Surf Forecasts:
How big are the waves at Ewa Beach Park 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) - 5.5ft (1.7m), 8s period with E swell.
- Evening surf: Evening surf (20 Sep, local time) - 5.5ft (1.7m), 8s period with E swell.
The current surf forecast for Ewa Beach Park at 1PM is: 1.8m 8s primary swell from a East direction and 0.9m 15s secondary swell from a South-southwest direction, 0.6m 15s secondary swell from a South-southwest direction (forecast issued at 07:00am September 20). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 3ft (0.9m) | 16s |
| Afternoon (20 Sep) | 5.5ft (1.7m) | 8s |
| Evening (20 Sep) | 5.5ft (1.7m) | 8s |
Table - waves today at Ewa Beach Park. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Mon 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) | S 16 | SSW 16 | E 8 | E 8 | SSW 15 | E 8 | SSW 15 | E 8 | E 8 | E 8 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | ENE 8 | ENE 8 | ENE 8 | SSW 13 | ENE 8 | ENE 8 | E 8 | ENE 8 | E 8 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 326 | 452 | 408 | 375 | 375 | 380 | 468 | 378 | 378 | 337 | 331 | 309 | 317 | 295 | 270 | 392 | 359 | 234 | 270 | 240 | 205 | 376 | 279 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross | cross | cross |
High Tide | 12:15PM0.61m | 00:42AM0.27m | 12:56PM0.63m | 1:19AM0.32m | 1:30PM0.65m | ||||||||||||||||||
Low Tide | 3:56AM0.19m | 8:03PM0.18m | 5:24AM0.18m | 8:13PM0.16m | 6:26AM0.16m | 8:26PM0.14m | |||||||||||||||||
 |  | |  | |  | | | | | | | | | | | | | | | | | | |
 | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:28 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 27 | 28 | 27 | 25 | 25 | 26 | 26 | 26 | 27 | 28 | 27 | 26 | 26 |
Feels °C | 25 | 24 | 23 | 23 | 22 | 23 | 23 | 23 | 24 | 22 | 24 | 26 | 25 | 24 | 25 | 26 | 27 | 27 | 27 | 27 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | S 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | E 8 | E 8 | SSW 13 | SSW 13 | S 12 | SSW 12 | E 8 | E 8 |
| kJ | 326 | 452 | 324 | 375 | 375 | 380 | 468 | 350 | 336 | 331 | 331 | 308 | 304 | 295 | 232 | 266 | 224 | 225 | 170 | 199 | 155 | 205 | 279 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 15 | SSW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SSW 15 | W 11 | SSE 5 | SW 14 | SSW 13 | SSW 13 | NNW 12 | NNW 12 | SW 19 | SW 19 | S 12 | S 12 |
| kJ | 251 | 54 | 146 | 104 | 104 | 104 | 54 | 33 | 33 | 33 | 52 | 21 | 9 | 3 | 49 | 229 | 229 | 14 | 28 | 93 | 92 | 144 | 104 |
Swell 3 Height (m) Direction Period (s) | SSE 8 | SSE 6 | W 13 | SSE 6 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | NW 10 | W 11 | W 11 | SW 14 | W 13 | SSW 19 | SW 19 | NNW 12 | NNW 11 | SW 17 | SW 17 |
| kJ | 13 | 7 | 3 | 8 | 3 | 11 | 11 | 11 | 11 | 10 | 10 | 9 | 4 | 10 | 10 | 51 | 30 | 35 | 57 | 27 | 25 | 72 | 75 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | — |
| kJ | 323 | 334 | 408 | 350 | 323 | 368 | 341 | 378 | 378 | 337 | 277 | 309 | 317 | 284 | 270 | 392 | 359 | 234 | 270 | 240 | 205 | 376 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 14 | 22 | 23 | 23 | 25 | 22 | 22 | 16 | 14 | 17 | 14 | 14 | 143 | 14 | 14 | 14 | 13 | 13 | 14 | 14 | 22 | 14 | 14 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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