Surf Forecasts:
How big are the waves at Keaulanas today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 2.5ft (0.8m), 13s period with S swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 2.5ft (0.7m), 13s period with S swell.
- Evening surf: Evening surf (18 Aug, local time) - 2.5ft (0.7m), 13s period with S swell.
The current surf forecast for Keaulanas at 9PM is: 0.7m 13s primary swell from a South direction and 0.4m 18s secondary swell from a Southwest direction (forecast issued at 01:00pm August 18). An open ocean swell of 0.6m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 2.5ft (0.8m) | 13s |
| Afternoon (18 Aug) | 2.5ft (0.7m) | 13s |
| Evening (18 Aug) | 2.5ft (0.7m) | 13s |
Table - waves today at Keaulanas. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Tue afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||
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 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | SW 16 | SW 16 | SSW 16 | SSW 16 | SW 16 | SSW 16 | SSW 17 | SSW 18 | SW 18 | SW 18 | SSW 17 | SSW 17 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 215 | 165 | 162 | 162 | 162 | 155 | 103 | 103 | 129 | 130 | 100 | 103 | 127 | 175 | 195 | 207 | 249 | 316 | 200 | 243 | 271 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | off | cross-off | off | off | off | glassy | glassy | glassy | glassy | glassy |
High Tide | 8:37AM0.52m | 5:51PM0.34m | 9:54AM0.53m | 11:13AM0.55m | |||||||||||||||||
Low Tide | 3:34PM0.33m | 1:22AM0.12m | 2:02AM0.13m | ||||||||||||||||||
 | | |  |  | | | | | | | | | | |  | | | | | | |
 | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | 7:00 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 27 | 25 | 25 | 24 | 24 | 24 | 26 | 27 | 26 | 26 | 25 | 25 | 25 | 25 | 27 | 27 | 27 | 26 | 26 |
Feels °C | 27 | 28 | 26 | 25 | 26 | 25 | 25 | 25 | 28 | 30 | 28 | 28 | 27 | 27 | 27 | 27 | 30 | 31 | 31 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | NE 7 | NE 7 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NE 6 | SW 18 | SW 18 | SSW 17 | SSW 17 | SW 16 |
| kJ | 215 | 165 | 162 | 162 | 162 | 155 | 37 | 37 | 28 | 26 | 26 | 25 | 25 | 25 | 26 | 33 | 249 | 316 | 200 | 243 | 271 |
Swell 2 Height (m) Direction Period (s) | NE 6 | NE 6 | SSW 18 | SSW 18 | SW 18 | NE 5 | S 12 | S 12 | S 12 | SW 16 | S 12 | S 12 | S 12 | SSW 16 | SSW 17 | SSW 18 | NNE 6 | NNE 6 | NNE 7 | NNE 7 | NNE 7 |
| kJ | 28 | 27 | 123 | 123 | 80 | 23 | 103 | 103 | 103 | 130 | 69 | 71 | 71 | 175 | 195 | 207 | 26 | 28 | 30 | 31 | 32 |
Swell 3 Height (m) Direction Period (s) | SSW 17 | SSW 18 | WNW 13 | WNW 12 | WNW 12 | SW 18 | WNW 12 | SSW 16 | SW 16 | S 12 | SSW 16 | SSW 16 | SW 16 | S 12 | S 12 | SSE 11 | S 11 | S 11 | S 11 | S 11 | SSE 11 |
| kJ | 115 | 120 | 34 | 30 | 28 | 79 | 28 | 103 | 129 | 69 | 100 | 103 | 127 | 71 | 44 | 43 | 39 | 39 | 39 | 39 | 41 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | NE 6 | NE 5 | NE 6 | ENE 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 109 | 112 | 25 | 17 | 25 | 118 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 2 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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