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Backdoor Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Backdoor surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Wednesday 22 Apr 2026 HSTForecast update in hr min s Forecast update imminent
Backdoor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Backdoor sea temperature is
24.7° C
(Which is normal for this time of year)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 1AM is: 1.2m 12s primary swell from a North-northeast direction and 1.1m 13s secondary swell from a Northwest direction (forecast issued at 07:00pm April 22). An open ocean swell of 0.6m 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 (23 Apr) | 3.5ft (1.1m) | 11s |
| Afternoon (23 Apr) | 3.5ft (1.0m) | 11s |
| Evening (23 Apr) | 3ft (0.9m) | 10s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 24°C on Wed night, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 22 | Thursday 23 | Friday 24 | Sat 25 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 13 | NW 13 | NNE 12 | NNE 12 | NW 12 | NNE 11 | NNE 11 | NNE 11 | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NE 8 | NE 8 | NE 8 | NE 8 | |
509 | 494 | 399 | 392 | 347 | 270 | 265 | 218 | 202 | 157 | 154 | 154 | 166 | 103 | 133 | 127 | 151 | 165 | 202 | 247 | 256 | 244 | 266 | 314 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 8:32PM0.70m | 9:42PM0.68m | 10:37AM0.28m | 10:36PM0.66m | 11:50AM0.37m | |||||||||||||||||||
Low Tide | 11:55AM0.18m | 6:37AM0.24m | 2:08PM0.25m | 6:21AM0.22m | ||||||||||||||||||||
 |  | | | | | | | | | |  | |  | | | | | | | | | | | |
 | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — |
 | 6:53 | — | — | — | — | — | — | — | 6:53 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | 6:54 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 24 |
26 | 25 | 24 | 24 | 24 | 23 | 24 | 24 | 24 | 23 | 23 | 21 | 21 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | |
Swell 1 Height (m) Direction Period (s) | NNE 12 | NNE 12 | NNE 12 | NNE 12 | NNE 11 | NNE 11 | NNE 11 | NNE 11 | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 9 | NNE 9 | WNW 12 | NNW 12 | NNW 12 | NNW 12 | NW 12 | NE 8 | NE 8 | NW 11 |
 kJ | 433 | 412 | 399 | 392 | 302 | 270 | 265 | 218 | 202 | 157 | 154 | 154 | 166 | 103 | 133 | 127 | 87 | 104 | 99 | 94 | 112 | 244 | 266 | 150 |
Swell 2 Height (m) Direction Period (s) | NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NW 12 | NW 12 | NNW 12 | W 14 | W 13 | W 13 | W 13 | ESE 7 | W 12 | WNW 12 | W 12 | NW 14 | NW 11 | NNW 11 | NNW 13 |
| kJ | 509 | 494 | 382 | 364 | 347 | 260 | 251 | 180 | 180 | 142 | 140 | 90 | 144 | 89 | 89 | 87 | 18 | 75 | 79 | 69 | 103 | 185 | 219 | 120 |
Swell 3 Height (m) Direction Period (s) | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 12 | W 15 | W 15 | W 15 | NNW 11 | NW 11 | NW 11 | NW 11 | NW 11 | ESE 7 | ESE 7 | NNW 15 | W 12 | WNW 12 | WNW 11 | SW 15 |
| kJ | 127 | 125 | 123 | 123 | 121 | 82 | 80 | 78 | 75 | 109 | 109 | 109 | 84 | 60 | 59 | 63 | 30 | 10 | 10 | 84 | 67 | 45 | 40 | 58 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 8 | ENE 4 | E 8 | E 8 | ENE 4 | NE 4 | NE 4 | NE 4 | NE 4 | ENE 4 | NE 4 | E 5 | E 5 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NE 8 | — | ESE 8 | NE 8 |
| kJ | 39 | 39 | 39 | 40 | 7 | 55 | 55 | 13 | 12 | 13 | 20 | 21 | 15 | 24 | 12 | 8 | 151 | 165 | 202 | 247 | 256 | — | 6 | 314 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 28 | 28 | 27 | 24 | 24 | 24 | 24 | 24 | 26 | 28 | 24 | 26 | 24 | 24 | 2 | 2 | 2 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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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.
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