Surf Forecasts:
How big are the waves at Backdoor today (10 Aug):
- Afternoon surf: Afternoon surf (10 Aug, local time) - 1.5ft (0.4m), 9s period with NNW swell.
- Evening surf: Evening surf (10 Aug, local time) - 1.5ft (0.4m), 8s period with NNW swell.
The current surf forecast for Backdoor at 11PM is: 0.4m 8s primary swell from a North-northwest direction and 0.4m 7s secondary swell from a Northeast direction (forecast issued at 07:00pm August 10). An open ocean swell of 1.3m 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 (10 Aug) | - | - |
| Afternoon (10 Aug) | 1.5ft (0.4m) | 9s |
| Evening (10 Aug) | 1.5ft (0.4m) | 8s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Tue morning, min 25°C on Tue night). Mainly fresh winds. | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||||
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) | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | WNW 13 | WNW 12 | W 12 | WNW 12 | WNW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 24 | 22 | 22 | 13 | 12 | 11 | 11 | 11 | 19 | 8 | 8 | 8 | 8 | 8 | 16 | 15 | 11 | 14 | 14 |
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 | 00:47AM0.36m | 2:39PM0.84m | 1:43AM0.40m | 3:09PM0.81m | |||||||||||||||
Low Tide | 9:20PM0.29m | 7:00AM0.01m | 9:35PM0.27m | 7:46AM0.03m | 9:53PM0.25m | ||||||||||||||
 |  | |  | | | | | | | | | | | | | | | | |
 | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | 7:06 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 27 | 26 | 25 | 25 |
Feels °C | 28 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 26 | 24 | 25 | 25 | 25 | 25 | 24 | 26 | 25 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | NNW 8 | NE 7 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SW 13 | SSW 13 | SSW 12 | SSW 12 |
| kJ | 24 | 22 | 18 | 13 | 12 | 11 | 11 | 11 | 40 | 39 | 36 | 35 | 34 | 33 | 32 | 41 | 31 | 52 | 30 |
Swell 2 Height (m) Direction Period (s) | W 10 | W 10 | NNW 8 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | NNW 7 | NNW 7 | NNW 7 | W 10 | W 10 | W 10 | S 18 | S 18 | S 18 | S 18 | S 17 |
| kJ | 18 | 18 | 22 | 23 | 22 | 21 | 21 | 18 | 11 | 5 | 5 | 8 | 8 | 8 | 25 | 56 | 55 | 54 | 49 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSW 16 | W 10 | W 10 | NE 8 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | NNW 7 | NNW 7 | S 19 | WNW 13 | WNW 12 | W 12 | WNW 12 | WNW 12 |
| kJ | 24 | 24 | 18 | 8 | 9 | 8 | 8 | 8 | 19 | 8 | 8 | 5 | 5 | 28 | 16 | 15 | 11 | 14 | 14 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 6 | ENE 7 | ENE 7 | ENE 6 | E 6 |
| kJ | 212 | 206 | 198 | 181 | 178 | 233 | 233 | 203 | 209 | 203 | 203 | 206 | 198 | 166 | 190 | 175 | 175 | 165 | 206 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 24 | 24 | 2 | 6 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 26 | 24 | 24 | 24 | 28 | 24 | 24 | 24 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Backdoor surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest