Surf Forecasts:
How big are the waves at Waipio Valley today (16 Aug):
- Afternoon surf: Afternoon surf (16 Aug, local time) - 16ft (5.0m), 10s period with E swell.
- Evening surf: Evening surf (16 Aug, local time) - 15ft (4.5m), 9s period with E swell.
The current surf forecast for Waipio Valley at 12AM is: 4.0m 9s primary swell from a East direction and 0.2m 13s secondary swell from a West direction, 0.1m 9s secondary swell from a Northwest direction (forecast issued at 07:00pm August 15). The wind direction is predicted to be cross-shore and the swell rating is 11.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Aug) | - | - |
| Afternoon (16 Aug) | 16ft (5.0m) | 10s |
| Evening (16 Aug) | 15ft (4.5m) | 9s |
Table - waves today at Waipio Valley. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 46mm), heaviest during Sat night. Warm (max 28°C on Sun morning, min 24°C on Mon night). Winds decreasing (near gales from the E on Sat night, light winds from the ENE by Tue morning). | |||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | |||||||||||||||||
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) | E 10 | E 10 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 4369 | 4192 | 2923 | 1739 | 1193 | 914 | 893 | 724 | 558 | 501 | 430 | 385 | 308 | 318 | 276 | 276 | 234 | 210 | 215 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 5:20AM0.67m | 4:59PM0.72m | 6:13AM0.67m | 5:15PM0.64m | |||||||||||||||
Low Tide | 11:09PM0.18m | 11:01AM0.32m | 11:37PM0.19m | 11:50AM0.41m | |||||||||||||||
 |  | |  | |  | | | | | |  | | |  | | | | | |
 | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | 6:51 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:49 | — | — |
mm | 14 | 14 | 11 | 8 | 2 | — | 1 | 4 | 3 | 2 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 |
Feels °C | 20 | 22 | 26 | 28 | 30 | 29 | 30 | 30 | 31 | 30 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | W 11 | W 11 | W 13 | W 13 | W 13 | W 13 | W 13 | W 12 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 |
| kJ | 10 | 10 | 13 | 13 | 14 | 13 | 13 | 12 | 26 | 25 | 11 | 11 | 23 | 10 | 10 | 10 | 10 | 10 | 10 |
Swell 2 Height (m) Direction Period (s) | W 14 | W 14 | NW 9 | N 10 | — | N 9 | N 9 | N 9 | N 9 | NW 8 | NNW 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 |
| kJ | 4 | 4 | 3 | 2 | — | 2 | 2 | 2 | 1 | 3 | 7 | 5 | 5 | 5 | 1 | 1 | 1 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | S 16 | — | — | NNW 8 | NNW 8 | N 8 | N 8 | SE 11 | SE 11 | SE 11 | SE 11 | E 11 | W 6 |
| kJ | — | — | — | — | — | — | 5 | — | — | 7 | 7 | 5 | 5 | 5 | 5 | 5 | 5 | 2 | 1 |
Wind waves Height (m) Direction Period (s) | E 10 | E 10 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 4369 | 4192 | 2923 | 1739 | 1193 | 914 | 893 | 724 | 558 | 501 | 430 | 385 | 308 | 318 | 276 | 276 | 234 | 210 | 215 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 68 | 59 | 476 | 59 | 59 | 34 | 34 | 34 | 27 | 34 | 68 | 68 | 68 | 71 | 104 | 59 | 59 | 59 | 59 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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