Surf Forecasts:
How big are the waves at Kahalu'u Beach Park today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 2.5ft (0.8m), 14s period with S swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 2.5ft (0.8m), 14s period with S swell.
- Evening surf: Evening surf (17 Aug, local time) - 2.5ft (0.8m), 14s period with S swell.
The current surf forecast for Kahalu'u Beach Park at 4AM is: 0.9m 14s primary swell from a South direction and 0.5m 5s secondary swell from a Southwest direction (forecast issued at 01:00am August 17). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 2.5ft (0.8m) | 14s |
| Afternoon (17 Aug) | 2.5ft (0.8m) | 14s |
| Evening (17 Aug) | 2.5ft (0.8m) | 14s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Warm (max 28°C on Mon morning, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||||||||||
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 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 343 | 338 | 264 | 261 | 257 | 253 | 243 | 176 | 171 | 123 | 117 | 121 | 125 | 125 | 121 | 83 | 55 | 75 | 69 | 71 | 71 | 71 | 66 | 67 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross | cross-on | on | on | glassy | cross | cross-on | glassy | cross-on | cross-on | cross-on | glassy | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | cross-on | glassy | cross-off | cross |
High Tide | 7:17AM0.61m | 6:21PM0.49m | 8:15AM0.61m | 6:36PM0.41m | 9:26AM0.60m | |||||||||||||||||||
Low Tide | 00:29AM0.10m | 1:15PM0.31m | 00:55AM0.11m | 2:40PM0.35m | 1:25AM0.14m | |||||||||||||||||||
 | |  | | | |  | | |  |  | | | | | | | | | | | | | | |
 | — | 6:03 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:49 | — | — |
mm | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 |
Feels °C | 30 | 31 | 30 | 31 | 32 | 31 | 32 | 32 | 29 | 30 | 30 | 29 | 30 | 32 | 29 | 29 | 30 | 29 | 29 | 30 | 30 | 31 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 |
| kJ | 343 | 338 | 264 | 261 | 257 | 253 | 243 | 176 | 171 | 123 | 117 | 121 | 125 | 125 | 121 | 83 | 44 | 69 | 69 | 71 | 71 | 71 | 45 | 45 |
Swell 2 Height (m) Direction Period (s) | SSW 5 | SW 5 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | S 3 | WNW 11 | SW 17 | SW 18 | SW 18 | WNW 11 | SW 18 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | SW 16 | WNW 12 | SW 16 | SW 16 |
| kJ | 17 | 11 | 42 | 42 | 42 | 42 | 42 | 42 | 25 | 3 | 24 | 75 | 78 | 80 | 25 | 49 | 55 | 49 | 48 | 48 | 68 | 48 | 66 | 67 |
Swell 3 Height (m) Direction Period (s) | WNW 12 | WNW 11 | SW 5 | SSW 18 | SW 4 | WSW 4 | SW 4 | SW 16 | W 6 | WNW 11 | SW 17 | WNW 11 | WNW 11 | WNW 11 | SW 18 | WNW 11 | SW 18 | SW 17 | SW 16 | SW 16 | WNW 12 | SW 16 | WNW 12 | WNW 12 |
| kJ | 46 | 43 | 5 | 31 | 3 | 2 | 3 | 10 | 3 | 24 | 70 | 24 | 24 | 24 | 49 | 24 | 48 | 75 | 66 | 67 | 48 | 65 | 47 | 46 |
Wind waves Height (m) Direction Period (s) | — | — | — | SW 4 | — | — | — | WSW 6 | S 3 | SE 4 | SE 4 | — | — | WNW 6 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 5 | — | — | — | 8 | 3 | 8 | 4 | — | — | 8 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 94 | 2 | 0 | 0 | 99 | 99 | 25 | 13 | 99 | 25 | 99 | 94 | 123 | 99 | 125 | 1 | 0 | 0 | 81 | 81 | 75 | 55 | 52 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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