Surf Forecasts:
How big are the waves at Kahalu'u Beach Park today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 3ft (0.9m), 16s period with S swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 3ft (0.9m), 15s period with S swell.
- Evening surf: Evening surf (20 Jul, local time) - 3ft (0.9m), 15s period with S swell.
The current surf forecast for Kahalu'u Beach Park at 9AM is: 0.9m 16s primary swell from a South direction and 0.3m 12s secondary swell from a West-northwest direction (forecast issued at 01:00am July 20). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 3ft (0.9m) | 16s |
| Afternoon (20 Jul) | 3ft (0.9m) | 15s |
| Evening (20 Jul) | 3ft (0.9m) | 15s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 28°C on Mon morning, min 25°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 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) | S 16 | S 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | SSW 25 | SSW 24 | SSW 24 | SSW 24 | SSW 23 | SSW 22 | SSW 22 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 139 | 193 | 412 | 407 | 391 | 353 | 343 | 343 | 339 | 411 | 399 | 315 | 307 | 236 | 229 | 272 | 339 | 350 | 444 | 437 | 433 | 550 | 494 | 616 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | glassy | cross-on | cross-on | cross | cross-on | cross | cross | glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-off | glassy | cross-on | on | cross | cross | cross-on |
High Tide | 9:18AM0.55m | 7:44PM0.48m | 10:31AM0.59m | 8:10PM0.40m | 11:40AM0.63m | 9:03PM0.33m | ||||||||||||||||||
Low Tide | 2:13AM0.11m | 2:57PM0.37m | 2:47AM0.13m | 5:17PM0.38m | 3:28AM0.14m | 8:05PM0.33m | ||||||||||||||||||
 |  |  | | | | | | | | | | | | | | | |  | |  | | | | |
 | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:04 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — |
Temp °C | 26 | 26 | 27 | 28 | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 26 | 25 |
Feels °C | 28 | 29 | 30 | 30 | 30 | 30 | 30 | 28 | 27 | 29 | 28 | 28 | 28 | 29 | 28 | 29 | 30 | 29 | 29 | 29 | 28 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | S 16 | S 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 11 | S 11 | SSW 11 | S 13 | S 13 | SSW 22 | SSW 22 |
| kJ | 139 | 193 | 412 | 407 | 391 | 353 | 343 | 343 | 339 | 411 | 399 | 315 | 307 | 236 | 229 | 272 | 339 | 85 | 83 | 117 | 263 | 206 | 494 | 616 |
Swell 2 Height (m) Direction Period (s) | SW 11 | SSW 11 | WNW 12 | WNW 12 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 17 | SW 17 | SW 17 | SSW 12 | SSW 11 | SSW 26 | SSW 26 | S 13 | SSW 24 | SSW 24 | SSW 24 | SSW 23 | S 12 | S 12 |
| kJ | 57 | 47 | 28 | 27 | 50 | 50 | 47 | 70 | 69 | 69 | 72 | 74 | 72 | 46 | 43 | 224 | 222 | 125 | 444 | 437 | 433 | 550 | 196 | 141 |
Swell 3 Height (m) Direction Period (s) | S 14 | S 14 | SW 18 | SW 18 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | SW 16 | NW 11 | WNW 11 | WNW 11 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 25 | S 13 | S 13 | SW 18 | SSW 18 | SW 18 | SW 17 |
| kJ | 57 | 61 | 53 | 51 | 26 | 26 | 27 | 27 | 26 | 69 | 31 | 12 | 12 | 67 | 63 | 61 | 61 | 350 | 125 | 86 | 78 | 121 | 78 | 77 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NW 2 | NW 11 | — | — | — | — | — | — | NW 11 | NW 3 | — | — | — | NW 10 | NNW 10 | — |
| kJ | — | — | — | — | — | — | — | — | 1 | 45 | — | — | — | — | — | — | 18 | 4 | — | — | — | 16 | 10 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 0 | 0 | 123 | 123 | 13 | 13 | 6 | 6 | 0 | 11 | 94 | 138 | 125 | 125 | 94 | 0 | 0 | 0 | 52 | 125 | 1 | 1 | 94 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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