Surf Forecasts:
How big are the waves at Kahalu'u Beach Park today (13 Aug):
- Morning surf: Morning surf (13 Aug, local time) - 3.5ft (1.1m), 16s period with S swell.
- Afternoon surf: Afternoon surf (13 Aug, local time) - 3.5ft (1.1m), 15s period with S swell.
- Evening surf: Evening surf (13 Aug, local time) - 4ft (1.2m), 15s period with S swell.
The current surf forecast for Kahalu'u Beach Park at 12PM is: 1.1m 15s primary swell from a South direction and 0.7m 12s secondary swell from a South-southwest direction (forecast issued at 07:00am August 13). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Aug) | 3.5ft (1.1m) | 16s |
| Afternoon (13 Aug) | 3.5ft (1.1m) | 15s |
| Evening (13 Aug) | 4ft (1.2m) | 15s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Sat morning. Warm (max 28°C on Thu morning, min 25°C on Sat morning). Wind will be generally light. | |||||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||||||||
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 15 | S 15 | S 15 | SSW 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 13 | SSW 13 | SSW 13 | S 14 | S 14 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 627 | 612 | 581 | 559 | 644 | 657 | 627 | 619 | 515 | 508 | 508 | 423 | 417 | 405 | 308 | 299 | 299 | 295 | 284 | 295 | 236 | 179 | 189 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | on | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | on | glassy | glassy | glassy | glassy | glassy | cross-off | cross-off | glassy | on | cross | cross | glassy |
High Tide | 4:13AM0.48m | 4:32PM0.83m | 4:57AM0.53m | 5:04PM0.75m | 5:42AM0.57m | 5:33PM0.67m | |||||||||||||||||
Low Tide | 9:48AM0.06m | 11:13PM0.07m | 10:35AM0.11m | 11:39PM0.07m | 11:24AM0.17m | ||||||||||||||||||
 |  | | | | | | | | | | | | | | |  |  | |  | |  |  | |
 | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 5 | 2 | — | — | — | 1 |
Temp °C | 26 | 26 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 27 | 28 | 27 | 27 | 27 | 28 | 27 | 26 | 25 | 26 | 28 | 28 | 28 | 27 |
Feels °C | 30 | 29 | 31 | 31 | 32 | 31 | 31 | 30 | 29 | 30 | 31 | 30 | 31 | 31 | 32 | 30 | 29 | 28 | 30 | 31 | 31 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | S 16 | S 16 | S 15 | S 15 | S 15 | SSW 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 13 | SSW 13 | SSW 13 | S 14 | S 14 |
| kJ | 627 | 612 | 581 | 559 | 644 | 657 | 627 | 619 | 515 | 508 | 508 | 423 | 417 | 405 | 308 | 299 | 299 | 295 | 284 | 295 | 236 | 179 | 189 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 12 | SSW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 12 | WNW 12 | WNW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | WNW 11 | S 18 | S 18 |
| kJ | 109 | 109 | 111 | 152 | 27 | 27 | 28 | 28 | 26 | 25 | 25 | 26 | 27 | 27 | 35 | 35 | 33 | 31 | 31 | 31 | 41 | 56 | 56 |
Swell 3 Height (m) Direction Period (s) | WNW 12 | WNW 12 | WNW 12 | WNW 12 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SSW 17 | SW 17 | SW 17 | SW 18 | S 20 | S 19 | W 14 | S 18 | W 11 | WNW 13 |
| kJ | 28 | 28 | 28 | 28 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 30 | 12 | 12 | 12 | 30 | 30 | 16 | 56 | 22 | 34 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 9 | SE 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 338 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 0 | 11 | 125 | 0 | 0 | 0 | 0 | 0 | 0 | 77 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 138 | 1 | 2 | 0 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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