Surf Forecasts:
How big are the waves at Waipio Valley today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 6ft (1.8m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 6ft (1.8m), 8s period with ENE swell.
- Evening surf: Evening surf (21 Sep, local time) - 5.5ft (1.7m), 8s period with ENE swell.
The current surf forecast for Waipio Valley at 10AM is: 1.8m 8s primary swell from a East-northeast direction and 0.2m 10s secondary swell from a North-northwest direction, 0.1m 12s secondary swell from a West direction (forecast issued at 01:00am September 21). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 6ft (1.8m) | 8s |
| Afternoon (21 Sep) | 6ft (1.8m) | 8s |
| Evening (21 Sep) | 5.5ft (1.7m) | 8s |
Table - waves today at Waipio Valley. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Mon afternoon. Warm (max 29°C on Tue morning, min 25°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 493 | 455 | 455 | 445 | 445 | 389 | 389 | 412 | 367 | 367 | 412 | 549 | 723 | 836 | 993 | 1013 | 1013 | 910 | 813 | 700 | 685 | 593 | 580 | 580 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 11:17PM0.42m | 12:20PM0.79m | 00:08AM0.48m | 12:50PM0.82m | 00:47AM0.55m | 1:17PM0.83m | ||||||||||||||||||
Low Tide | 4:52AM0.24m | 7:16PM0.31m | 5:47AM0.21m | 7:29PM0.27m | 6:33AM0.19m | 7:46PM0.23m | ||||||||||||||||||
 |  |  |  |  |  | |  | | | | | | | | | | | | | | | | | |
 | — | 6:09 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:19 | — | — | — | — | — | — | — | 6:17 | — | — | — | — | — | — | — | 6:16 | — | — |
mm | — | — | — | — | 1 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Temp °C | 26 | 26 | 27 | 28 | 28 | 27 | 26 | 27 | 26 | 26 | 27 | 29 | 29 | 27 | 27 | 26 | 26 | 26 | 26 | 28 | 28 | 27 | 26 | 26 |
Feels °C | 26 | 26 | 27 | 29 | 30 | 28 | 27 | 28 | 27 | 27 | 27 | 30 | 30 | 28 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 27 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | N 14 | NNW 13 | N 13 | N 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 | E 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 |
| kJ | 5 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 36 | 59 | 87 | 110 | 150 | 145 | 130 | 126 | 123 | 813 | 86 | 82 | 83 | 83 | 80 |
Swell 2 Height (m) Direction Period (s) | W 12 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | N 15 | NNW 9 | NNW 9 | W 13 | W 13 | W 12 | W 12 | W 12 | W 12 | W 12 | NNW 11 | W 11 | W 11 | W 11 | W 11 | W 11 |
| kJ | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 10 | 17 | 8 | 8 | 13 | 13 | 12 | 11 | 11 | 11 | 11 | 123 | 9 | 9 | 9 | 9 | 9 |
Swell 3 Height (m) Direction Period (s) | N 7 | — | W 12 | W 12 | W 12 | N 17 | N 16 | N 15 | W 11 | W 11 | W 13 | NNW 9 | — | W 10 | W 10 | — | W 12 | W 12 | W 12 | W 11 | — | — | E 15 | E 15 |
| kJ | 1 | — | 3 | 3 | 3 | 6 | 5 | 5 | 10 | 10 | 3 | 8 | — | 2 | 2 | — | 11 | 11 | 11 | 10 | — | — | 4 | 4 |
Wind waves Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | — | E 9 | E 9 | E 9 | E 9 | E 9 |
| kJ | 493 | 455 | 455 | 445 | 445 | 389 | 389 | 412 | 367 | 367 | 412 | 549 | 723 | 836 | 993 | 1013 | 1013 | 910 | — | 700 | 685 | 593 | 580 | 580 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 65 | 56 | 59 | 71 | 104 | 59 | 59 | 59 | 59 | 59 | 67 | 71 | 71 | 59 | 67 | 67 | 67 | 67 | 67 | 59 | 56 | 59 | 59 | 56 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Waipio Valley 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.
Nearest