 | 24 |
| Feels °C (?) | 26 | 26 | 27 | 25 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 26 | 26 | 27 | 28 | 27 | 26 | 27 | 26 | 27 | 27 | 27 | 27 | 26 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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