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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 am Saturday 25 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
24.9° C
(Which is normal for this time of year)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 1PM is: 1.6m 8s primary swell from a Northeast direction and 0.9m 11s secondary swell from a Northwest direction, 0.6m 13s secondary swell from a North-northwest direction (forecast issued at 07:00am April 25). The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | 5.5ft (1.7m) | 8s |
| Afternoon (25 Apr) | 5ft (1.5m) | 8s |
| Evening (25 Apr) | 3.5ft (1.0m) | 13s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Warm (max 25°C on Mon afternoon, min 22°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tue 28 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NE 8 | NE 8 | NE 8 | NE 8 | NW 13 | NW 13 | NW 12 | NE 8 | NW 12 | NW 12 | NW 12 | NW 12 | NE 8 | NE 8 | NNW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | |
361 | 361 | 371 | 304 | 336 | 326 | 292 | 291 | 287 | 336 | 278 | 264 | 250 | 246 | 215 | 172 | 172 | 169 | 166 | 115 | 110 | 106 | 106 | 84 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | cross-off | |
High Tide | 11:50AM0.37m | 11:16PM0.64m | 12:32PM0.46m | 11:48PM0.60m | 1:08PM0.54m | 00:14AM0.56m | ||||||||||||||||||
Low Tide | 6:21AM0.22m | 4:11PM0.29m | 6:26AM0.19m | 5:34PM0.31m | 6:37AM0.16m | 6:38PM0.32m | ||||||||||||||||||
 |  | | | | | | |  | | | | | | | | | | | | | |  | | |
 | 6:05 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | 6:03 |
 | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:55 | — | — | 6:55 |
— | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | |
Temp °C | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 22 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 25 | 24 | 23 | 23 | 23 |
21 | 21 | 22 | 23 | 23 | 22 | 22 | 21 | 22 | 22 | 23 | 23 | 23 | 22 | 23 | 22 | 23 | 22 | 23 | 24 | 23 | 22 | 21 | 21 | |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 11 | NNW 11 | NW 11 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NNW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NE 7 | NW 10 | NW 10 |
 kJ | 112 | 185 | 219 | 150 | 336 | 326 | 292 | 282 | 287 | 336 | 278 | 264 | 250 | 246 | 215 | 172 | 172 | 169 | 166 | 115 | 110 | 71 | 106 | 84 |
Swell 2 Height (m) Direction Period (s) | NW 14 | WNW 12 | WNW 11 | NNW 13 | SW 15 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SSW 14 | SW 14 | SW 14 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | NE 9 | NW 10 | SW 13 | SW 13 |
| kJ | 103 | 45 | 40 | 120 | 60 | 61 | 60 | 56 | 54 | 54 | 82 | 103 | 102 | 80 | 51 | 49 | 46 | 46 | 45 | 44 | 21 | 106 | 44 | 43 |
Swell 3 Height (m) Direction Period (s) | W 12 | SW 15 | SW 15 | SW 15 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | NNE 10 | ESE 8 | NE 10 | NE 9 | NE 9 | NE 9 | SW 13 | NE 8 | NE 9 | NE 8 |
| kJ | 67 | 59 | 36 | 59 | 23 | 22 | 22 | 20 | 17 | 8 | 7 | 7 | 7 | 7 | 10 | 6 | 24 | 22 | 22 | 22 | 44 | 18 | 21 | 18 |
Wind waves Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | E 8 | ENE 7 | ENE 7 |
| kJ | 361 | 361 | 371 | 304 | 251 | 239 | 239 | 291 | 262 | 262 | 215 | 210 | 210 | 215 | 248 | 242 | 199 | 193 | 193 | 199 | 193 | 111 | 172 | 188 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 24 | 24 | 24 | 28 | 29 | 26 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 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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