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 5AM is: 1.8m 9s primary swell from a East-northeast direction and 0.2m 11s 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 | ||||||||||||||||||||||||
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