Surf Forecasts:
How big are the waves at Army Beach today (20 Sep):
- Afternoon surf: Afternoon surf (20 Sep, local time) - 0.5ft (0.2m), 11s period with N swell.
- Evening surf: Evening surf (20 Sep, local time) - 1.5ft (0.5m), 15s period with SW swell.
The current surf forecast for Army Beach at 10PM is: 0.2m 12s primary swell from a West direction and 0.2m 11s secondary swell from a North direction (forecast issued at 07:00pm September 20). An open ocean swell of 1.0m 15s is not directed at the surf break, a second open ocean swell of 2.1m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | - | - |
| Afternoon (20 Sep) | 0.5ft (0.2m) | 11s |
| Evening (20 Sep) | 1.5ft (0.5m) | 15s |
Table - waves today at Army Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Tue afternoon, min 24°C on Sun night). Mainly fresh winds. | |||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | |||||||||||||||||
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) | N 11 | SW 15 | W 12 | W 12 | W 12 | N 10 | N 10 | W 11 | NNW 12 | N 15 | N 14 | N 13 | N 13 | N 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 9 | 104 | 11 | 11 | 11 | 8 | 8 | 9 | 14 | 17 | 36 | 55 | 121 | 144 | 189 | 183 | 164 | 158 | 158 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 00:30AM0.23m | 12:49PM0.60m | 1:04AM0.28m | 1:19PM0.61m | |||||||||||||||
Low Tide | 8:16PM0.17m | 5:00AM0.16m | 8:16PM0.16m | 6:01AM0.15m | 8:23PM0.15m | ||||||||||||||
 |  | |  | | | | | | | |  | |  | | | | | | |
 | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 25 | 24 | 25 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 28 | 28 | 26 | 26 |
Feels °C | 25 | 24 | 24 | 24 | 23 | 24 | 25 | 26 | 25 | 26 | 26 | 26 | 27 | 27 | 28 | 28 | 28 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 |
| kJ | 468 | 380 | 468 | 456 | 366 | 336 | 331 | 246 | 304 | 299 | 295 | 232 | 229 | 229 | 189 | 183 | 164 | 158 | 158 |
Swell 2 Height (m) Direction Period (s) | N 11 | SW 15 | N 11 | N 10 | N 10 | SSW 15 | SSW 15 | SSW 14 | NNW 12 | W 11 | N 14 | N 13 | N 13 | N 12 | SSW 13 | SSW 13 | S 12 | S 12 | S 12 |
| kJ | 9 | 104 | 9 | 8 | 8 | 21 | 21 | 77 | 14 | 9 | 36 | 55 | 121 | 144 | 173 | 218 | 151 | 144 | 144 |
Swell 3 Height (m) Direction Period (s) | NW 9 | NNW 11 | W 12 | W 12 | W 12 | N 10 | N 10 | W 11 | W 11 | N 15 | W 11 | W 13 | W 13 | SSW 19 | SSW 19 | SW 19 | SW 19 | SW 17 | SW 17 |
| kJ | 3 | 12 | 11 | 11 | 11 | 8 | 8 | 9 | 9 | 17 | 9 | 13 | 13 | 35 | 36 | 58 | 92 | 73 | 74 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 |
| kJ | 484 | 426 | 420 | 500 | 481 | 437 | 406 | 394 | 404 | 418 | 375 | 384 | 361 | 361 | 318 | 318 | 359 | 393 | 422 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 5 | 5 | 5 | 5 | 5 | 9 | 5 | 5 | 5 | 5 | 12 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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