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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 7 pm Monday 20 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
25.3° 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 2AM is: 0.5m 13s primary swell from a West direction and 0.4m 14s secondary swell from a Southwest direction (forecast issued at 07:00pm April 20). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Apr) | 2ft (0.6m) | 13s |
| Afternoon (21 Apr) | 1.5ft (0.5m) | 16s |
| Evening (21 Apr) | 2.5ft (0.7m) | 15s |
Table - waves today at Waiaha Rivermouth / Honls. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||||||||
| 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) (?) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 16 | 16 | 15 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 85 | 121 | 84 | 84 | 123 | 125 | 173 | 122 | 122 | 215 | 239 | 272 | 264 | 264 | 264 | 264 | 257 | 250 | 181 | 229 | 173 | 171 | 168 | 168 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | cross- on | glass | glass | cross- on | cross- on | cross- on | glass | glass | cross- on | on | cross | cross- on | cross | cross | on | cross- on | on | glass | cross | cross | cross- on |
High Tide / height (m) | 6:42PM 0.69 | 6:27AM 0.15 | 7:43PM 0.66 | 7:57AM 0.14 | 8:49PM 0.63 | 9:50AM 0.16 | ||||||||||||||||||
Low Tide / height (m) | 2:30AM 0.07 | 11:42AM -0.01 | 3:48AM 0.06 | 12:42PM 0.04 | 4:53AM 0.04 | |||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:00 | - | - |
| Sunset | 6:43 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:44 | - | - | - | - | - | - | - |
 |  |  | | | | | |  | | | | | | | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - |
| Temp. °C | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 |
| Feels °C (?) | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 29 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 26 | 27 | 28 |
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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