Surf Forecasts:
How big are the waves at Backdoor today (22 Aug):
- Morning surf: Morning surf (22 Aug, local time) - 1.5ft (0.4m), 10s period with WNW swell.
- Afternoon surf: Afternoon surf (22 Aug, local time) - 1.5ft (0.5m), 10s period with W swell.
- Evening surf: Evening surf (22 Aug, local time) - 2ft (0.6m), 13s period with WNW swell.
The current surf forecast for Backdoor at 2AM is: 0.5m 16s primary swell from a Southwest direction and 0.4m 10s secondary swell from a West direction (forecast issued at 07:00pm August 21). An open ocean swell of 1.5m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Aug) | 1.5ft (0.4m) | 10s |
| Afternoon (22 Aug) | 1.5ft (0.5m) | 10s |
| Evening (22 Aug) | 2ft (0.6m) | 13s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Fri night, min 25°C on Sat night). Mainly fresh winds. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | |||||||||||||||||
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) | NNE 7 | NNE 7 | SW 16 | SW 16 | SW 16 | WNW 10 | WNW 10 | W 10 | NW 14 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | NW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 41 | 41 | 124 | 124 | 122 | 34 | 34 | 53 | 59 | 137 | 106 | 164 | 156 | 109 | 103 | 75 | 68 | 67 | 116 |
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 | 12:49PM0.67m | 1:16PM0.70m | |||||||||||||||||
Low Tide | 3:50AM0.17m | 5:00AM0.14m | 9:01PM0.30m | ||||||||||||||||
 |  | | | | |  | | | | | | | | | | | | | |
 | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | 6:58 | — | — | — | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:55 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 |
Feels °C | 29 | 29 | 27 | 26 | 27 | 26 | 25 | 27 | 25 | 26 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 7 | SW 16 | SW 16 | SW 16 | SSW 16 | WNW 10 | W 10 | W 11 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | ESE 9 | WNW 10 | WNW 10 | NW 12 |
| kJ | 41 | 41 | 124 | 124 | 122 | 98 | 34 | 53 | 59 | 137 | 106 | 164 | 156 | 109 | 103 | 96 | 68 | 67 | 116 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SSW 16 | W 10 | W 10 | WNW 10 | WNW 10 | SSW 16 | SSW 16 | SSW 16 | SW 16 | W 11 | SW 15 | SW 15 | ESE 9 | SW 15 | WNW 11 | SW 15 | SW 14 | SW 14 |
| kJ | 64 | 98 | 33 | 31 | 33 | 34 | 98 | 97 | 95 | 62 | 58 | 60 | 59 | 76 | 57 | 75 | 54 | 54 | 53 |
Swell 3 Height (m) Direction Period (s) | W 10 | W 10 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | NW 14 | WSW 9 | SW 16 | WSW 9 | WSW 9 | SW 15 | WSW 9 | SW 15 | WNW 14 | NW 13 | SW 8 |
| kJ | 31 | 31 | 8 | 10 | 10 | 10 | 10 | 9 | 50 | 8 | 61 | 8 | 8 | 57 | 8 | 56 | 18 | 28 | 3 |
Wind waves Height (m) Direction Period (s) | ENE 7 | E 7 | ENE 7 | E 7 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 | E 7 | ENE 7 | E 7 | E 6 | E 6 |
| kJ | 71 | 103 | 168 | 200 | 190 | 202 | 266 | 341 | 376 | 348 | 416 | 416 | 416 | 336 | 320 | 277 | 293 | 247 | 267 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 2 | 2 | 2 | 2 | 2 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 26 | 26 | 26 | 26 | 24 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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