Surf Forecasts:
How big are the waves at Ewa Beach Park today (16 Aug):
- Morning surf: Morning surf (16 Aug, local time) - 13ft (4.0m), 10s period with ESE swell.
- Afternoon surf: Afternoon surf (16 Aug, local time) - 10ft (3.0m), 9s period with ESE swell.
- Evening surf: Evening surf (16 Aug, local time) - 5ft (1.5m), 8s period with E swell.
The current surf forecast for Ewa Beach Park at 7AM is: 4.5m 10s primary swell from a East-southeast direction and 0.6m 13s secondary swell from a South direction, 0.5m 18s secondary swell from a South direction (forecast issued at 01:00am August 16). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Aug) | 13ft (4.0m) | 10s |
| Afternoon (16 Aug) | 10ft (3.0m) | 9s |
| Evening (16 Aug) | 5ft (1.5m) | 8s |
Table - waves today at Ewa Beach Park. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 39mm), heaviest during Sun morning. Warm (max 27°C on Tue afternoon, min 24°C on Mon night). Winds decreasing (strong winds from the ESE on Sun morning, light winds from the ENE by Sun night). | ||||||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||||||||||
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) | E 10 | E 10 | ESE 10 | ESE 9 | ESE 9 | E 9 | E 8 | ENE 8 | ESE 8 | S 15 | S 14 | ENE 8 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 5355 | 4518 | 3640 | 1968 | 1233 | 498 | 360 | 277 | 327 | 422 | 334 | 334 | 329 | 329 | 320 | 246 | 222 | 219 | 215 | 219 | 215 | 123 | 166 | 166 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 6:30AM0.53m | 5:53PM0.51m | 7:23AM0.54m | 6:10PM0.44m | 8:25AM0.55m | 6:13PM0.37m | ||||||||||||||||||
Low Tide | 00:04AM0.09m | 12:13PM0.25m | 00:28AM0.10m | 1:18PM0.31m | 00:54AM0.11m | 2:59PM0.34m | ||||||||||||||||||
 |  |  | | | | | |  |  |  | | |  | | |  | | | | | | | | |
 | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — |
mm | 1 | 12 | 16 | 13 | 4 | 3 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 24 | 25 | 26 | 27 | 26 | 25 | 25 |
Feels °C | 18 | 19 | 22 | 23 | 25 | 26 | 27 | 27 | 29 | 28 | 28 | 26 | 25 | 25 | 25 | 26 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 13 | S 12 | E 9 | E 9 | E 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | S 14 | S 14 | E 7 | S 13 | ENE 7 | E 7 | S 13 | S 13 | S 13 | S 13 |
| kJ | 184 | 195 | 121 | 113 | 664 | 498 | 360 | 277 | 228 | 217 | 177 | 145 | 163 | 134 | 320 | 246 | 106 | 219 | 86 | 86 | 215 | 119 | 166 | 166 |
Swell 2 Height (m) Direction Period (s) | S 18 | S 18 | S 17 | S 16 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | S 15 | S 14 | S 14 | S 14 | S 14 | SSW 6 | SW 6 | S 13 | SW 16 | S 13 | S 13 | SSW 18 | SSW 18 | SW 18 | SW 18 |
| kJ | 99 | 98 | 147 | 192 | 574 | 280 | 197 | 150 | 99 | 422 | 334 | 334 | 329 | 329 | 14 | 9 | 222 | 41 | 215 | 219 | 120 | 123 | 80 | 80 |
Swell 3 Height (m) Direction Period (s) | WNW 13 | WNW 12 | WNW 12 | WNW 12 | S 13 | S 13 | SSW 6 | S 13 | S 14 | SSE 7 | SSE 6 | SSE 6 | SSW 6 | SW 6 | SSE 5 | WNW 11 | SW 6 | E 9 | SW 16 | SSW 17 | SW 7 | SE 8 | WSW 7 | WNW 12 |
| kJ | 33 | 29 | 29 | 29 | 161 | 215 | 51 | 215 | 315 | 64 | 47 | 34 | 23 | 18 | 6 | 24 | 8 | 15 | 69 | 115 | 12 | 18 | 9 | 29 |
Wind waves Height (m) Direction Period (s) | E 10 | E 10 | ESE 10 | ESE 9 | ESE 9 | SE 8 | SE 8 | SE 7 | ESE 8 | — | ENE 8 | ENE 8 | ENE 7 | ENE 7 | E 7 | E 7 | — | E 7 | ENE 7 | ENE 7 | E 7 | E 7 | E 7 | E 8 |
| kJ | 5355 | 4518 | 3640 | 1968 | 1233 | 373 | 268 | 223 | 327 | — | 159 | 276 | 268 | 231 | 134 | 131 | — | 86 | 132 | 82 | 83 | 97 | 106 | 98 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 193 | 193 | 173 | 172 | 75 | 33 | 25 | 17 | 10 | 4 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 13 | 13 | 13 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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