Surf Forecasts:
How big are the waves at Backdoor today (16 Sep):
- Morning surf: Morning surf (16 Sep, local time) - 1.5ft (0.5m), 18s period with SW swell.
- Afternoon surf: Afternoon surf (16 Sep, local time) - 1.5ft (0.5m), 18s period with SW swell.
- Evening surf: Evening surf (16 Sep, local time) - 1ft (0.3m), 11s period with SW swell.
The current surf forecast for Backdoor at 12AM is: 0.5m 19s primary swell from a Southwest direction and 0.7m 8s secondary swell from a North-northeast direction (forecast issued at 07:00pm September 15). An open ocean swell of 1.1m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Sep) | 1.5ft (0.5m) | 18s |
| Afternoon (16 Sep) | 1.5ft (0.5m) | 18s |
| Evening (16 Sep) | 1ft (0.3m) | 11s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Warm (max 27°C on Wed morning, min 25°C on Tue night). Mainly fresh winds. | |||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | |||||||||||||||||
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) | NE 8 | SW 19 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SSW 18 | SW 11 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 20 | NW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 99 | 184 | 184 | 181 | 171 | 155 | 152 | 152 | 0 | 19 | 150 | 145 | 132 | 127 | 125 | 125 | 125 | 15 | 6 |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:37AM0.59m | 8:23AM0.57m | |||||||||||||||||
Low Tide | 10:21PM0.13m | 10:44PM0.15m | |||||||||||||||||
 |  | |  | | | | | | | | | |  | |  | |  | | |
 | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | 6:35 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:32 | — | — |
mm | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 |
Temp °C | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 25 |
Feels °C | 29 | 27 | 27 | 28 | 26 | 27 | 28 | 27 | 26 | 26 | 26 | 27 | 27 | 25 | 26 | 26 | 26 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | E 12 | SW 19 | NNE 8 | NNE 7 | SW 19 | SW 18 | E 10 | E 10 | E 10 | SSW 18 | SW 18 | E 10 | E 10 | E 10 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 16 |
| kJ | 44 | 184 | 39 | 61 | 171 | 155 | 51 | 72 | 72 | 207 | 150 | 98 | 96 | 125 | 125 | 125 | 125 | 171 | 175 |
Swell 2 Height (m) Direction Period (s) | SSW 19 | E 11 | SW 19 | SW 19 | E 11 | E 10 | SW 18 | SW 18 | SSW 18 | SW 11 | SW 11 | SW 17 | SW 16 | SW 16 | WSW 11 | SSW 20 | SSW 20 | SW 20 | SW 10 |
| kJ | 148 | 39 | 184 | 181 | 57 | 54 | 152 | 152 | 207 | 19 | 19 | 145 | 132 | 127 | 11 | 37 | 37 | 15 | 4 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | E 11 | E 11 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | WNW 10 | NW 10 | SW 11 | SW 11 | SW 11 | SSW 20 | NW 10 | WSW 10 | SW 8 | NW 12 |
| kJ | 15 | 15 | 38 | 58 | 14 | 14 | 13 | 12 | 12 | 9 | 4 | 19 | 19 | 19 | 38 | 4 | 10 | 3 | 6 |
Wind waves Height (m) Direction Period (s) | NE 8 | NE 8 | E 5 | E 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | NE 7 | ENE 7 | ENE 7 | NE 7 | NE 7 | NE 7 | ENE 7 | ENE 7 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 99 | 96 | 78 | 75 | 127 | 131 | 141 | 150 | 178 | 229 | 269 | 286 | 303 | 321 | 431 | 475 | 737 | 697 | 623 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 26 | 29 | 26 | 26 | 24 | 24 | 24 | 26 | 26 | 2 | 24 | 24 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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