Surf Forecasts:
How big are the waves at Waipio Valley today (21 Jul):
- Morning surf: Morning surf (21 Jul, local time) - 3.5ft (1.1m), 7s period with E swell.
- Afternoon surf: Afternoon surf (21 Jul, local time) - 5ft (1.6m), 7s period with E swell.
- Evening surf: Evening surf (21 Jul, local time) - 4.5ft (1.3m), 7s period with E swell.
The current surf forecast for Waipio Valley at 3AM is: 1.3m 7s primary swell from a East-northeast direction and 0.3m 12s secondary swell from a East direction, 0.3m 15s secondary swell from a East direction (forecast issued at 07:00pm July 20). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jul) | 3.5ft (1.1m) | 7s |
| Afternoon (21 Jul) | 5ft (1.6m) | 7s |
| Evening (21 Jul) | 4.5ft (1.3m) | 7s |
Table - waves today at Waipio Valley. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Warm (max 27°C on Tue morning, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||||
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 7 | E 7 | E 7 | ENE 7 | ENE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 | E 12 | ENE 7 | ENE 11 | ENE 12 | ENE 12 | E 12 | E 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 127 | 123 | 121 | 154 | 143 | 121 | 218 | 240 | 243 | 162 | 167 | 171 | 132 | 154 | 439 | 522 | 531 | 472 | 276 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 10:08AM0.64m | 6:37PM0.56m | 11:34AM0.70m | ||||||||||||||||
Low Tide | 2:08AM0.22m | 3:43PM0.54m | 2:59AM0.21m | ||||||||||||||||
 |  |  | | | | | |  | | | | |  | | | | | | |
 | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | 7:04 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | — | — | — | 7:02 | — | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 26 | 26 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 25 | 25 |
Feels °C | 27 | 28 | 27 | 28 | 27 | 27 | 28 | 27 | 27 | 26 | 26 | 26 | 24 | 25 | 26 | 25 | 26 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 7 | NE 7 | E 12 | E 12 | NE 7 | E 15 | E 14 | E 13 | E 13 | E 12 | E 12 | E 12 | E 11 | W 10 | N 12 | N 12 | NNE 7 | E 12 |
| kJ | 62 | 68 | 73 | 25 | 25 | 47 | 38 | 58 | 84 | 117 | 138 | 136 | 132 | 154 | 2 | 3 | 3 | 27 | 276 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 12 | E 12 | E 16 | E 15 | E 12 | W 11 | W 11 | W 11 | NNE 7 | NNE 7 | W 11 | NE 7 | W 10 | N 12 | W 10 | W 10 | N 11 | NNE 7 |
| kJ | 13 | 12 | 26 | 19 | 38 | 41 | 2 | 2 | 2 | 31 | 32 | 2 | 44 | 2 | 3 | 2 | 2 | 3 | 29 |
Swell 3 Height (m) Direction Period (s) | W 11 | W 12 | W 12 | W 12 | W 11 | E 15 | — | E 14 | E 11 | W 11 | W 11 | N 13 | W 11 | N 12 | S 16 | S 16 | S 16 | W 10 | N 11 |
| kJ | 10 | 10 | 11 | 11 | 10 | 38 | — | 57 | 20 | 2 | 2 | 3 | 2 | 3 | 5 | 5 | 5 | 2 | 10 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 7 | ENE 7 | ENE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 | E 7 | ENE 7 | ENE 11 | ENE 12 | ENE 12 | E 12 | E 4 |
| kJ | 127 | 123 | 121 | 154 | 143 | 121 | 218 | 240 | 243 | 162 | 167 | 171 | 120 | 154 | 439 | 522 | 531 | 472 | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 104 | 68 | 66 | 66 | 66 | 66 | 102 | 104 | 112 | 69 | 69 | 27 | 68 | 68 | 104 | 27 | 72 | 65 | 65 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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