Surf Forecasts:
How big are the waves at Keaulanas today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 2ft (0.6m), 16s period with S swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 2.5ft (0.8m), 16s period with S swell.
- Evening surf: Evening surf (20 Jul, local time) - 2ft (0.6m), 16s period with S swell.
The current surf forecast for Keaulanas at 2AM is: 0.5m 18s primary swell from a South direction and 0.5m 11s secondary swell from a South-southwest direction (forecast issued at 07:00pm July 19). An open ocean swell of 0.9m 6s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 2ft (0.6m) | 16s |
| Afternoon (20 Jul) | 2.5ft (0.8m) | 16s |
| Evening (20 Jul) | 2ft (0.6m) | 16s |
Table - waves today at Keaulanas. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Tue morning. Warm (max 28°C on Mon afternoon, min 24°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Sun 19 | Monday 20 | Tuesday 21 | |||||||||||||||||
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 13 | S 13 | SW 19 | S 18 | SW 19 | S 16 | S 16 | S 16 | S 16 | S 16 | S 15 | S 13 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 126 | 126 | 92 | 154 | 91 | 198 | 193 | 329 | 325 | 181 | 165 | 163 | 339 | 267 | 329 | 325 | 302 | 289 | 281 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 7:08PM0.48m | 9:44AM0.47m | 7:23PM0.40m | 10:58AM0.52m | |||||||||||||||
Low Tide | 2:19AM0.10m | 3:17PM0.35m | 2:50AM0.11m | ||||||||||||||||
 |  | | | | |  |  | | | |  | |  | | | | | | |
 | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | — |
Temp °C | 27 | 25 | 25 | 25 | 24 | 25 | 27 | 28 | 27 | 25 | 25 | 25 | 24 | 25 | 27 | 27 | 27 | 25 | 25 |
Feels °C | 25 | 25 | 25 | 26 | 25 | 26 | 28 | 28 | 26 | 25 | 26 | 26 | 25 | 25 | 28 | 27 | 26 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | SSW 11 | SSW 11 | S 17 | NE 7 | S 12 | S 16 | S 16 | S 13 | S 15 | S 13 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 |
| kJ | 126 | 126 | 74 | 71 | 154 | 69 | 99 | 329 | 325 | 119 | 165 | 163 | 339 | 267 | 329 | 325 | 302 | 289 | 281 |
Swell 2 Height (m) Direction Period (s) | S 19 | S 18 | SSE 18 | S 18 | SSW 12 | S 16 | S 16 | SW 18 | SW 18 | S 16 | S 13 | S 15 | SSW 16 | SSW 17 | NE 7 | NE 7 | SSW 16 | SSW 16 | SSW 15 |
| kJ | 110 | 102 | 106 | 154 | 53 | 198 | 193 | 82 | 80 | 181 | 85 | 163 | 105 | 108 | 54 | 54 | 103 | 97 | 93 |
Swell 3 Height (m) Direction Period (s) | SE 5 | SE 5 | SW 19 | SW 19 | SW 19 | SSW 11 | SW 18 | W 12 | W 12 | SW 18 | SW 17 | SSW 16 | W 11 | SSW 11 | SW 17 | SW 17 | SSE 4 | SSW 26 | SSW 26 |
| kJ | 7 | 7 | 92 | 92 | 91 | 70 | 83 | 11 | 11 | 78 | 70 | 105 | 9 | 23 | 73 | 71 | 2 | 133 | 224 |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 6 | NE 6 | NE 6 | NE 7 | — | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | E 7 | — | NE 7 | NE 7 | NE 7 |
| kJ | 66 | 64 | 62 | 59 | 67 | — | 73 | 86 | 109 | 91 | 75 | 75 | 63 | 63 | 113 | — | 55 | 75 | 65 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 162 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 2 | 2 | 2 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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