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Banzai Pipeline and Backdoor Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Banzai Pipeline and Backdoor surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Saturday 18 Apr 2026 HSTForecast update in hr min s Forecast update imminent
Banzai Pipeline and Backdoor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Banzai Pipeline and Backdoor sea temperature is
24.5° C
(Which is normal for this time of year)How big are the waves at Banzai Pipeline and Backdoor today?
The current surf forecast for Banzai Pipeline and Backdoor at 4AM is: 0.5m 13s primary swell from a West direction and 0.4m 11s secondary swell from a Northwest direction (forecast issued at 01:00am April 18). An open ocean swell of 1.0m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | 1.5ft (0.4m) | 12s |
| Afternoon (18 Apr) | 1.5ft (0.5m) | 12s |
| Evening (18 Apr) | 1.5ft (0.5m) | 11s |
Table - waves today at Banzai Pipeline and Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 18 | Sunday 19 | Monday 20 | ||||||||||||||||||||||
| 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 | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 86 | 86 | 85 | 53 | 52 | 72 | 69 | 63 | 60 | 77 | 46 | 44 | 61 | 106 | 96 | 90 | 89 | 89 | 86 | 77 | 58 | 57 | 57 | 40 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | cross- off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross- off |
High Tide / height (m) | 1:59AM 0.46 | 4:09PM 0.79 | 2:12AM 0.42 | 5:01PM 0.78 | 1:56AM 0.39 | 6:01PM 0.76 | ||||||||||||||||||
Low Tide / height (m) | 9:46PM 0.34 | 8:32AM 0.00 | 10:53PM 0.37 | 9:02AM -0.00 | 12:36AM 0.39 | 9:35AM 0.01 | ||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:09 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - |
 | | |  |  |  | |  | | |  | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 23 | 23 | 23 | 25 | 25 | 24 | 23 | 23 | 22 | 22 | 23 | 24 | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 25 | 24 | 24 | 24 |
| Feels °C (?) | 24 | 26 | 22 | 23 | 25 | 27 | 26 | 24 | 24 | 23 | 23 | 23 | 24 | 26 | 27 | 27 | 25 | 25 | 25 | 24 | 27 | 26 | 26 | 27 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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