Surf Forecasts:
How big are the waves at Kahalu'u Beach Park today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 1.5ft (0.4m), 18s period with SSW swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 1.5ft (0.4m), 18s period with SSW swell.
- Evening surf: Evening surf (31 Aug, local time) - 2ft (0.6m), 19s period with S swell.
The current surf forecast for Kahalu'u Beach Park at 1AM is: 0.6m 11s primary swell from a South direction and 0.4m 15s secondary swell from a Southwest direction, 0.3m 8s secondary swell from a Southwest direction (forecast issued at 07:00pm August 30). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 1.5ft (0.4m) | 18s |
| Afternoon (31 Aug) | 1.5ft (0.4m) | 18s |
| Evening (31 Aug) | 2ft (0.6m) | 19s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Tue morning, min 26°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | |||||||||||||||||
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 11 | S 11 | S 11 | S 11 | SW 15 | SSW 18 | SSW 18 | SSW 18 | S 19 | S 19 | S 19 | S 19 | SSW 18 | SSW 18 | SSW 18 | S 18 | S 18 | S 17 | S 17 |
Wave Graph  | |||||||||||||||||||
 kJ | 89 | 89 | 88 | 84 | 115 | 108 | 108 | 112 | 188 | 273 | 190 | 267 | 340 | 329 | 528 | 311 | 311 | 487 | 562 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | glassy | cross-off | cross | on | on | cross-on | glassy | cross-off | glassy | glassy | glassy | on | cross-on | cross | on | cross-on |
High Tide | 5:00PM0.63m | 5:54AM0.65m | 5:27PM0.55m | 6:42AM0.67m | 5:54PM0.47m | ||||||||||||||
Low Tide | 11:22PM0.07m | 11:55AM0.23m | 11:48PM0.07m | 12:57PM0.28m | |||||||||||||||
 |  | | | |  | | |  | | | | | | | | |  | | |
 | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | 6:39 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:38 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 28 | 28 | 27 | 27 | 27 |
Feels °C | 30 | 29 | 29 | 30 | 29 | 29 | 30 | 30 | 31 | 30 | 29 | 30 | 30 | 30 | 31 | 31 | 30 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 19 | S 19 | S 19 | S 19 | SSW 18 | SSW 18 | SSW 18 | S 18 | S 18 | S 17 | S 17 |
| kJ | 88 | 89 | 86 | 84 | 85 | 83 | 82 | 57 | 188 | 273 | 190 | 267 | 340 | 329 | 528 | 311 | 311 | 487 | 562 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SW 15 | SSW 15 | SW 15 | SW 15 | SSW 15 | SSW 15 | SSW 18 | S 10 | S 10 | SSW 10 | SSW 10 | S 14 | S 14 | SW 14 | S 13 | S 12 | SW 14 | WNW 11 |
| kJ | 89 | 57 | 88 | 77 | 115 | 89 | 88 | 112 | 53 | 53 | 57 | 38 | 94 | 96 | 32 | 51 | 48 | 32 | 25 |
Swell 3 Height (m) Direction Period (s) | SSW 20 | SSW 16 | SSW 19 | SSW 16 | SSW 18 | SSW 18 | SSW 18 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 14 | SW 14 | WNW 12 | SW 14 | SW 14 | WNW 11 | — |
| kJ | 75 | 48 | 73 | 83 | 66 | 108 | 108 | 54 | 51 | 49 | 49 | 61 | 32 | 32 | 14 | 52 | 32 | 12 | — |
Wind waves Height (m) Direction Period (s) | — | — | NW 8 | SW 8 | NW 3 | — | — | SW 2 | SSW 3 | — | — | NW 3 | WNW 3 | — | SW 8 | SW 8 | WSW 8 | WSW 7 | WSW 7 |
| kJ | — | — | 2 | 10 | 2 | — | — | 2 | 4 | — | — | 2 | 2 | — | 9 | 14 | 11 | 11 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 138 | 95 | 14 | 0 | 0 | 1 | 25 | 25 | 11 | 0 | 0 | 0 | 0 | 0 | 11 | 11 | 25 | 25 | 6 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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