Surf Forecasts:
How big are the waves at Ewa Beach Park today (21 Jul):
- Morning surf: Morning surf (21 Jul, local time) - 2.5ft (0.8m), 15s period with S swell.
- Afternoon surf: Afternoon surf (21 Jul, local time) - 3ft (0.9m), 14s period with S swell.
- Evening surf: Evening surf (21 Jul, local time) - 3.5ft (1.0m), 13s period with S swell.
The current surf forecast for Ewa Beach Park at 8AM is: 0.8m 15s primary swell from a South direction and 0.9m 7s secondary swell from a East direction (forecast issued at 01:00am July 21). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jul) | 2.5ft (0.8m) | 15s |
| Afternoon (21 Jul) | 3ft (0.9m) | 14s |
| Evening (21 Jul) | 3.5ft (1.0m) | 13s |
Table - waves today at Ewa Beach Park. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Tue morning. Warm (max 27°C on Tue morning, min 24°C on Tue night). Winds increasing (light winds from the ENE on Tue night, fresh winds from the ENE by Thu morning). | ||||||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||||||||||
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) | ENE 7 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | SSW 24 | SSW 24 | SSW 24 | SSW 23 | SSW 22 | SSW 22 | SSW 22 | SSW 21 | SSW 20 | SSW 20 | SSW 20 | SSW 20 | SSW 19 | SSW 19 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 163 | 339 | 272 | 329 | 320 | 311 | 357 | 347 | 342 | 336 | 322 | 437 | 433 | 426 | 512 | 485 | 480 | 467 | 602 | 561 | 512 | 395 | 708 | 679 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 10:46AM0.54m | 7:33PM0.36m | 11:52AM0.59m | 12:45PM0.63m | 10:43PM0.26m | |||||||||||||||||||
Low Tide | 2:48AM0.12m | 6:02PM0.36m | 3:27AM0.12m | 4:16AM0.12m | 9:32PM0.26m | |||||||||||||||||||
 |  |  |  | | |  | | | |  | | | | | | | | | | | | | | |
 | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:14 | — | — |
mm | — | 1 | 1 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 25 | 27 | 27 | 27 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 24 | 25 | 24 | 24 | 25 | 26 | 26 | 26 | 24 | 24 |
Feels °C | 26 | 25 | 26 | 28 | 26 | 26 | 25 | 26 | 27 | 25 | 24 | 24 | 24 | 24 | 23 | 24 | 22 | 22 | 23 | 22 | 22 | 22 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | E 7 | ENE 7 | E 7 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | SSW 23 | S 13 | S 13 | S 13 | S 13 | SSW 20 | SSW 20 | SSW 20 | SSW 20 | SSW 19 | SSW 19 |
| kJ | 109 | 86 | 79 | 329 | 320 | 311 | 357 | 347 | 342 | 336 | 273 | 277 | 171 | 426 | 212 | 209 | 206 | 206 | 602 | 561 | 512 | 395 | 708 | 679 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 15 | S 15 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 12 | E 12 | SSW 24 | S 13 | SSW 22 | SSW 22 | SSW 22 | SSW 21 | S 13 | S 12 | S 12 | S 11 | S 11 | S 13 |
| kJ | 163 | 339 | 272 | 82 | 65 | 65 | 65 | 67 | 65 | 82 | 103 | 102 | 433 | 125 | 512 | 485 | 480 | 467 | 199 | 134 | 169 | 90 | 114 | 85 |
Swell 3 Height (m) Direction Period (s) | S 15 | SW 16 | SSW 17 | SW 17 | SW 17 | SSW 16 | SSW 16 | SSW 15 | E 13 | E 12 | SSW 24 | SSW 24 | E 12 | E 11 | E 11 | E 12 | E 12 | E 12 | E 12 | SW 16 | SW 16 | SSW 16 | E 11 | S 11 |
| kJ | 161 | 132 | 108 | 73 | 70 | 103 | 95 | 93 | 84 | 77 | 322 | 437 | 100 | 90 | 125 | 134 | 139 | 103 | 137 | 124 | 125 | 173 | 61 | 56 |
Wind waves Height (m) Direction Period (s) | ENE 7 | — | — | — | — | — | — | ENE 7 | ENE 7 | ENE 7 | E 7 | E 7 | E 7 | E 7 | ENE 6 | ENE 6 | E 6 | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 7 |
| kJ | 162 | — | — | — | — | — | — | 120 | 136 | 158 | 94 | 111 | 92 | 89 | 88 | 89 | 80 | 156 | 141 | 276 | 270 | 212 | 176 | 233 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 12 | 14 | 14 | 13 | 13 | 14 | 4 | 4 | 14 | 15 | 14 | 17 | 14 | 14 | 14 | 14 | 15 | 22 | 28 | 28 | 22 | 22 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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