Surf Forecasts:
How big are the waves at Kahalu'u Beach Park today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 3ft (0.9m), 17s period with SW swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 2.5ft (0.7m), 17s period with SW swell.
- Evening surf: Evening surf (18 Sep, local time) - 2.5ft (0.7m), 17s period with SW swell.
The current surf forecast for Kahalu'u Beach Park at 3AM is: 0.9m 17s primary swell from a South-southwest direction and 0.3m 18s secondary swell from a South-southwest direction, 0.5m 8s secondary swell from a West direction (forecast issued at 07:00pm September 17). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 3ft (0.9m) | 17s |
| Afternoon (18 Sep) | 2.5ft (0.7m) | 17s |
| Evening (18 Sep) | 2.5ft (0.7m) | 17s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Thu night. Warm (max 28°C on Thu night, min 26°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | |||||||||||||||||
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 16 | SW 16 | SW 17 | SSW 17 | SSW 17 | SSW 16 | SW 17 | SW 17 | SW 17 | SW 17 | SSW 16 | SSW 15 | SSW 15 | SW 16 | S 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 261 | 198 | 305 | 528 | 321 | 464 | 305 | 238 | 298 | 284 | 362 | 270 | 256 | 206 | 225 | 307 | 371 | 223 | 346 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross | cross-on | cross-off | cross-on | cross-on | cross-off | cross-off | cross | cross | glassy | cross | cross-on | cross-on | cross | glassy | cross-on |
High Tide | 9:47AM0.61m | 11:11AM0.62m | |||||||||||||||||
Low Tide | 00:49AM0.18m | 1:59AM0.21m | 7:45PM0.22m | ||||||||||||||||
 |  |  | | |  | | | | |  | | | | |  | |  | | |
 | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | 6:23 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — |
mm | 3 | 2 | — | — | — | — | — | 1 | 1 | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 |
Feels °C | 32 | 30 | 33 | 29 | 31 | 30 | 30 | 30 | 32 | 30 | 30 | 29 | 29 | 29 | 30 | 30 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 17 | SSW 17 | SSW 17 | SSW 16 | SW 17 | SW 17 | SW 17 | SW 17 | SSW 16 | SSW 15 | SSW 15 | SW 16 | S 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
| kJ | 261 | 198 | 305 | 528 | 321 | 464 | 305 | 238 | 298 | 284 | 362 | 270 | 256 | 206 | 225 | 307 | 371 | 223 | 346 |
Swell 2 Height (m) Direction Period (s) | S 18 | SSW 18 | SSW 18 | SSW 18 | SW 18 | SW 18 | S 16 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SSW 15 | SW 16 | SW 16 | SW 16 | S 16 | SW 16 |
| kJ | 169 | 184 | 195 | 61 | 154 | 80 | 137 | 211 | 211 | 208 | 132 | 129 | 125 | 128 | 124 | 122 | 122 | 193 | 85 |
Swell 3 Height (m) Direction Period (s) | W 8 | SW 19 | SW 8 | SSE 5 | WNW 8 | SE 4 | SW 9 | S 4 | S 4 | S 11 | SW 9 | SSW 4 | S 4 | SSW 18 | SSW 15 | SSE 4 | S 4 | S 14 | SSW 13 |
| kJ | 22 | 59 | 25 | 2 | 24 | 1 | 29 | 3 | 4 | 2 | 21 | 3 | 1 | 107 | 86 | 3 | 3 | 100 | 35 |
Wind waves Height (m) Direction Period (s) | NNW 3 | SW 8 | — | W 8 | — | — | — | NW 3 | NW 4 | W 9 | — | NW 9 | NW 3 | — | WSW 9 | W 3 | WNW 3 | NNW 4 | SW 3 |
| kJ | 2 | 25 | — | 36 | — | — | — | 3 | 6 | 25 | — | 13 | 2 | — | 15 | 2 | 8 | 5 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 49 | 6 | 0 | 52 | 49 | 0 | 0 | 2 | 52 | 0 | 1 | 125 | 52 | 1 | 0 | 6 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kahalu'u Beach Park surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest