Surf Forecasts:
How big are the waves at Kahalu'u Beach Park today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 1.5ft (0.5m), 12s period with W swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 1.5ft (0.4m), 16s period with SW swell.
- Evening surf: Evening surf (19 Aug, local time) - 1.5ft (0.4m), 16s period with SW swell.
The current surf forecast for Kahalu'u Beach Park at 11AM is: 0.5m 12s primary swell from a West direction and 0.5m 12s secondary swell from a South direction (forecast issued at 07:00am August 19). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 1.5ft (0.5m) | 12s |
| Afternoon (19 Aug) | 1.5ft (0.4m) | 16s |
| Evening (19 Aug) | 1.5ft (0.4m) | 16s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Fri afternoon. Warm (max 28°C on Wed morning, min 26°C on Wed night). Wind will be generally light. | |||||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||||||||
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) | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 17 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 | SSW 17 | SW 17 | SSW 17 | SW 16 | SW 16 | SW 16 | SSW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 75 | 73 | 73 | 94 | 71 | 66 | 67 | 68 | 106 | 152 | 150 | 154 | 143 | 135 | 133 | 188 | 298 | 186 | 127 | 124 | 122 | 171 | 261 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | on | on | glassy | glassy | cross | glassy | glassy | glassy | on | on | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | cross-on | cross | cross-off | cross |
High Tide | 9:26AM0.60m | 10:49AM0.62m | 12:03PM0.64m | ||||||||||||||||||||
Low Tide | 2:06AM0.16m | 3:13AM0.18m | 8:42PM0.25m | ||||||||||||||||||||
 |  |  | | |  | | |  | | | | | | | | | | | |  |  | | |
 | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | 6:49 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:46 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — |
Temp °C | 26 | 27 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 |
Feels °C | 30 | 31 | 31 | 32 | 32 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 31 | 32 | 30 | 30 | 30 | 29 | 30 | 29 | 31 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | W 12 | S 12 | S 12 | S 12 | S 12 | SW 16 | SW 17 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 | SSW 17 | SW 17 | SSW 17 | SW 16 | W 10 | SW 16 | SSW 16 | SW 16 |
| kJ | 44 | 69 | 73 | 71 | 71 | 45 | 45 | 68 | 106 | 152 | 150 | 154 | 143 | 135 | 133 | 188 | 298 | 186 | 127 | 51 | 122 | 171 | 261 |
Swell 2 Height (m) Direction Period (s) | WNW 12 | W 12 | S 12 | SW 16 | WNW 12 | SW 16 | SW 16 | S 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | SW 16 | W 10 | W 10 | W 10 |
| kJ | 49 | 73 | 71 | 94 | 48 | 66 | 67 | 44 | 40 | 40 | 40 | 23 | 40 | 61 | 61 | 56 | 52 | 51 | 52 | 124 | 51 | 53 | 54 |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 16 | SW 16 | WNW 12 | SW 16 | WNW 12 | WNW 12 | WNW 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 13 | S 13 | S 13 |
| kJ | 75 | 66 | 67 | 48 | 65 | 47 | 46 | 25 | 41 | 21 | 21 | 21 | 21 | 38 | 21 | 21 | 37 | 37 | 37 | 21 | 55 | 85 | 54 |
Wind waves Height (m) Direction Period (s) | NNW 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 9 |
| kJ | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 12 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 0 | 52 | 55 | 0 | 0 | 1 | 0 | 0 | 0 | 55 | 55 | 0 | 0 | 0 | 0 | 0 | 25 | 55 | 52 | 13 | 0 | 4 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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