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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 Thursday 09 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
23.9° C
(Which is normal for this time of year)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 11PM is: 0.7m 11s primary swell from a Northwest direction (forecast issued at 07:00pm April 09). An open ocean swell of 1.0m 8s is not directed at the surf break, a second open ocean swell of 1.1m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Apr) | - | - |
| Afternoon (09 Apr) | 3.5ft (1.0m) | 12s |
| Evening (09 Apr) | 2.5ft (0.8m) | 11s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 09 | Friday 10 | Saturday 11 | Sunday 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 | 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 | 9 | 9 | 10 | 7 | 7 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 198 | 165 | 114 | 114 | 73 | 182 | 152 | 48 | 228 | 159 | 103 | 248 | 561 | 662 | 568 | 584 | 460 | 392 | 341 | 299 | 268 | 240 | 208 | 463 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross | glass | glass | cross- on | on | glass | on | cross- on | on | on | cross- off | glass | glass | cross- on | glass | glass |
High Tide / height (m) | 10:22PM 0.62 | 11:06PM 0.64 | 11:31AM 0.30 | |||||||||||||||||||||
Low Tide / height (m) | 1:23PM 0.24 | 7:23AM 0.25 | ||||||||||||||||||||||
Thursday 09 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:16 | - | - | - | - | - | - | - | 6:16 | - | - | - | - | - | - | - | 6:15 | - | - |
| Sunset | 6:49 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - |
 |  |  | | | |  |  | |  | | | |  | | | | | | |  | | | | |
Rain (mm) | 5 | 8 | 2 | 5 | 1 | 4 | 6 | 6 | 2 | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 2 | 6 |
| Temp. °C | 23 | 23 | 23 | 22 | 23 | 22 | 23 | 24 | 23 | 23 | 23 | 22 | 22 | 22 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 21 | 21 |
| Feels °C (?) | 23 | 22 | 22 | 21 | 22 | 20 | 21 | 22 | 24 | 26 | 26 | 24 | 24 | 25 | 26 | 25 | 25 | 24 | 25 | 26 | 25 | 25 | 24 | 24 |
- 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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