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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 Tuesday 21 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
25.4° 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 3AM is: 0.8m 14s primary swell from a West direction and 0.4m 13s secondary swell from a Southwest direction (forecast issued at 07:00pm April 21). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Apr) | 2.5ft (0.8m) | 14s |
| Afternoon (22 Apr) | 2.5ft (0.8m) | 14s |
| Evening (22 Apr) | 2.5ft (0.8m) | 14s |
Table - waves today at Waiaha Rivermouth / Honls. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 26°C on Thu afternoon, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 21 | Wednesday 22 | Thursday 23 | Fri 24 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
W 16 | W 15 | W 16 | W 15 | W 14 | W 14 | W 14 | W 14 | WNW 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 13 | W 13 | WNW 16 | WNW 16 | W 13 | WNW 15 | WNW 15 | WNW 15 | WNW 14 | WNW 13 | |
122 | 215 | 239 | 272 | 264 | 264 | 264 | 264 | 269 | 250 | 181 | 229 | 173 | 171 | 168 | 168 | 147 | 147 | 128 | 123 | 167 | 167 | 215 | 184 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | glassy | cross-on | cross-on | on | cross | cross | cross | cross | glassy | cross-on | on | cross-on | cross-off | cross | cross | glassy | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross | |
High Tide | 7:43PM0.66m | 7:57AM0.14m | 8:49PM0.63m | 9:50AM0.16m | 9:55PM0.60m | 11:19AM0.22m | ||||||||||||||||||
Low Tide | 3:48AM0.06m | 12:42PM0.04m | 4:53AM0.04m | 2:08PM0.09m | 5:41AM0.02m | |||||||||||||||||||
 |  |  | | |  | | | | | | |  | | | | | | | | | | | | |
 | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 5:58 | — | — | — |
 | 6:43 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | 6:44 |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 |
28 | 29 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 26 | 26 | 28 | 28 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | W 12 | W 15 | W 16 | W 15 | W 14 | W 14 | W 14 | W 14 | WNW 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | WNW 15 | WNW 15 | WNW 15 | WNW 14 | WNW 13 |
 kJ | 74 | 215 | 239 | 272 | 264 | 264 | 264 | 264 | 269 | 250 | 181 | 229 | 173 | 171 | 168 | 168 | 125 | 125 | 128 | 123 | 167 | 167 | 215 | 184 |
Swell 2 Height (m) Direction Period (s) | W 16 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | WNW 18 | WNW 18 | WNW 18 | WNW 17 | WNW 16 | WNW 16 | WNW 16 | W 12 | W 12 | W 12 | SW 13 | SW 13 |
| kJ | 122 | 43 | 42 | 42 | 42 | 40 | 39 | 38 | 38 | 23 | 23 | 22 | 62 | 104 | 103 | 99 | 147 | 147 | 86 | 76 | 78 | 76 | 28 | 28 |
Swell 3 Height (m) Direction Period (s) | SW 13 | S 11 | S 11 | WNW 13 | NW 13 | NW 12 | NW 12 | NW 12 | SSW 10 | NW 11 | NW 11 | WNW 19 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SSW 12 | SSW 15 | SW 14 | SW 13 | SW 13 | SSW 13 | SSW 13 |
| kJ | 44 | 9 | 9 | 17 | 27 | 23 | 23 | 23 | 10 | 19 | 19 | 72 | 22 | 22 | 22 | 22 | 21 | 13 | 21 | 31 | 28 | 28 | 17 | 17 |
Wind waves Height (m) Direction Period (s) | NW 9 | — | — | — | — | — | — | SSW 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 11 |
| kJ | 13 | — | — | — | — | — | — | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 30 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 47 | 0 | 6 | 20 | 0 | 19 | 71 | 50 | 38 | 0 | 6 | 19 | 19 | 0 | 50 | 45 | 0 | 6 | 8 | 7 | 0 | 0 | 45 | 81 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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