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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
16 Day Weather and Surf, issued 1 am Friday 22 May 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
26.6° C
(Which is 1.3°C warmer than normal for this time of year)Best Forecast Surf Conditions for Waiaha Rivermouth / Honls this week:
The surf forecast for Waiaha Rivermouth / Honls over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 22) at 8PM. The primary swell is predicted to be 0.5m and 17s period with a secondary swell of 0.4m and 14s. Another secondary swell of 0.4m and 3s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Waiaha Rivermouth / Honls in the next 16 days are 0.9m 20s and forecast to arrive on Friday (May 29) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (May 25) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 22nd May) | 1.5ft (0.5m) 17s |
| Best Surf | 2AM (Fri 29th May) | 2.5ft (0.7m) 21s |
| Most Powerful | 8AM (Fri 29th May) | 3ft (0.9m) 20s |
Table - best surf conditions forecast for Waiaha Rivermouth / Honls over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 6mm), mostly falling on Fri night. Warm (max 26°C on Fri morning, min 24°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Tue night. Warm (max 26°C on Mon morning, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
S 18 | S 17 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 16 | S 15 | S 14 | S 14 | S 13 | S 13 | S 12 | SSW 22 | S 21 | |
115 | 148 | 190 | 233 | 212 | 148 | 132 | 136 | 82 | 85 | 123 | 84 | 179 | 163 | 203 | 134 | 128 | 115 | 108 | 158 | 428 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross | cross-on | on | glassy | glassy | cross-on | glassy | glassy | on | glassy | cross | on | cross-on | glassy | on | on | glassy | cross-on | cross-on | glassy | |
High Tide | 9:40AM0.22m | 9:07PM0.56m | 10:58AM0.29m | 10:01PM0.49m | 11:57AM0.38m | 10:53PM0.43m | 12:44PM0.46m | 11:42PM0.36m | 1:25PM0.53m | 00:28AM0.30m | 2:01PM0.59m | 1:12AM0.26m | 2:36PM0.64m | 1:53AM0.23m | |||||||
Low Tide | 1:57PM0.13m | 4:40AM-0.01m | 3:38PM0.17m | 5:16AM-0.02m | 5:16PM0.19m | 5:48AM-0.03m | 6:41PM0.18m | 6:17AM-0.04m | 7:51PM0.16m | 6:45AM-0.04m | 8:50PM0.13m | 7:12AM-0.05m | 9:41PM0.11m | ||||||||
 |  |  | |  | | | | | | |  | | | | | | | | | | |
 | 5:46 | — | — | 5:46 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — |
 | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:55 | — | — | 6:55 | — | — | 6:57 | — | — | 6:57 | — |
— | — | 1 | — | 2 | 1 | — | — | 2 | — | — | — | — | — | 1 | — | 2 | 4 | 1 | 2 | 4 | |
Temp °C | 26 | 26 | 24 | 26 | 25 | 24 | 25 | 26 | 25 | 26 | 26 | 24 | 26 | 25 | 24 | 26 | 25 | 25 | 26 | 25 | 25 |
28 | 28 | 26 | 27 | 27 | 25 | 26 | 26 | 27 | 27 | 28 | 25 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | S 17 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 16 | S 15 | S 14 | S 14 | S 13 | S 13 | S 12 | S 12 | S 21 |
 kJ | 115 | 148 | 190 | 233 | 212 | 148 | 132 | 136 | 82 | 85 | 123 | 84 | 179 | 163 | 203 | 134 | 128 | 115 | 108 | 104 | 428 |
Swell 2 Height (m) Direction Period (s) | S 18 | S 14 | S 13 | NW 11 | NNW 11 | SE 4 | S 16 | NNW 13 | S 15 | NNW 12 | NW 11 | S 17 | NW 11 | S 4 | WNW 18 | NW 16 | NW 15 | NW 14 | NW 13 | NW 12 | S 12 |
| kJ | 99 | 93 | 89 | 5 | 11 | 1 | 20 | 16 | 39 | 13 | 5 | 22 | 4 | 1 | 30 | 63 | 106 | 89 | 83 | 37 | 66 |
Swell 3 Height (m) Direction Period (s) | SSE 12 | SSE 12 | NNW 11 | SE 12 | S 11 | NW 15 | NW 13 | NNW 10 | NNW 12 | — | NNW 11 | S 4 | SW 18 | NW 20 | NW 10 | NW 10 | SW 16 | SW 16 | S 23 | SSW 22 | NW 12 |
| kJ | 14 | 14 | 11 | 5 | 2 | 8 | 7 | 9 | 14 | — | 12 | 1 | 12 | 15 | 4 | 4 | 11 | 10 | 43 | 158 | 36 |
Wind waves Height (m) Direction Period (s) | SW 11 | SW 11 | — | WSW 2 | — | WSW 3 | — | — | WNW 3 | SSW 4 | W 3 | — | — | WNW 3 | NW 3 | — | — | — | — | — | — |
| kJ | 19 | 19 | — | 1 | — | 1 | — | — | 1 | 2 | 2 | — | — | 3 | 2 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 459 | 4 | 19 | 0 | 0 | 100 | 0 | 0 | 19 | 0 | 100 | 100 | 100 | 0 | 119 | 8 | 0 | 100 | 100 | 0 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Waiaha Rivermouth / Honls surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Waiaha Rivermouth / Honls Surf forecast
The above surf forecast table for Waiaha Rivermouth / Honls provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Waiaha Rivermouth / Honls can be found by selecting the local surf guide option on the grey menu. Our Waiaha Rivermouth / Honls surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Waiaha Rivermouth / Honls) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Waiaha Rivermouth / Honls may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Waiaha Rivermouth / Honls is 95 km (59 miles) from Hilo. If you plan a vacation in Big Island, look for hotels and other accommodation in Hilo. Hilo has rooms for a wide range of budgets as well as car hire and transport links.
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