Surf Forecasts:
How big are the waves at Keaulanas today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 3.5ft (1.1m), 17s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 3.5ft (1.1m), 17s period with SSW swell.
- Evening surf: Evening surf (18 Sep, local time) - 3.5ft (1.1m), 16s period with SSW swell.
The current surf forecast for Keaulanas at 11AM is: 1.1m 17s primary swell from a South-southwest direction (forecast issued at 07:00am September 18). An open ocean swell of 0.8m 7s is not directed at the surf break, a second open ocean swell of 0.7m 8s 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 Sep) | 3.5ft (1.1m) | 17s |
| Afternoon (18 Sep) | 3.5ft (1.1m) | 17s |
| Evening (18 Sep) | 3.5ft (1.1m) | 16s |
Table - waves today at Keaulanas. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Fri morning, min 25°C on Sat night). Mainly fresh winds. | |||||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||||||||
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) | SSW 18 | SSW 17 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SW 16 | S 16 | S 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | S 15 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 759 | 742 | 725 | 601 | 675 | 667 | 651 | 635 | 525 | 512 | 414 | 425 | 425 | 469 | 276 | 257 | 334 | 452 | 329 | 304 | 375 | 380 | 447 |
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 | off | cross-off |
High Tide | 10:11AM0.54m | 11:24AM0.56m | 11:58PM0.21m | 12:17PM0.58m | |||||||||||||||||||
Low Tide | 1:44AM0.17m | 8:14PM0.18m | 3:50AM0.18m | 8:11PM0.16m | |||||||||||||||||||
 |  | | | | | |  | | |  | |  | | | | | | | | | | | |
 | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 29 | 29 | 28 | 26 | 26 | 26 | 26 | 26 | 28 | 28 | 27 | 26 | 26 | 25 | 25 | 26 | 28 | 28 | 27 | 26 | 25 |
Feels °C | 26 | 27 | 27 | 27 | 27 | 25 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 25 | 26 | 25 | 25 | 26 | 26 | 26 | 25 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 17 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SW 16 | ENE 7 | S 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | S 15 |
| kJ | 759 | 742 | 725 | 601 | 675 | 667 | 651 | 635 | 525 | 512 | 414 | 425 | 425 | 469 | 255 | 91 | 334 | 452 | 329 | 304 | 375 | 380 | 447 |
Swell 2 Height (m) Direction Period (s) | NE 7 | NE 7 | NNE 7 | SSE 9 | NNE 7 | SSE 6 | NNE 6 | E 8 | SSE 8 | NNE 6 | NE 6 | S 18 | SSE 6 | SSE 6 | SSW 16 | SW 15 | SW 14 | SSE 6 | SSW 15 | SW 15 | SW 15 | SW 15 | SSE 6 |
| kJ | 93 | 91 | 50 | 8 | 45 | 16 | 54 | 42 | 24 | 52 | 40 | 162 | 15 | 17 | 276 | 229 | 214 | 15 | 142 | 104 | 104 | 104 | 8 |
Swell 3 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 5 | WSW 9 | SE 7 | WSW 9 | E 8 | SSE 9 | S 20 | SSE 7 | E 8 | SSE 6 | S 18 | S 18 | SSE 6 | S 16 | SE 8 | SW 15 | SSE 6 | SSE 6 | SE 6 | SSE 6 | SW 15 |
| kJ | 9 | 9 | 3 | 8 | 14 | 8 | 30 | 15 | 67 | 18 | 30 | 15 | 162 | 99 | 14 | 257 | 17 | 33 | 15 | 13 | 9 | 8 | 33 |
Wind waves Height (m) Direction Period (s) | ENE 3 | E 8 | E 8 | ENE 7 | E 4 | NE 7 | E 8 | NNE 6 | NE 7 | E 8 | E 8 | NE 7 | NE 7 | NE 7 | NE 7 | E 8 | ENE 7 | ENE 7 | NE 7 | NE 7 | NE 6 | ENE 6 | ENE 6 |
| kJ | 3 | 273 | 58 | 123 | 39 | 91 | 219 | 52 | 106 | 41 | 252 | 73 | 91 | 88 | 75 | 337 | 83 | 81 | 65 | 63 | 66 | 67 | 82 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 2 | 2 | 5 | 282 | 16 | 5 | 5 | 5 | 5 | 5 | 6 | 9 | 5 | 5 | 2 | 2 | 2 | 2 | 6 | 9 | 6 | 5 | 149 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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