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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 Friday 29 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
26.1° C
(Which is slightly warmer than usual)How big are the waves at Waiaha Rivermouth / Honls today (29 May):
- Morning surf: Morning surf (29 May, local time) - 3ft (0.9m), 20s period with SSW swell.
- Afternoon surf: Afternoon surf (29 May, local time) - 3.5ft (1.0m), 19s period with S swell.
- Evening surf: Evening surf (29 May, local time) - 3.5ft (1.0m), 18s period with S swell.
The current surf forecast for Waiaha Rivermouth / Honls at 8AM is: 0.9m 20s primary swell from a South-southwest direction and 0.5m 11s secondary swell from a South direction (forecast issued at 01:00am May 29). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 May) | 3ft (0.9m) | 20s |
| Afternoon (29 May) | 3.5ft (1.0m) | 19s |
| Evening (29 May) | 3.5ft (1.0m) | 18s |
Table - waves today at Waiaha Rivermouth / Honls. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Fri afternoon. Warm (max 26°C on Sun afternoon, min 24°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||||||
Friday 29 | Saturday 30 | Sunday 31 | ||||||||||||||||||||||
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 | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
S 21 | S 20 | SSW 20 | S 20 | S 19 | S 19 | S 18 | S 18 | S 18 | S 17 | S 17 | S 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | S 20 | S 19 | |
436 | 515 | 640 | 775 | 752 | 721 | 668 | 646 | 632 | 617 | 596 | 562 | 443 | 432 | 421 | 416 | 406 | 390 | 375 | 360 | 284 | 280 | 276 | 369 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | glassy | cross-on | on | cross-on | on | on | on | glassy | cross-on | on | on | cross-on | on | on | on | glassy | glassy | glassy | cross-on | cross | cross-on | cross-on | cross-on | |
High Tide | 1:53AM0.23m | 3:10PM0.67m | 2:33AM0.20m | 3:44PM0.68m | 3:13AM0.19m | 4:18PM0.69m | ||||||||||||||||||
Low Tide | 7:40AM-0.05m | 10:27PM0.09m | 8:09AM-0.04m | 11:10PM0.08m | 8:39AM-0.03m | |||||||||||||||||||
 | |  | |  | | | | | | | |  | |  | | | | | | | | | | |
 | — | 5:45 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — |
— | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 25 | 25 | 25 |
26 | 26 | 26 | 26 | 27 | 27 | 28 | 26 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 26 | |
Swell 1 Height (m) Direction Period (s) | S 21 | S 20 | SSW 20 | S 20 | S 19 | S 19 | S 18 | S 18 | S 18 | S 17 | S 17 | S 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
 kJ | 436 | 515 | 640 | 775 | 752 | 721 | 668 | 646 | 632 | 617 | 596 | 562 | 443 | 432 | 421 | 416 | 406 | 390 | 375 | 360 | 284 | 280 | 276 | 346 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 12 | S 12 | S 12 | S 12 | SSW 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | SSW 21 | SSW 20 | S 20 | S 19 |
| kJ | 66 | 61 | 61 | 37 | 39 | 37 | 37 | 64 | 67 | 43 | 43 | 43 | 45 | 42 | 40 | 39 | 21 | 21 | 21 | 20 | 86 | 131 | 276 | 369 |
Swell 3 Height (m) Direction Period (s) | NW 12 | NW 11 | NW 11 | S 14 | NW 11 | S 13 | S 13 | NNW 11 | SSW 12 | SW 12 | SSW 16 | SW 16 | SSW 16 | SW 11 | SW 11 | WSW 11 | WSW 11 | SW 12 | S 21 | S 21 | S 11 | S 11 | S 10 | NW 9 |
| kJ | 22 | 20 | 19 | 35 | 19 | 31 | 31 | 11 | 14 | 6 | 25 | 41 | 25 | 5 | 5 | 12 | 12 | 5 | 36 | 36 | 20 | 20 | 19 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 7 | 0 | 100 | 100 | 100 | 100 | 4 | 19 | 0 | 95 | 100 | 100 | 100 | 100 | 19 | 6 | 0 | 0 | 0 | 81 | 81 | 6 | 6 | 6 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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