Surf Forecasts:
How big are the waves at Shacks today (20 Oct):
- Morning surf: Morning surf (20 Oct, local time) - 5ft (1.6m), 8s period with NE swell.
- Afternoon surf: Afternoon surf (20 Oct, local time) - 6ft (1.8m), 7s period with ENE swell.
- Evening surf: Evening surf (20 Oct, local time) - 6ft (1.8m), 8s period with ENE swell.
The current surf forecast for Shacks at 8AM is: 1.6m 7s primary swell from a Northeast direction and 0.9m 7s secondary swell from a East-southeast direction (forecast issued at 01:00am October 20). An open ocean swell of 0.5m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Oct) | 5ft (1.6m) | 8s |
| Afternoon (20 Oct) | 6ft (1.8m) | 7s |
| Evening (20 Oct) | 6ft (1.8m) | 8s |
Table - waves today at Shacks. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Tue morning. Warm (max 25°C on Tue morning, min 24°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||||||
Tuesday 20 | Wednesday 21 | Thursday 22 | ||||||||||||||||||||||
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) | NE 7 | NE 7 | NE 7 | NE 8 | NE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | E 7 | ENE 7 | NE 7 | ENE 7 | ENE 7 | ENE 8 | ESE 7 | E 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 194 | 209 | 285 | 292 | 340 | 428 | 373 | 373 | 368 | 331 | 331 | 368 | 358 | 310 | 198 | 336 | 320 | 234 | 156 | 138 | 164 | 86 | 81 | 131 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:45PM0.48m | 11:32AM0.79m | 00:25AM0.58m | 12:10PM0.81m | 00:58AM0.69m | 12:43PM0.81m | ||||||||||||||||||
Low Tide | 4:35AM0.35m | 6:32PM0.25m | 5:45AM0.32m | 6:50PM0.19m | 6:39AM0.29m | 7:10PM0.13m | ||||||||||||||||||
 | |  |  | |  |  |  | |  | |  | | | | | | | | | | | | | |
 | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:51 | — | — | — | — | — | — | — | 5:51 | — | — |
mm | 1 | 1 | — | 1 | 1 | — | — | — | — | — | — | 1 | 1 | — | — | — | 1 | — | — | — | — | — | 1 | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 24 | 23 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 24 | 24 | 23 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | ESE 7 | ESE 7 | ESE 8 | NNW 11 | NNW 10 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | NE 7 | NE 7 | NE 7 | ENE 7 | ENE 7 | ESE 7 | NNE 8 | E 7 |
| kJ | 138 | 142 | 97 | 97 | 60 | 38 | 37 | 373 | 368 | 331 | 331 | 368 | 358 | 310 | 198 | 191 | 199 | 156 | 156 | 138 | 164 | 86 | 112 | 131 |
Swell 2 Height (m) Direction Period (s) | N 11 | N 11 | N 11 | N 11 | N 11 | S 11 | S 12 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | N 10 | NNE 7 | NE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | ENE 8 | ESE 7 | NE 8 |
| kJ | 86 | 61 | 59 | 59 | 58 | 22 | 24 | 35 | 34 | 33 | 33 | 19 | 18 | 16 | 96 | 110 | 128 | 138 | 117 | 101 | 86 | 75 | 81 | 88 |
Swell 3 Height (m) Direction Period (s) | S 11 | S 15 | S 11 | S 11 | S 14 | S 14 | S 14 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | N 9 | N 9 | N 9 | E 13 | E 13 | E 13 | E 12 | NNE 7 | E 7 | E 13 |
| kJ | 22 | 70 | 21 | 21 | 36 | 15 | 15 | 29 | 28 | 27 | 26 | 25 | 25 | 24 | 15 | 15 | 15 | 30 | 55 | 55 | 26 | 64 | 54 | 80 |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | NE 8 | NE 7 | ENE 8 | ENE 8 | — | — | — | — | — | — | — | — | ENE 8 | E 7 | ENE 7 | — | — | E 7 | — | ENE 7 | — |
| kJ | 194 | 209 | 285 | 292 | 340 | 428 | 373 | — | — | — | — | — | — | — | — | 336 | 320 | 234 | — | — | 88 | — | 72 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 36 | 111 | 36 | 132 | 211 | 36 | 116 | 36 | 34 | 34 | 34 | 36 | 36 | 36 | 36 | 34 | 34 | 34 | 34 | 35 | 36 | 36 | 36 | 35 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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