Surf Forecasts:
How big are the waves at Waipio Valley today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 2.5ft (0.8m), 7s period with NE swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 6ft (1.8m), 6s period with ENE swell.
- Evening surf: Evening surf (21 Aug, local time) - 4.5ft (1.4m), 7s period with E swell.
The current surf forecast for Waipio Valley at 5PM is: 1.7m 6s primary swell from a East-northeast direction and 0.4m 11s secondary swell from a West direction, 0.1m 9s secondary swell from a West direction (forecast issued at 01:00pm August 21). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 2.5ft (0.8m) | 7s |
| Afternoon (21 Aug) | 6ft (1.8m) | 6s |
| Evening (21 Aug) | 4.5ft (1.4m) | 7s |
Table - waves today at Waipio Valley. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Sun morning. Warm (max 29°C on Sat morning, min 25°C on Sat night). Mainly fresh winds. | |||||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | |||||||||||||||||||
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 5 | ENE 6 | ENE 6 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 100 | 217 | 201 | 205 | 184 | 200 | 239 | 283 | 368 | 454 | 432 | 450 | 537 | 550 | 548 | 503 | 548 | 582 | 493 | 339 | 382 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross |
High Tide | 11:52AM0.74m | 12:36PM0.79m | 11:16PM0.41m | 1:09PM0.83m | |||||||||||||||||
Low Tide | 4:24AM0.22m | 8:02PM0.38m | 5:27AM0.18m | 8:07PM0.35m | |||||||||||||||||
 | | |  | | | |  | | | | | | | | |  | |  |  |  | |
 | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 1 | 1 | — |
Temp °C | 29 | 28 | 28 | 27 | 27 | 26 | 26 | 27 | 29 | 29 | 28 | 27 | 26 | 26 | 25 | 25 | 27 | 27 | 27 | 26 | 26 |
Feels °C | 31 | 30 | 30 | 28 | 28 | 26 | 26 | 27 | 29 | 29 | 28 | 27 | 25 | 24 | 24 | 25 | 27 | 27 | 28 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 11 | NNE 7 | W 10 | W 10 | W 10 | W 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | W 9 | WNW 10 | NNE 6 | NW 11 |
| kJ | 31 | 35 | 37 | 15 | 32 | 31 | 17 | 17 | 19 | 19 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 7 | 9 | 32 | 5 |
Swell 2 Height (m) Direction Period (s) | W 9 | W 8 | W 9 | W 11 | NNE 7 | NNE 7 | W 9 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | NW 12 | NW 12 | WNW 12 | NW 11 | WNW 11 | W 9 |
| kJ | 1 | 1 | 2 | 36 | 15 | 9 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 6 | 6 | 13 | 5 | 11 | 6 |
Swell 3 Height (m) Direction Period (s) | N 8 | N 8 | N 8 | W 9 | W 9 | W 9 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | W 14 | NW 14 | NW 14 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 |
| kJ | 1 | 1 | 1 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 7 | 7 | 2 | 2 | 2 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | ENE 5 | ENE 6 | ENE 6 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 |
| kJ | 100 | 217 | 201 | 205 | 184 | 200 | 239 | 283 | 368 | 454 | 432 | 450 | 537 | 550 | 548 | 503 | 548 | 582 | 493 | 339 | 382 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 68 | 27 | 59 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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