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 1PM is: 0.9m 15s primary swell from a South-southwest direction and 0.5m 15s secondary swell from a Southwest direction (forecast issued at 07:00am September 20). An 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 | |||||||||||||||||||||
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 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 | 350 | 452 | 402 | 304 | 375 | 380 | 365 | 350 | 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 | off | off | off | off | cross-off | off | off | off | off | off | off | off | off | cross-off | cross-off | off | cross-off |
High Tide | 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 | 28 | 28 | 27 | 25 | 25 | 25 | 25 | 25 | 27 | 28 | 27 | 25 | 26 | 26 | 26 | 26 | 27 | 29 | 28 | 26 | 26 |
Feels °C | 26 | 25 | 26 | 26 | 25 | 24 | 24 | 24 | 25 | 24 | 26 | 27 | 25 | 24 | 27 | 27 | 27 | 27 | 28 | 29 | 28 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | ENE 7 | 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 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 |
| kJ | 111 | 452 | 402 | 304 | 375 | 380 | 365 | 350 | 336 | 331 | 327 | 317 | 304 | 299 | 295 | 232 | 229 | 225 | 147 | 186 | 167 | 161 | 158 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSE 6 | E 8 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | ESE 9 | ESE 8 | SW 14 | SSE 5 | ENE 8 | N 14 | E 8 | N 13 | N 12 | SSW 13 | S 13 | S 12 | S 12 | S 12 |
| kJ | 350 | 15 | 29 | 104 | 104 | 104 | 75 | 33 | 33 | 31 | 22 | 51 | 3 | 20 | 36 | 19 | 86 | 146 | 173 | 206 | 148 | 144 | 141 |
Swell 3 Height (m) Direction Period (s) | SW 14 | SW 15 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | NNW 10 | SSW 15 | SSW 15 | SSE 6 | W 11 | SSE 5 | W 11 | N 13 | W 13 | W 13 | SW 19 | E 8 | ESE 8 | SW 17 | SW 17 |
| kJ | 214 | 33 | 8 | 8 | 7 | 7 | 3 | 3 | 11 | 21 | 21 | 3 | 9 | 3 | 10 | 32 | 13 | 13 | 57 | 12 | 14 | 72 | 74 |
Wind waves Height (m) Direction Period (s) | E 8 | 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 6 | NE 6 | NE 6 | NE 5 | NE 6 | NE 6 | NE 6 |
| kJ | 314 | 77 | 52 | 76 | 91 | 74 | 91 | 91 | 91 | 72 | 62 | 62 | 58 | 36 | 44 | 31 | 40 | 42 | 39 | 35 | 33 | 39 | 40 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 2 | 5 | 6 | 6 | 9 | 5 | 5 | 0 | 0 | 0 | 2 | 0 | 160 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 | 0 | 2 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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