Surf Forecasts:
How big are the waves at Keaulanas today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 3ft (0.9m), 16s period with SSW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 3ft (0.9m), 15s period with SSW swell.
- Evening surf: Evening surf (20 Sep, local time) - 3ft (0.9m), 15s period with SSW swell.
The current surf forecast for Keaulanas at 7AM is: 0.9m 16s primary swell from a South-southwest direction (forecast issued at 01:00am September 20). An open ocean swell of 0.4m 6s is not directed at the surf break, a second open ocean swell of 0.9m 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 Sep) | 3ft (0.9m) | 16s |
| Afternoon (20 Sep) | 3ft (0.9m) | 15s |
| Evening (20 Sep) | 3ft (0.9m) | 15s |
Table - waves today at Keaulanas. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Tue afternoon, min 25°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||||||||||||
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) | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | S 13 | NNW 11 | NNW 11 | NNW 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 287 | 350 | 452 | 402 | 380 | 375 | 380 | 365 | 449 | 336 | 331 | 327 | 317 | 304 | 299 | 295 | 232 | 229 | 225 | 173 | 206 | 167 | 161 | 158 |
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 | off | off | off | off | off | cross-off | off | off | off | off | off | off | off | cross-off | cross-off | off | cross-off |
High Tide | 11:58PM0.21m | 12:17PM0.58m | 00:48AM0.25m | 12:57PM0.60m | 1:23AM0.29m | 1:30PM0.62m | ||||||||||||||||||
Low Tide | 3:50AM0.18m | 8:11PM0.16m | 5:19AM0.17m | 8:19PM0.15m | 6:22AM0.15m | 8:31PM0.13m | ||||||||||||||||||
 |  |  |  | | | | | | | | | | | |  | | | | | | | | | |
 | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 28 | 28 | 27 | 25 | 25 | 25 | 25 | 25 | 27 | 28 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 29 | 28 | 27 | 26 |
Feels °C | 25 | 26 | 25 | 26 | 26 | 25 | 24 | 25 | 24 | 24 | 24 | 26 | 27 | 25 | 26 | 26 | 27 | 28 | 27 | 29 | 29 | 28 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | NE 7 | SSW 13 | NE 6 | NNW 12 | NNW 11 | NNW 11 | NNW 11 |
| kJ | 287 | 350 | 452 | 402 | 380 | 375 | 380 | 365 | 449 | 336 | 331 | 327 | 317 | 304 | 299 | 295 | 232 | 75 | 225 | 40 | 186 | 167 | 161 | 158 |
Swell 2 Height (m) Direction Period (s) | S 16 | SW 14 | SSE 6 | SSE 6 | SW 15 | SW 15 | SW 15 | SW 15 | SSE 6 | SW 15 | ESE 8 | ESE 8 | SW 14 | SSE 6 | W 11 | ESE 9 | E 8 | SSW 13 | N 12 | NNW 12 | S 13 | S 12 | S 12 | NE 8 |
| kJ | 257 | 214 | 15 | 8 | 104 | 104 | 104 | 75 | 3 | 33 | 23 | 22 | 51 | 3 | 9 | 15 | 28 | 229 | 146 | 147 | 206 | 148 | 144 | 63 |
Swell 3 Height (m) Direction Period (s) | ESE 8 | N 12 | SW 15 | E 10 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | N 10 | NNW 10 | SSW 15 | SSW 15 | W 11 | W 11 | N 10 | N 14 | N 13 | N 13 | SSW 19 | SSW 13 | E 8 | SW 19 | SW 17 | S 12 |
| kJ | 67 | 3 | 33 | 7 | 8 | 7 | 7 | 7 | 8 | 11 | 21 | 21 | 9 | 9 | 7 | 36 | 32 | 86 | 35 | 173 | 12 | 92 | 72 | 144 |
Wind waves Height (m) Direction Period (s) | NE 6 | ENE 7 | NE 7 | NE 7 | ENE 7 | ENE 7 | ENE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | — | NE 7 | ENE 8 | NE 5 | NE 8 | NE 6 | SE 5 |
| kJ | 47 | 108 | 77 | 65 | 78 | 91 | 88 | 91 | 88 | 88 | 72 | 62 | 73 | 47 | 54 | 44 | 31 | — | 54 | 270 | 28 | 79 | 42 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 2 | 2 | 5 | 9 | 9 | 5 | 0 | 5 | 0 | 0 | 0 | 2 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 2 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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