Surf Forecasts:
How big are the waves at Kahalu'u Beach Park today (10 Aug):
- Morning surf: Morning surf (10 Aug, local time) - 2ft (0.6m), 15s period with SSW swell.
- Afternoon surf: Afternoon surf (10 Aug, local time) - 2.5ft (0.8m), 15s period with SSW swell.
- Evening surf: Evening surf (10 Aug, local time) - 2ft (0.6m), 16s period with SSW swell.
The current surf forecast for Kahalu'u Beach Park at 3AM is: 0.6m 16s primary swell from a South direction and 0.5m 12s secondary swell from a South-southwest direction (forecast issued at 07:00pm August 09). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Aug) | 2ft (0.6m) | 15s |
| Afternoon (10 Aug) | 2.5ft (0.8m) | 15s |
| Evening (10 Aug) | 2ft (0.6m) | 16s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 15mm), heaviest on Mon afternoon. Warm (max 28°C on Mon morning, min 25°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | |||||||||||||||||
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 | SSW 16 | SSW 16 | S 16 | S 16 | S 15 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 135 | 198 | 198 | 186 | 181 | 168 | 314 | 322 | 240 | 191 | 188 | 231 | 169 | 280 | 276 | 269 | 265 | 322 | 308 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | glassy | cross-on | cross-on | cross-on | on | cross-on | glassy | cross-on | cross-on | glassy | cross-off | cross-off | cross-on | cross-on | cross | cross-off | cross-off |
High Tide | 1:49AM0.32m | 2:40PM0.90m | 2:41AM0.37m | 3:21PM0.90m | |||||||||||||||
Low Tide | 9:17PM0.15m | 7:14AM0.03m | 9:48PM0.11m | 8:09AM0.02m | 10:17PM0.09m | ||||||||||||||
 |  |  |  | |  | |  | | | | | | | | | | | | |
 | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | 6:55 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:53 | — | — |
mm | 2 | 2 | — | 1 | — | — | — | 1 | 3 | 3 | — | 1 | — | — | — | — | 1 | 1 | 1 |
Temp °C | 27 | 27 | 27 | 27 | 26 | 27 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 27 | 28 | 27 | 27 | 26 | 26 |
Feels °C | 32 | 31 | 31 | 31 | 30 | 31 | 31 | 32 | 31 | 31 | 31 | 30 | 29 | 30 | 30 | 30 | 31 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | S 16 | SSW 16 | SSW 16 | S 16 | S 16 | S 15 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 135 | 198 | 198 | 186 | 181 | 168 | 314 | 322 | 240 | 191 | 188 | 231 | 169 | 280 | 276 | 269 | 265 | 322 | 308 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | WNW 11 | W 11 | SSW 11 | S 11 | S 11 | SSW 11 | S 11 | W 10 | W 10 | SSW 21 | SSW 20 | S 20 | S 20 |
| kJ | 85 | 57 | 83 | 82 | 82 | 85 | 39 | 36 | 42 | 63 | 63 | 70 | 65 | 18 | 17 | 85 | 132 | 194 | 276 |
Swell 3 Height (m) Direction Period (s) | W 12 | W 12 | W 12 | WNW 12 | WNW 11 | WNW 11 | S 9 | — | W 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | S 9 | S 21 | S 9 | W 10 | W 12 | W 12 |
| kJ | 25 | 24 | 23 | 45 | 43 | 40 | 15 | — | 36 | 37 | 36 | 35 | 20 | 6 | 79 | 6 | 17 | 42 | 42 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 9 | SSW 9 | — | — | — | — | — | — | W 10 | — | — | — |
| kJ | — | — | — | — | — | — | — | 16 | 16 | — | — | — | — | — | — | 31 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 1 | 0 | 6 | 6 | 2 | 125 | 138 | 0 | 125 | 13 | 0 | 0 | 0 | 99 | 99 | 13 | 0 | 0 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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