Surf Forecasts:
How big are the waves at Kahuku Ranch today (21 Jun):
- Morning surf: Morning surf (21 Jun, local time) - 2ft (0.6m), 19s period with S swell.
- Afternoon surf: Afternoon surf (21 Jun, local time) - 2ft (0.6m), 19s period with S swell.
- Evening surf: Evening surf (21 Jun, local time) - 2.5ft (0.7m), 18s period with S swell.
The current surf forecast for Kahuku Ranch at 6AM is: 0.8m 14s primary swell from a South direction and 0.5m 20s secondary swell from a South direction (forecast issued at 01:00am June 21). An open ocean swell of 1.2m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jun) | 2ft (0.6m) | 19s |
| Afternoon (21 Jun) | 2ft (0.6m) | 19s |
| Evening (21 Jun) | 2.5ft (0.7m) | 18s |
Table - waves today at Kahuku Ranch. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 27°C on Tue morning, min 24°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 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) | S 14 | S 14 | S 20 | S 19 | S 19 | S 18 | S 18 | S 18 | S 18 | S 18 | S 16 | S 16 | S 16 | S 16 | S 16 | S 16 | SE 13 | SE 13 | SE 13 | SE 13 | S 15 | S 20 | S 19 | SSW 19 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 257 | 236 | 268 | 266 | 270 | 235 | 307 | 307 | 225 | 222 | 198 | 188 | 254 | 188 | 188 | 144 | 142 | 142 | 140 | 140 | 161 | 194 | 270 | 295 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 9:52AM0.59m | 8:59PM0.67m | 11:05AM0.66m | 9:51PM0.59m | 12:06PM0.73m | 10:51PM0.52m | ||||||||||||||||||
Low Tide | 3:18AM0.16m | 3:06PM0.39m | 4:01AM0.16m | 4:49PM0.42m | 4:43AM0.16m | 6:30PM0.41m | ||||||||||||||||||
 |  |  |  | | |  | | | | | | | | | | | | | | | | | | |
 | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:02 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 25 | 27 | 27 | 27 | 25 | 25 |
Feels °C | 24 | 25 | 25 | 26 | 25 | 24 | 24 | 23 | 24 | 23 | 24 | 25 | 24 | 24 | 23 | 24 | 23 | 24 | 24 | 26 | 26 | 27 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 18 | S 18 | S 18 | SE 14 | SE 14 | S 16 | S 16 | S 16 | SE 14 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | S 19 | SSW 19 |
| kJ | 257 | 236 | 225 | 171 | 168 | 168 | 307 | 307 | 225 | 169 | 164 | 188 | 254 | 188 | 149 | 144 | 142 | 142 | 140 | 140 | 138 | 138 | 270 | 295 |
Swell 2 Height (m) Direction Period (s) | SE 16 | S 20 | S 20 | S 19 | SE 15 | SE 15 | S 13 | S 13 | S 12 | S 18 | S 16 | SE 14 | SE 14 | SE 14 | S 16 | S 16 | S 12 | S 15 | S 11 | SSW 15 | S 15 | S 16 | SE 13 | SE 13 |
| kJ | 91 | 119 | 268 | 266 | 137 | 174 | 166 | 119 | 113 | 222 | 198 | 160 | 155 | 151 | 188 | 132 | 43 | 110 | 41 | 71 | 161 | 129 | 108 | 106 |
Swell 3 Height (m) Direction Period (s) | S 21 | SE 16 | SE 16 | SE 15 | S 19 | S 18 | SE 15 | SE 15 | SE 15 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 15 | S 12 | SSW 15 | S 11 | S 11 | S 20 | S 16 | S 16 |
| kJ | 79 | 91 | 89 | 141 | 270 | 235 | 174 | 136 | 134 | 103 | 71 | 69 | 69 | 69 | 69 | 44 | 74 | 42 | 71 | 39 | 37 | 194 | 129 | 131 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 6 | E 5 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 7 | E 5 | E 7 | E 7 | E 7 | E 7 |
| kJ | 148 | 126 | 126 | 107 | 107 | 110 | 112 | 99 | 127 | 137 | 156 | 141 | 124 | 95 | 104 | 125 | 92 | 71 | 106 | 51 | 106 | 88 | 108 | 205 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 81 | 108 | 108 | 0 | 203 | 75 | 62 | 62 | 77 | 81 | 112 | 112 | 112 | 200 | 75 | 108 | 57 | 0 | 62 | 112 | 112 | 110 | 62 | 108 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kahuku Ranch surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest