Surf Forecasts:
How big are the waves at Backdoor today (19 Sep):
- Morning surf: Morning surf (19 Sep, local time) - 0.5ft (0.1m), 8s period with NW swell.
- Afternoon surf: Afternoon surf (19 Sep, local time) - 1.5ft (0.5m), 16s period with SW swell.
- Evening surf: Evening surf (19 Sep, local time) - 0.5ft (0.1m), 10s period with NW swell.
The current surf forecast for Backdoor at 1PM is: 0.5m 16s primary swell from a Southwest direction (forecast issued at 07:00am September 19). An open ocean swell of 0.1m 18s is not directed at the surf break, a second open ocean swell of 2.0m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | 0.5ft (0.1m) | 8s |
| Afternoon (19 Sep) | 1.5ft (0.5m) | 16s |
| Evening (19 Sep) | 0.5ft (0.1m) | 10s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Sat morning, min 25°C on Sun night). Mainly fresh winds. | |||||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||||||||
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) | NW 9 | NW 9 | W 9 | SW 16 | W 9 | NW 10 | SW 16 | N 12 | N 12 | N 11 | W 13 | N 11 | N 11 | N 11 | N 10 | W 12 | N 10 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 3 | 3 | 3 | 121 | 1 | 4 | 121 | 4 | 3 | 2 | 3 | 10 | 9 | 9 | 9 | 11 | 8 | 29 | 32 | 31 | 30 | 30 | 36 |
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 | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:23AM0.62m | 11:59AM0.65m | 11:14PM0.30m | 12:26PM0.67m | |||||||||||||||||||
Low Tide | 2:58AM0.22m | 8:12PM0.28m | 4:29AM0.20m | 7:47PM0.27m | |||||||||||||||||||
 |  | | | | |  | | |  | | | | | | | | | | | | | | |
 | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 |
Feels °C | 24 | 25 | 26 | 26 | 25 | 26 | 25 | 25 | 26 | 25 | 26 | 25 | 25 | 25 | 25 | 23 | 23 | 23 | 24 | 25 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 |
| kJ | 169 | 166 | 166 | 121 | 164 | 164 | 121 | 95 | 94 | 86 | 86 | 85 | 85 | 85 | 84 | 82 | 53 | 29 | 32 | 31 | 30 | 30 | 29 |
Swell 2 Height (m) Direction Period (s) | NW 9 | NW 9 | NW 8 | S 18 | S 18 | NW 10 | N 12 | N 12 | N 12 | N 11 | N 11 | N 11 | N 11 | N 11 | N 10 | N 10 | N 10 | SSW 14 | S 14 | SSW 14 | S 13 | S 13 | N 14 |
| kJ | 3 | 3 | 3 | 6 | 6 | 4 | 3 | 3 | 3 | 2 | 2 | 10 | 9 | 9 | 9 | 8 | 8 | 41 | 35 | 36 | 14 | 14 | 36 |
Swell 3 Height (m) Direction Period (s) | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | NW 10 | NW 10 | NW 9 | S 16 | W 13 | NW 9 | NW 9 | NW 9 | W 12 | W 12 | S 14 | N 10 | N 10 | W 11 | NNW 10 | W 11 | S 13 |
| kJ | 2 | 2 | 1 | 1 | 1 | 1 | 4 | 4 | 3 | 5 | 3 | 3 | 3 | 3 | 3 | 11 | 16 | 8 | 8 | 9 | 9 | 9 | 14 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 523 | 509 | 522 | 526 | 619 | 579 | 526 | 476 | 476 | 476 | 476 | 428 | 407 | 419 | 404 | 447 | 427 | 427 | 438 | 416 | 402 | 376 | 434 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 24 | 24 | 24 | 24 | 24 | 24 | 2 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 26 | 24 | 28 | 24 | 24 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
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