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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 Sunday 12 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
23.7° C
(Which is slightly cooler than normal)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 3AM is: 1.4m 11s primary swell from a Northwest direction (forecast issued at 07:00pm April 12). An open ocean swell of 0.6m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Apr) | 4.5ft (1.3m) | 11s |
| Afternoon (13 Apr) | 4ft (1.2m) | 10s |
| Evening (13 Apr) | 3.5ft (1.1m) | 10s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 553 | 524 | 515 | 462 | 462 | 406 | 384 | 302 | 271 | 271 | 261 | 192 | 136 | 136 | 90 | 104 | 116 | 75 | 96 | 94 | 159 | 144 | 117 | 96 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | glass | off | cross- off | glass | cross- off | off | cross- off | cross | cross- off | off | cross- off | cross- off | glass | glass | glass | on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | ||||||||||||||||||||||||
Low Tide / height (m) | ||||||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - | 6:11 | - | - |
| Sunset | 6:50 | - | - | - | - | - | - | - | 6:51 | - | - | - | - | - | - | - | 6:51 | - | - | - | - | - | - | - |
 |  |  | | |  |  |  | |  | | | | |  | | | | | | | | | | |
Rain (mm) | 6 | 6 | 5 | 3 | 5 | 11 | 5 | - | - | - | - | - | - | - | - | 1 | 1 | 3 | 3 | 1 | - | - | - | - |
| Temp. °C | 22 | 21 | 21 | 20 | 21 | 20 | 22 | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 24 | 24 | 23 | 22 | 21 | 22 | 22 | 23 | 24 | 24 |
| Feels °C (?) | 25 | 24 | 23 | 21 | 24 | 22 | 23 | 26 | 24 | 24 | 24 | 25 | 25 | 25 | 27 | 27 | 25 | 24 | 23 | 24 | 24 | 25 | 26 | 26 |
- 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.
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