Surf Forecasts:
How big are the waves at Hakalau today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 3.5ft (1.0m), 7s period with ENE swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 3ft (0.9m), 8s period with ESE swell.
- Evening surf: Evening surf (21 Aug, local time) - 4ft (1.2m), 8s period with ESE swell.
The current surf forecast for Hakalau at 2AM is: 0.8m 7s primary swell from a North-northeast direction and 0.6m 9s secondary swell from a Southeast direction, 0.6m 8s secondary swell from a East direction (forecast issued at 07:00pm August 20). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 3.5ft (1.0m) | 7s |
| Afternoon (21 Aug) | 3ft (0.9m) | 8s |
| Evening (21 Aug) | 4ft (1.2m) | 8s |
Table - waves today at Hakalau. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 16mm), heaviest on Sun afternoon. Warm (max 28°C on Fri morning, min 25°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 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) | NNE 7 | NE 7 | NE 7 | NNE 7 | SE 9 | ENE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 8 | ESE 8 | E 8 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 83 | 77 | 67 | 56 | 49 | 91 | 96 | 107 | 153 | 153 | 310 | 388 | 310 | 505 | 363 | 417 | 567 | 627 | 766 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:55AM0.77m | 12:41PM0.82m | |||||||||||||||||
Low Tide | 2:34AM0.27m | 4:18AM0.26m | 8:21PM0.39m | ||||||||||||||||
 |  | | | |  | | | | | | | | | |  |  |  | | |
 | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | 6:45 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:44 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 2 |
Temp °C | 27 | 27 | 26 | 26 | 26 | 27 | 28 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 27 | 27 | 26 | 26 | 26 |
Feels °C | 31 | 30 | 28 | 27 | 27 | 28 | 28 | 27 | 28 | 29 | 29 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NE 7 | NE 7 | NNE 7 | NE 7 | ENE 7 | NE 7 | NE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 |
| kJ | 83 | 77 | 67 | 56 | 46 | 91 | 57 | 36 | 153 | 153 | 176 | 206 | 310 | 346 | 363 | 417 | 567 | 627 | 627 |
Swell 2 Height (m) Direction Period (s) | E 7 | SE 9 | E 8 | SE 9 | SE 9 | SE 8 | SE 8 | N 7 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | SSE 15 | SSE 14 | SSE 14 |
| kJ | 35 | 50 | 34 | 49 | 49 | 35 | 44 | 24 | 34 | 36 | 54 | 73 | 52 | 61 | 61 | 63 | 21 | 41 | 40 |
Swell 3 Height (m) Direction Period (s) | SE 9 | E 8 | SE 9 | S 15 | E 8 | ESE 8 | S 16 | SE 9 | NNE 7 | NNE 7 | NNE 7 | S 14 | SSE 15 | SSE 15 | SSE 15 | SSE 15 | S 12 | W 11 | W 10 |
| kJ | 50 | 31 | 50 | 17 | 29 | 24 | 20 | 28 | 16 | 15 | 15 | 14 | 43 | 22 | 21 | 21 | 11 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | E 8 | ESE 4 | E 6 | ESE 8 | ESE 8 | — | — | E 8 | E 8 | NE 6 | E 8 | — | — | — | — | E 9 |
| kJ | — | — | — | 50 | 7 | 31 | 96 | 107 | — | — | 310 | 388 | 76 | 505 | — | — | — | — | 766 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 20 | 16 | 16 | 16 | 16 | 16 | 76 | 76 | 20 | 20 | 14 | 14 | 14 | 20 | 20 | 74 | 74 | 74 | 18 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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