Surf Forecasts:
How big are the waves at Backdoor today (30 Sep):
- Morning surf: Morning surf (30 Sep, local time) - 3.5ft (1.0m), 10s period with WSW swell.
- Afternoon surf: Afternoon surf (30 Sep, local time) - 3.5ft (1.0m), 10s period with W swell.
- Evening surf: Evening surf (30 Sep, local time) - 2.5ft (0.7m), 9s period with W swell.
The current surf forecast for Backdoor at 5PM is: 0.9m 10s primary swell from a West-southwest direction (forecast issued at 01:00pm September 30). An open ocean swell of 1.2m 8s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Sep) | 3.5ft (1.0m) | 10s |
| Afternoon (30 Sep) | 3.5ft (1.0m) | 10s |
| Evening (30 Sep) | 2.5ft (0.7m) | 9s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Wed afternoon. Warm (max 28°C on Wed afternoon, min 24°C on Fri night). Wind will be generally light. | |||||||||||||||||||||
Wed 30 | Thursday 1 | Friday 2 | |||||||||||||||||||
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) | W 10 | W 10 | WSW 10 | W 9 | WSW 8 | WSW 8 | W 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | N 9 | N 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 200 | 212 | 169 | 78 | 51 | 49 | 30 | 47 | 53 | 53 | 51 | 47 | 56 | 85 | 109 | 105 | 113 | 110 | 110 | 106 | 106 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | off | off | off | off | off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off |
High Tide | 2:14PM0.43m | 6:48AM0.67m | 8:28AM0.67m | ||||||||||||||||||
Low Tide | 12:32PM0.43m | 10:11PM0.07m | 10:49PM0.09m | ||||||||||||||||||
 |  | |  | | |  |  |  | | | |  |  | | | | | | | | |
 | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — |
 | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:19 | — | — |
mm | — | 2 | 1 | 1 | 1 | 1 | 1 | 1 | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 28 | 26 | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 |
Feels °C | 27 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 | 26 | 25 | 25 | 27 | 27 | 28 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | W 9 | WSW 8 | E 8 | E 14 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | N 9 | N 9 |
| kJ | 196 | 193 | 164 | 78 | 51 | 164 | 653 | 47 | 53 | 53 | 51 | 47 | 32 | 85 | 109 | 105 | 113 | 110 | 110 | 106 | 106 |
Swell 2 Height (m) Direction Period (s) | W 10 | W 10 | WSW 10 | E 11 | E 14 | WSW 8 | W 8 | E 13 | E 13 | E 13 | E 13 | NNW 10 | NNW 10 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 8 |
| kJ | 200 | 212 | 169 | 56 | 140 | 49 | 30 | 84 | 84 | 84 | 83 | 37 | 56 | 30 | 29 | 19 | 18 | 18 | 36 | 51 | 51 |
Swell 3 Height (m) Direction Period (s) | E 14 | E 14 | E 13 | E 14 | E 11 | E 14 | SW 14 | SW 14 | NW 10 | NNW 10 | NNW 10 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | SW 12 | SSW 12 | E 12 | E 11 |
| kJ | 253 | 191 | 162 | 91 | 37 | 142 | 51 | 52 | 26 | 39 | 35 | 48 | 45 | 45 | 26 | 44 | 24 | 38 | 29 | 24 | 22 |
Wind waves Height (m) Direction Period (s) | S 6 | — | — | E 8 | E 8 | — | — | E 8 | E 6 | E 6 | E 6 | E 8 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 |
| kJ | 6 | — | — | 169 | 198 | — | — | 187 | 148 | 127 | 128 | 160 | 89 | 89 | 116 | 124 | 116 | 96 | 96 | 96 | 80 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 2 | 0 | 2 | 0 | 2 | 0 | 2 | 2 | 2 | 0 | 0 | 0 | 2 | 2 |
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)
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