Backdoor Surf Break

Lat Long: 21.67° N 158.05° W

Backdoor Surf Forecast and Surf Report

Issued: 1 pm 02 Nov 2026 (local time)

Forecast update in  hr  min

Today's Backdoor sea temperature is
26.2°C
0.2° 

Backdoor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Backdoor surf forecast from 2 Nov 2026:

  • Best quality surf: No days rated 1★ or higher at Backdoor in the next 16 days. The closest to surfable is Wednesday 11 Nov, 8PM (local time) – 16ft (5.0m), 17s period, NNW swell with cross-shore winds.
  • Most powerful swell: Wednesday 11 Nov, 8PM (local time) - 16ft (5.0m), 17s period, NNW swell with 13,267 kJ wave energy.
  • Next surfable swell (1★+): None forecast at Backdoor before Wednesday 18 Nov. Conditions stay below 1★ throughout, with swell peaking at 16ft (5.0m), 17s on Wednesday 11 Nov.

Best Forecast Surf Conditions for Backdoor this week:

The most powerful waves expected at Backdoor in the next 16 days are 5.0m 17s and forecast to arrive on Wednesday (Nov 11) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Thursday (Nov 05) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Wed 11th Nov)16ft (5.0m) 17s

Table - best surf conditions forecast for Backdoor over the next 16 days.


Short Range Forecast

Light rain (total 6mm), mostly falling on Mon night. Warm (max 25°C on Mon afternoon, min 24°C on Mon night). Mainly fresh winds.

Days 5-7 Weather Summary

Moderate rain (total 10mm), heaviest on Thu afternoon. Warm (max 25°C on Thu afternoon, min 24°C on Thu afternoon). Mainly fresh winds.

Mon
2
Tuesday
3
Wednesday
4
Thursday
5
Friday
6
Saturday
7
Sunday
8
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
2
1
2
0
1
3
3
2
2
2
2
2
2
2
2
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
NNW
14
1.9
NNW
13
1.7
NNW
13
1.6
NNW
12
2.2
NE
8
1
NNW
11
0.7
NNW
21
2.1
NNW
19
2.5
NNW
16
2.5
NNW
16
2.2
NW
15
1.9
NNW
14
1.8
NW
14
1.7
NNW
13
2
NNW
13
1.9
NNW
13
2
NNW
12
2
NNW
12
1.9
NNW
12
1.6
NNW
11
Wave Graph
Metric surfscale
Energy kJ
1759
1283
958
727
558
268
404
3195
3726
2986
1956
1447
1249
1045
1329
1162
1117
1158
953
592
Wind (km/h)
35
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
E
35
ENE
35
ENE
35
ENE
30
ENE
35
NE
35
ENE
30
ENE
35
ENE
30
ENE
30
ENE
30
ENE
35
ENE
Wind State
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
11:28PM0.37m
10:38AM0.63m
00:13AM0.47m
11:13AM0.59m
00:50AM0.56m
11:43AM0.54m
1:24AM0.64m
12:08PM0.50m
1:56AM0.71m
12:30PM0.46m
2:28AM0.75m
12:50PM0.42m
3:00AM0.77m
Low Tide
5:46PM0.22m
3:34AM0.31m
5:53PM0.18m
5:11AM0.33m
6:06PM0.15m
6:23AM0.34m
6:22PM0.11m
7:23AM0.34m
6:40PM0.08m
8:17AM0.34m
6:59PM0.06m
9:07AM0.34m
7:21PM0.05m
part cloud
rain showers
rain showers
rain showers
rain showers
clear
clear
part cloud
clear
rain showers
rain showers
rain showers
rain showers
rain showers
part cloud
part cloud
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
6:35
—
—
6:37
—
—
6:37
—
—
6:37
—
—
6:37
—
—
6:39
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:54
—
—
5:53
—
—
5:53
—
—
5:52
—
—
5:52
—
—
5:52
—
—
5:52
—
 mm
—
1
1
2
2
—
—
—
—
2
4
1
1
2
—
—
—
—
—
—
Temp °C
25
25
24
24
24
25
25
25
25
25
24
25
25
24
25
25
24
25
25
24
Feels °C
21
21
21
21
21
22
22
23
23
23
21
23
23
21
22
21
21
22
22
20
  • 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
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Quick surf report for Backdoor:

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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 16 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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