Surf Forecasts:
How big are the waves at Backdoor today (15 Sep):
- Morning surf: Morning surf (15 Sep, local time) - 1.5ft (0.5m), 20s period with SW swell.
- Afternoon surf: Afternoon surf (15 Sep, local time) - 2.5ft (0.7m), 8s period with NNE swell.
- Evening surf: Evening surf (15 Sep, local time) - 1.5ft (0.5m), 19s period with SW swell.
The current surf forecast for Backdoor at 7AM is: 0.5m 8s primary swell from a North-northeast direction (forecast issued at 01:00am September 15). An open ocean swell of 0.4m 21s is not directed at the surf break, a second open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 1.5ft (0.5m) | 20s |
| Afternoon (15 Sep) | 2.5ft (0.7m) | 8s |
| Evening (15 Sep) | 1.5ft (0.5m) | 19s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Thu night. Warm (max 27°C on Tue morning, min 25°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||||||||||
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) | NE 8 | NE 8 | NNE 8 | SW 20 | NNE 8 | NNE 8 | SW 19 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | WNW 10 | SW 11 | SW 18 | NE 7 | NE 7 | NE 7 | SW 16 | SW 16 | SW 16 | NNE 7 | NW 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 93 | 107 | 37 | 188 | 39 | 52 | 184 | 184 | 181 | 171 | 155 | 152 | 152 | 9 | 19 | 150 | 214 | 268 | 293 | 125 | 125 | 125 | 91 | 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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:33AM0.61m | 2:56PM0.46m | 6:37AM0.59m | 8:23AM0.57m | ||||||||||||||||||||
Low Tide | 11:37AM0.42m | 10:21PM0.13m | 10:44PM0.15m | |||||||||||||||||||||
 | |  |  | | |  | | | | | | | | | | | |  | | | |  | | |
 | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:32 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | 1 | 1 | 2 |
Temp °C | 25 | 25 | 25 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 26 |
Feels °C | 27 | 27 | 26 | 28 | 28 | 29 | 28 | 28 | 27 | 26 | 27 | 28 | 27 | 26 | 27 | 26 | 27 | 27 | 27 | 26 | 27 | 26 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | NE 8 | SW 21 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | SW 19 | NNE 8 | NNE 8 | NNE 7 | E 10 | E 10 | E 10 | E 10 | E 10 | SW 18 | E 10 | E 10 | E 10 | SW 16 | SW 16 | SW 16 | NNE 7 | SSW 16 |
| kJ | 93 | 116 | 37 | 52 | 39 | 52 | 184 | 50 | 37 | 68 | 54 | 73 | 100 | 98 | 102 | 150 | 96 | 98 | 125 | 125 | 125 | 125 | 91 | 175 |
Swell 2 Height (m) Direction Period (s) | SW 21 | E 13 | SSW 21 | SW 20 | SSW 20 | E 12 | E 11 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SSW 18 | SSW 18 | SW 11 | SW 17 | SW 16 | SW 16 | SW 11 | SSW 20 | SSW 20 | SSW 16 | SW 10 |
| kJ | 72 | 31 | 170 | 188 | 149 | 44 | 39 | 184 | 181 | 171 | 155 | 152 | 152 | 207 | 207 | 19 | 145 | 132 | 127 | 18 | 37 | 37 | 171 | 4 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SSW 13 | NE 8 | E 12 | E 12 | SSW 19 | SSW 12 | E 11 | E 11 | E 11 | SSW 12 | SSW 12 | SSW 11 | WNW 10 | SW 11 | NW 10 | SW 11 | SW 11 | SW 11 | SSW 20 | NW 10 | SW 8 | SW 20 | NW 12 |
| kJ | 17 | 17 | 16 | 47 | 45 | 148 | 15 | 38 | 58 | 57 | 14 | 13 | 12 | 9 | 19 | 4 | 19 | 5 | 19 | 38 | 4 | 3 | 15 | 6 |
Wind waves Height (m) Direction Period (s) | — | NE 8 | ENE 4 | ENE 5 | ENE 5 | ENE 5 | NE 8 | E 5 | E 5 | E 5 | ENE 6 | NE 7 | NE 7 | NE 6 | NE 6 | ENE 6 | NE 7 | NE 7 | NE 7 | ENE 8 | ENE 10 | ENE 9 | E 9 | ENE 9 |
| kJ | — | 107 | 20 | 32 | 25 | 23 | 113 | 28 | 55 | 46 | 106 | 127 | 131 | 116 | 131 | 211 | 214 | 268 | 293 | 468 | 799 | 675 | 521 | 744 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 2 | 6 | 2 | 6 | 2 | 2 | 2 | 2 | 2 | 2 | 24 | 30 | 33 | 26 | 28 | 24 | 24 | 24 | 26 | 26 | 2 | 5 | 24 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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