Backdoor surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 1 am Tuesday 11 Nov 2025 HST
Forecast 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
26.4° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Backdoor this week:

The most powerful waves expected at Backdoor in the next 12 days are 2.5m 13s and forecast to arrive on Tuesday (Nov 11) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Thursday (Nov 13) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Tue 11th Nov)8ft (2.5m) 13s

Table - best surf conditions forecast for Backdoor over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Some drizzle, heaviest during Wed afternoon. Warm (max 25°C on Tue morning, min 24°C on Tue morning). Mainly strong winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 25°C on Fri afternoon, min 23°C on Sat night). Mainly fresh winds.

Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
2
1
1
1
1
0
2
0
0
0
0
1
1
2
1
1
1
1
1
1
Swell
Height Map
Wave Height (m) & direction (?)
2.5
NNE
3
NE
3
NE
3
NE
3.5
NE
3
NE
1.1
NW
3
NE
0.8
NNW
0.7
NW
0.6
NNW
0.3
NW
0.5
NW
0.8
NW
1.1
NW
1.1
NW
1.1
NW
1.1
NW
1.1
NW
0.9
NW
0.8
NW
Period(s) (?)13999101014913121215171615141413131212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)20881283122016421915185246514672121499650147366565513471380363240161
Wind
(km/h)
35
ENE
35
ENE
35
ENE
40
ENE
40
ENE
35
ENE
40
ENE
35
ENE
30
E
30
ENE
25
ENE
25
E
20
E
25
ENE
25
ENE
25
E
25
E
25
E
25
E
25
E
15
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
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
/ height (m)
8:26AM
0.68
9:59PM
0.26
9:23AM
0.64
11:37PM
0.36
10:07AM
0.60
12:13AM
0.45
10:42AM
0.56
12:44AM
0.54
11:10AM
0.52
1:12AM
0.61
11:35AM
0.48
1:39AM
0.67
11:58AM
0.44
2:07AM
0.72
Low Tide
/ height (m)
5:54PM
0.24
11:58PM
0.26
5:33PM
0.22
2:46AM
0.33
5:38PM
0.19
4:43AM
0.37
5:48PM
0.16
6:04AM
0.37
6:01PM
0.14
7:07AM
0.37
6:16PM
0.11
8:01AM
0.36
6:34PM
0.08
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Sunrise6:41--6:41--6:41--6:41--6:43--6:43--6:43--
Sunset-5:51--5:50--5:50--5:50--5:49--5:49--5:49-
part cloud
part cloud
clear
clear
rain showers
clear
cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
mod rain
Rain (mm)
----1---------------6
Temp. °C252524242524252524242524252524252524252525
Feels °C (?)202019202120212120212222242423242323242325
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Quick surf report for Backdoor:

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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.


Information about the Backdoor Surf forecast

The above surf forecast table for Backdoor provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Backdoor can be found by selecting the local surf guide option on the grey menu. Our Backdoor surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Backdoor) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Backdoor may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Backdoor is 19 km (12 miles) from Wahiawa. If you plan a vacation in Oahu, look for hotels and other accommodation in Wahiawa. Wahiawa has rooms for a wide range of budgets as well as car hire and transport links.

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