Backdoor surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 7 pm Tuesday 28 Apr 2026 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
24.6° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Backdoor this week:

The surf forecast for Backdoor over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 03) at 5AM. The primary swell is predicted to be 1.2m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Backdoor in the next 16 days are 1.5m 15s and forecast to arrive on Saturday (May 02) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 8s period and expected on Friday (May 01) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 3rd May)4ft (1.2m) 12s
Best Surf 8PM (Mon 4th May)4.5ft (1.4m) 12s
Most Powerful 8AM (Sat 2nd May)5ft (1.5m) 15s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Wed night. Warm (max 24°C on Wed afternoon, min 22°C on Thu morning). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 24°C on Sat morning, min 22°C on Sun night). Wind will be generally light.

Wednesday
29
Thursday
30
Friday
1
Saturday
2
Sunday
3
Monday
4
Tue
5
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
0
0
1
2
2
2
1
1
1
1
1
2
3
2
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.8
NW
12
0.6
NNW
14
0.9
NW
13
1
NW
12
1.1
NW
12
1.2
NNW
11
1.1
NNW
13
1
NNW
12
0.7
NW
18
1
NW
16
1.4
NW
14
1.3
NW
13
1.2
NW
13
1.2
NW
12
1.1
NW
12
1.1
NW
11
0.9
NW
11
1.4
NW
12
1.4
NW
12
1.3
NNW
11
1.3
NNW
11
Wave Graph
Metric surfscale
Energy kJ
221
132
282
287
309
341
402
289
307
462
821
577
473
423
314
268
194
551
561
418
427
Wind (km/h)
25
E
25
ENE
25
ENE
30
ENE
30
ENE
30
ENE
30
E
30
ENE
30
ENE
20
E
25
E
25
E
20
E
15
ENE
20
ENE
15
E
15
ENE
15
ENE
15
E
15
ENE
15
NE
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
High Tide
00:36AM0.52m
2:11PM0.68m
00:56AM0.48m
2:42PM0.72m
1:13AM0.44m
3:13PM0.74m
1:28AM0.41m
3:47PM0.74m
1:36AM0.39m
4:24PM0.73m
1:25AM0.37m
5:05PM0.70m
5:53PM0.68m
Low Tide
7:05AM0.10m
8:23PM0.33m
7:22AM0.08m
9:10PM0.34m
7:41AM0.07m
9:58PM0.35m
8:02AM0.06m
10:51PM0.36m
8:25AM0.06m
00:02AM0.37m
8:50AM0.07m
9:17AM0.08m
clear
clear
clear
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:01
6:00
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
6:57
6:57
6:57
6:58
6:58
6:59
6:59
1
Temp °C
23
23
24
23
23
24
23
24
24
23
24
24
23
24
24
23
24
24
23
24
24
22
20
22
20
20
21
21
21
21
21
23
22
22
24
24
23
24
23
23
25
24
Swell 1
Height (m)
Direction
Period (s)
0.8
NW
12
0.7
NW
12
0.9
NW
13
1
NW
12
1.1
NW
12
1.2
NNW
11
1.1
NNW
13
1
NNW
12
0.9
NNW
11
1
NW
16
1.4
NW
14
1.3
NW
13
1.2
NW
13
1.2
ENE
8
1.2
ENE
8
1.1
NW
11
0.9
NW
11
1.4
NW
12
1.4
NW
12
1.3
NNW
11
1.3
NNW
11
Energy kJ
221
132
282
287
309
341
402
289
223
462
821
577
473
192
187
268
194
551
561
418
427
Swell 2
Height (m)
Direction
Period (s)
0.2
SSW
12
0.6
NNW
14
0.3
NE
9
0.4
NE
9
0.1
SW
11
0.1
S
16
0.1
SW
15
0.3
NW
19
0.7
NW
18
0.8
NNW
12
0.2
S
14
0.2
SSW
14
0.2
SSW
16
1.2
NW
12
1.1
NW
12
0.2
SSW
14
0.6
NW
13
0.3
ESE
9
0.8
ENE
8
0.8
E
8
0.7
E
8
Energy kJ
14
129
14
20
5
5
9
57
307
174
16
20
25
423
314
21
142
16
81
82
63
Swell 3
Height (m)
Direction
Period (s)
0.1
S
15
0.3
NE
10
0.2
SSW
11
0.1
SW
11
0.1
S
12
0.1
SW
11
0.1
S
11
0.2
S
15
0.2
S
16
0.7
NW
18
0.2
SSW
18
0.1
S
18
0.1
SW
16
0.2
SSW
16
0.2
SSW
15
0.2
SSW
19
0.3
ESE
9
0.2
SSW
13
0.3
ESE
9
0.2
N
14
0.2
N
13
Energy kJ
4
15
12
5
3
5
2
17
20
319
30
6
10
25
21
37
16
17
16
14
13
Wind waves
Height (m)
Direction
Period (s)
1.4
ENE
7
1.4
ENE
7
1.3
ENE
7
1.5
ENE
6
1.7
ENE
7
1.7
ENE
7
2
ENE
7
1.9
ENE
8
2
ENE
7
2
ENE
8
1.6
ENE
8
1.6
ENE
8
1.4
ENE
8
1.2
E
8
1.1
E
8
0.9
ENE
8
Energy kJ
193
173
149
140
285
285
394
400
428
502
308
273
251
177
157
109
Nearest Offshore or Glassy
Rating
(10 max)
2
2
1
2
2
2
2
2
2
3
3
3
2
2
2
2
2
3
3
2
2
Distance (km)
2
24
165
24
24
26
24
24
24
2
2
2
2
2
2
2
2
2
0
0
3
Best forecast wave conditions in Oahu
Rating
(10 max)
2
2
2
2
2
3
2
2
3
3
3
2
3
2
2
2
3
3
2
2
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
3
2
2
3
2
2
4
3
3
2
3
2
3
3
3
3
2
2
Header Global
Rating
(10 max)
8
8
6
5
5
6
7
5
5
5
4
5
5
4
7
5
4
5
4
4
4
  • 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
submit an eyeball surf report

Quick surf report for Backdoor:

join our community of surf reporters

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.


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.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest