Surf Forecasts:
How big are the waves at Kahalu'u Beach Park today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 1ft (0.3m), 16s period with SW swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 1.5ft (0.4m), 15s period with SW swell.
- Evening surf: Evening surf (21 Oct, local time) - 1.5ft (0.4m), 15s period with SW swell.
The current surf forecast for Kahalu'u Beach Park at 9AM is: 0.3m 16s primary swell from a Southwest direction and 0.2m 12s secondary swell from a South direction, 0.2m 2s secondary swell from a West-northwest direction (forecast issued at 01:00am October 21). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 1ft (0.3m) | 16s |
| Afternoon (21 Oct) | 1.5ft (0.4m) | 15s |
| Evening (21 Oct) | 1.5ft (0.4m) | 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 morning. Warm (max 26°C on Wed morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | ||||||||||||||||||||||
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) | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | S 15 | SSW 15 | SSW 16 | S 16 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 39 | 39 | 39 | 37 | 56 | 54 | 54 | 33 | 33 | 54 | 53 | 51 | 49 | 71 | 46 | 45 | 53 | 57 | 43 | 57 | 115 | 184 | 196 | 137 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | on | on | cross-on | cross | on | cross-on | cross | glassy | cross-on | on | on | glassy | glassy | glassy | cross | cross | on | cross-on | glassy | cross-off | glassy |
High Tide | 1:02AM0.44m | 12:31PM0.62m | 1:33AM0.54m | 1:08PM0.61m | 2:05AM0.63m | 1:44PM0.58m | ||||||||||||||||||
Low Tide | 6:11AM0.25m | 7:16PM0.11m | 7:10AM0.23m | 7:37PM0.08m | 8:03AM0.20m | 7:59PM0.05m | ||||||||||||||||||
 |  |  | |  | | |  | | | |  | | | | | | | | | | | | | |
 | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — |
mm | 1 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 28 | 27 | 27 | 28 | 28 | 29 | 27 | 28 | 27 | 27 | 28 | 28 | 28 | 29 | 28 | 28 | 29 | 26 | 27 | 28 | 28 | 29 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | SSW 17 | SW 13 | SW 13 | S 15 | SSW 15 | SSW 16 | SSW 13 |
| kJ | 39 | 39 | 39 | 37 | 56 | 54 | 54 | 33 | 33 | 54 | 53 | 51 | 49 | 71 | 46 | 45 | 44 | 57 | 43 | 42 | 115 | 184 | 196 | 102 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 16 | S 12 | S 12 | S 12 | SSW 10 | SSW 10 | S 16 | S 11 | S 4 | S 11 | S 11 | S 11 | S 5 | S 16 | SSW 16 | SSW 16 | SW 13 | SSW 18 | SSW 17 | SW 13 | WNW 12 | NW 11 | S 16 |
| kJ | 13 | 20 | 12 | 12 | 11 | 9 | 10 | 19 | 9 | 1 | 9 | 9 | 21 | 2 | 21 | 27 | 53 | 44 | 31 | 57 | 26 | 13 | 19 | 137 |
Swell 3 Height (m) Direction Period (s) | S 16 | S 13 | S 4 | S 16 | S 16 | S 12 | S 11 | S 11 | S 16 | SSW 9 | S 4 | SW 9 | SW 9 | SW 9 | S 10 | S 10 | NW 11 | NW 12 | SSW 15 | SSW 14 | WNW 11 | SSW 12 | SSW 12 | NW 11 |
| kJ | 21 | 12 | 1 | 20 | 20 | 11 | 10 | 9 | 19 | 8 | 1 | 3 | 3 | 3 | 8 | 8 | 5 | 5 | 23 | 21 | 13 | 14 | 14 | 19 |
Wind waves Height (m) Direction Period (s) | NW 4 | — | WNW 2 | WNW 2 | WNW 3 | — | — | SSW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | 1 | 1 | 1 | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 14 | 25 | 99 | 99 | 13 | 13 | 94 | 25 | 6 | 0 | 94 | 99 | 99 | 0 | 0 | 0 | 2 | 1 | 75 | 75 | 0 | 0 | 0 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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