Surf Forecasts:
How big are the waves at Kahuku Ranch today (20 Jun):
- Morning surf: Morning surf (20 Jun, local time) - 2ft (0.6m), 16s period with S swell.
- Afternoon surf: Afternoon surf (20 Jun, local time) - 2ft (0.6m), 15s period with S swell.
- Evening surf: Evening surf (20 Jun, local time) - 2.5ft (0.7m), 15s period with S swell.
The current surf forecast for Kahuku Ranch at 8PM is: 0.6m 15s primary swell from a South direction and 0.6m 12s secondary swell from a South direction (forecast issued at 01:00pm June 20). An open ocean swell of 1.4m 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 (20 Jun) | 2ft (0.6m) | 16s |
| Afternoon (20 Jun) | 2ft (0.6m) | 15s |
| Evening (20 Jun) | 2.5ft (0.7m) | 15s |
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 Sat afternoon, min 24°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||||||
Sat 20 | Sunday 21 | Monday 22 | Tue 23 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | S 15 | S 15 | S 15 | S 15 | S 14 | 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 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 168 | 159 | 157 | 155 | 268 | 257 | 232 | 268 | 266 | 270 | 235 | 307 | 307 | 225 | 222 | 198 | 188 | 254 | 188 | 188 | 144 | 144 | 142 | 140 |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off |
High Tide | 8:33AM0.54m | 8:13PM0.77m | 9:52AM0.59m | 8:59PM0.67m | 11:05AM0.66m | 9:51PM0.59m | ||||||||||||||||||
Low Tide | 1:41PM0.31m | 3:18AM0.16m | 3:06PM0.39m | 4:01AM0.16m | 4:49PM0.42m | 4:43AM0.16m | ||||||||||||||||||
 |  | |  | | |  | |  | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — |
 | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | 7:02 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 25 |
Feels °C | 27 | 27 | 25 | 24 | 25 | 25 | 26 | 25 | 26 | 25 | 24 | 22 | 24 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 21 | 23 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 15 | S 15 | S 15 | S 14 | 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 |
| kJ | 99 | 159 | 157 | 155 | 268 | 257 | 232 | 225 | 171 | 168 | 168 | 307 | 307 | 225 | 169 | 164 | 188 | 254 | 188 | 149 | 144 | 144 | 142 | 140 |
Swell 2 Height (m) Direction Period (s) | S 15 | S 12 | S 12 | S 12 | SE 16 | 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 | SSW 15 |
| kJ | 168 | 99 | 101 | 97 | 91 | 91 | 119 | 268 | 266 | 137 | 174 | 166 | 119 | 112 | 222 | 198 | 160 | 153 | 151 | 188 | 132 | 43 | 110 | 71 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 16 | SE 16 | S 21 | 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 | S 11 |
| kJ | 19 | 18 | 93 | 91 | 81 | 79 | 91 | 89 | 141 | 270 | 235 | 174 | 136 | 134 | 103 | 71 | 69 | 69 | 69 | 69 | 44 | 74 | 42 | 41 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 5 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 |
| kJ | 173 | 168 | 163 | 168 | 150 | 145 | 126 | 124 | 126 | 107 | 110 | 110 | 92 | 123 | 132 | 137 | 137 | 126 | 106 | 116 | 125 | 148 | 108 | 74 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 198 | 200 | 200 | 200 | 200 | 108 | 108 | 82 | 0 | 200 | 200 | 62 | 112 | 81 | 81 | 81 | 112 | 112 | 200 | 200 | 112 | 81 | 0 | 0 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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