Surf Forecasts:
How big are the waves at Backdoor today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 0.5ft (0.2m), 12s period with W swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 0.5ft (0.1m), 12s period with W swell.
- Evening surf: Evening surf (31 Aug, local time) - 0.5ft (0.2m), 13s period with W swell.
The current surf forecast for Backdoor at 10AM is: 0.2m 12s primary swell from a West direction (forecast issued at 07:00am August 31). An open ocean swell of 0.4m 15s is not directed at the surf break, a second open ocean swell of 0.2m 11s 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 (31 Aug) | 0.5ft (0.2m) | 12s |
| Afternoon (31 Aug) | 0.5ft (0.1m) | 12s |
| Evening (31 Aug) | 0.5ft (0.2m) | 13s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 25°C on Mon morning). Mainly fresh winds. | |||||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||||||||
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) | ENE 7 | W 12 | W 12 | W 12 | ENE 8 | W 13 | W 14 | W 12 | W 12 | W 13 | W 12 | W 12 | W 12 | W 11 | W 11 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SW 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 0 | 12 | 3 | 3 | 0 | 13 | 14 | 12 | 12 | 13 | 11 | 11 | 11 | 10 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 |
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 | 4:40AM0.57m | 3:43PM0.55m | 5:40AM0.58m | 3:43PM0.51m | 7:00AM0.59m | 2:52PM0.48m | |||||||||||||||||
Low Tide | 10:15AM0.33m | 10:30PM0.13m | 11:10AM0.41m | 10:59PM0.11m | 1:04PM0.47m | ||||||||||||||||||
 |  | | | | | | | | | | | | | | | | | | | | | | |
 | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — |
 | — | — | — | — | 6:49 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:46 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 27 | 26 | 26 | 25 |
Feels °C | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 23 | 25 | 25 | 25 | 23 | 24 | 24 | 24 | 24 | 25 | 26 | 25 | 25 | 23 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | SW 15 | SW 15 | ENE 10 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SW 14 | SSW 14 | SW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 16 | SSW 16 | S 16 | E 14 | E 14 | E 14 | E 13 |
| kJ | 33 | 57 | 55 | 33 | 52 | 51 | 51 | 53 | 37 | 52 | 39 | 53 | 40 | 40 | 19 | 54 | 52 | 51 | 46 | 66 | 66 | 37 | 87 |
Swell 2 Height (m) Direction Period (s) | SW 15 | S 11 | S 11 | SW 14 | SSW 18 | W 13 | W 14 | W 12 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | W 12 | S 18 | SSW 17 | SSW 14 | SSW 14 | SSW 14 | E 14 | S 16 | S 16 | S 15 | S 15 |
| kJ | 57 | 9 | 9 | 53 | 31 | 13 | 14 | 12 | 36 | 33 | 31 | 31 | 11 | 25 | 30 | 19 | 19 | 19 | 32 | 46 | 45 | 41 | 39 |
Swell 3 Height (m) Direction Period (s) | S 11 | W 12 | W 12 | W 12 | S 11 | S 19 | S 19 | S 19 | W 12 | W 13 | W 12 | W 12 | S 18 | W 11 | W 11 | ESE 11 | ESE 10 | ESE 10 | SSW 14 | SSW 13 | E 12 | E 12 | SW 13 |
| kJ | 9 | 12 | 3 | 3 | 9 | 29 | 30 | 30 | 12 | 13 | 11 | 11 | 25 | 10 | 9 | 12 | 10 | 10 | 19 | 18 | 11 | 26 | 7 |
Wind waves Height (m) Direction Period (s) | 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 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 349 | 423 | 429 | 382 | 430 | 430 | 471 | 451 | 451 | 483 | 421 | 443 | 487 | 520 | 527 | 496 | 443 | 475 | 477 | 502 | 441 | 474 | 526 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 24 | 24 | 24 | 26 | 24 | 26 | 26 | 24 | 24 | 26 | 24 | 24 | 24 | 165 | 165 | 26 | 24 | 26 | 26 | 24 | 26 | 28 | 26 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
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