Surf Forecasts:
How big are the waves at Kahalu'u Beach Park today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 2ft (0.6m), 13s period with S swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 2ft (0.6m), 13s period with S swell.
- Evening surf: Evening surf (18 Aug, local time) - 2ft (0.6m), 13s period with S swell.
The current surf forecast for Kahalu'u Beach Park at 11AM is: 0.6m 13s primary swell from a South direction and 0.4m 17s secondary swell from a Southwest direction, 0.3m 6s secondary swell from a West direction (forecast issued at 07:00am August 18). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 2ft (0.6m) | 13s |
| Afternoon (18 Aug) | 2ft (0.6m) | 13s |
| Evening (18 Aug) | 2ft (0.6m) | 13s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Tue morning, min 26°C on Tue morning). Wind will be generally light. | |||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||||
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) | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | SW 18 | 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 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 119 | 117 | 117 | 125 | 125 | 121 | 83 | 55 | 75 | 69 | 73 | 71 | 71 | 66 | 67 | 68 | 106 | 152 | 150 | 154 | 143 | 133 | 133 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | on | on | on | glassy | cross-on | glassy | glassy | on | on | glassy | cross | cross | glassy | glassy | cross-on | on | cross-on | cross-on | glassy | cross |
High Tide | 8:15AM0.61m | 6:36PM0.41m | 9:26AM0.60m | 10:49AM0.62m | |||||||||||||||||||
Low Tide | 2:40PM0.35m | 1:25AM0.14m | 2:06AM0.16m | ||||||||||||||||||||
 |  | | | |  | | | |  | | | | | | |  | | | | | | | |
 | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:49 | — | — | — | — | — | — | — | 6:47 | — | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 26 |
Feels °C | 29 | 30 | 30 | 30 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 30 | 30 | 31 | 31 | 30 | 30 | 30 | 31 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | SW 16 | SW 17 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 |
| kJ | 119 | 117 | 117 | 125 | 125 | 121 | 83 | 44 | 69 | 69 | 71 | 71 | 71 | 45 | 45 | 68 | 106 | 152 | 150 | 154 | 143 | 133 | 133 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | WNW 11 | SW 17 | SW 18 | SW 18 | WNW 11 | WNW 11 | WNW 13 | WNW 12 | WNW 12 | W 12 | SW 16 | WNW 12 | SW 16 | SW 16 | S 12 | WNW 11 | S 11 | S 11 | S 11 | S 11 | WNW 11 | WNW 11 |
| kJ | 24 | 24 | 75 | 78 | 80 | 25 | 25 | 55 | 49 | 48 | 73 | 68 | 48 | 66 | 67 | 44 | 40 | 21 | 21 | 21 | 21 | 39 | 39 |
Swell 3 Height (m) Direction Period (s) | W 6 | SW 17 | WNW 11 | WNW 11 | WNW 11 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | WNW 12 | SW 16 | WNW 12 | WNW 12 | WNW 11 | S 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | S 11 | S 11 |
| kJ | 7 | 70 | 24 | 24 | 24 | 49 | 49 | 48 | 75 | 66 | 67 | 48 | 65 | 47 | 46 | 25 | 41 | 24 | 23 | 23 | 23 | 38 | 21 |
Wind waves Height (m) Direction Period (s) | — | — | W 6 | W 2 | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 7 | 1 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 13 | 0 | 125 | 99 | 99 | 25 | 0 | 13 | 0 | 0 | 75 | 75 | 0 | 1 | 1 | 0 | 0 | 2 | 55 | 55 | 13 | 0 | 1 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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