Banzai Pipeline and Backdoor surf break

Banzai Pipeline and Backdoor surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 1 am Thursday 18 Dec 2025 HST
Forecast 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
25.6° C
(Which is slightly warmer than usual)
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How big are the waves at Banzai Pipeline and Backdoor today?

The current surf forecast for Banzai Pipeline and Backdoor at 4AM is: 1.4m 12s primary swell from a West-northwest direction and 1.1m 15s secondary swell from a North-northwest direction, 0.6m 5s secondary swell from a West-southwest direction (forecast issued at 01:00am December 18). The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (18 Dec)6.5ft (2.0m)14s
Afternoon (18 Dec)7ft (2.2m)13s
Evening (18 Dec)6.5ft (2.0m)12s

Table - waves today at Banzai Pipeline and Backdoor. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent
Thursday
18
Friday
19
Saturday
20
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
2
3
3
3
3
2
2
3
3
3
3
4
3
3
3
3
3
3
3
4
4
4
4
4
Swell
Height Map
Wave Height (m) & direction (?)
1.5
WNW
1.6
WNW
1.3
NNW
2
NW
1.8
NNW
2.2
NNW
2
NNW
2
NNW
2
NNW
1.8
NNW
2
NNW
2
NNW
1.9
NNW
1.9
NNW
1.9
NNW
1.8
NNW
1.8
NNW
1.8
N
1.8
N
1.8
N
1.7
N
1.7
N
2
N
2
N
Period(s) (?)121215141313131212121212111111111111111111111313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6057136561450110615971259116411089441084106691787485882182181981980469569513701305
Wind
(km/h)
15
SW
15
SSW
15
SSW
10
SSW
15
SSW
15
SW
15
SW
10
SSW
10
SSW
10
SSW
5
SSW
10
SSE
5
S
5
SW
0
SE
5
ENE
5
ESE
5
SE
5
ESE
5
ESE
10
E
10
ENE
10
ENE
15
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscross-
off
glassglassglassglassoffglassglassoffoffcross-
off
cross-
off
off
High Tide
/ height (m)
2:34AM
0.77
11:55AM
0.35
3:06AM
0.78
12:30PM
0.34
3:39AM
0.78
1:01PM
0.34
Low Tide
/ height (m)
10:22AM
0.34
7:01PM
0.03
10:51AM
0.34
7:33PM
0.02
11:25AM
0.34
Thursday
18
Friday
19
Saturday
20
Sunrise---7:03-------7:03-------7:05----
Sunset------5:52-------5:52-------5:53-
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
cloud
cloud
cloud
clear
thunderstorm
thunderstorm
cloud
cloud
thunderstorm
thunderstorm
clear
clear
thunderstorm
thunderstorm
part cloud
Rain (mm)
1111-11-1----11--11--22-
Temp. °C242323232526252424232323252525242423232325252524
Feels °C (?)252424252626252626252625282829272726252527272625
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Latest Updates

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 Banzai Pipeline and 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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