Duds Reef Surf Break

Lat Long: 21.31° N 158.01° W

Duds Reef Surf Forecast and Surf Report

Issued: 7 am 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's Duds Reef sea temperature is
27.2°C
0.2° 

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


Duds Reef surf forecast from 3 Sep 2026:

  • Best quality surf: Monday 7 Sep, 5PM (local time) - 23ft (7.0m), 15s period, SSW swell with cross-onshore winds.
  • Most powerful swell: Monday 7 Sep, 5PM (local time) - 23ft (7.0m), 15s period, SSW swell with 19,527 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 5PM (local time) - 23ft (7.0m), 15s period with SSW swell.

Best Forecast Surf Conditions for Duds Reef this week:

The surf forecast for Duds Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 07) at 5PM. The primary swell is predicted to be 7.0m and 15s period with a secondary swell of 1.8m and 12s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Duds Reef in the next 16 days are 7.0m 15s and forecast to arrive on Monday (Sep 07) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 10s period and expected on Tuesday (Sep 08) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Mon 7th Sep)23ft (7.0m) 15s
Best Surf 5PM (Mon 7th Sep)23ft (7.0m) 15s
Most Powerful 5PM (Mon 7th Sep)23ft (7.0m) 15s

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


The Lowdown

G’day, this is Rusty. Let me break down what’s coming for Duds Reef over the next couple of weeks. The water temp is sitting right around 81°F right now, which is about average for this time of year – nothing out of the ordinary.

The early part of the period is pretty rough. We’ve got a few days of nothing much happening. The surf is poor, the wind is a fresh cross-shore messing everything up, and the swell just isn’t cooperating. Thursday the 3rd and Friday the 4th are write-offs. Saturday the 5th is marginal at best, and Sunday the 6th is still messy with a cross-onshore wind and some rain around. Things stay below par through Monday the 7th, even though the energy is starting to build – the wind is strong and cross-shore, and the swell is just too unruly.

Now, Monday the 7th afternoon is a bit of a weird one. The swell is predicted to be way too big for this break – we’re talking 23 feet from the SSW with a massive combined energy of 23426 – that’s serious power. But the wind is howling from the ESE at 28 mph, strong cross-onshore and messy. This setup is more for kite surfers than paddle surfers, honestly. Not one for the average surfer.

Tuesday the 8th and Wednesday the 9th are still poor to marginal, with light cross-onshore breezes and small swell. Thursday the 10th is a write-off too with fresh cross-shore wind. Things start to look a little more hopeful on Friday the 11th and Saturday the 12th, with some moderate cross-shore winds and a bit of a bump in swell, but it’s still not clean.

The best bet for a paddle is shaping up for Sunday the 13th morning. We’ve got a clean cross-off wind from the NE at 9 mph, 6 feet swell from the E with a 9-second period, and combined energy of 620 (moderate energy). The conditions are clean and the surf is looking very good. This is the standout window for Duds Reef. Crowds are possible here, so get in early.

Monday the 14th sees light offshore winds and a 7 to 8 feet swell from the ENE – that’s getting a bit big for beginners, but for the experienced crew it’s worth a look. The wind is light, so it should be clean.

Then we get a real gem on Tuesday the 15th morning. Glassy conditions (wind from SSE at 3 mph, flat calm), with a 4 feet swell from the SW but with a 21-second period – that’s a very long period groundswell. The energy is 1486 (strong wave energy). This will be an excellent surf for experienced surfers, but the long period means it’ll break quite straight at a beach break – but Duds Reef is a reef, so it should handle that beautifully. That’s a proper standout session.

The rest of the week from Wednesday the 16th through Friday the 18th drops back to marginal conditions, with moderate cross-shore breezes and smaller swell, so not much to get excited about after that.

Rusty

Short Range Forecast

Mostly dry. Warm (max 27°C on Thu afternoon, min 25°C on Thu morning). Winds decreasing (strong winds from the ENE on Thu afternoon, light winds from the ENE by Sat night).

Days 4-6 Weather Summary

Heavy rain (total 22mm), heaviest during Sun night. Warm (max 28°C on Mon afternoon, min 24°C on Sun night). Winds decreasing (strong winds from the SE on Mon night, light winds from the E by Tue night).

Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
1
1
1
1
1
2
1
2
3
0
!
0
0
1
2
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
E
8
1.8
E
7
1
SSE
12
1.4
S
12
1.4
S
12
1.9
E
14
1.9
E
14
1.9
E
14
1.9
E
13
2
SSW
12
2.2
SSW
13
2.4
SSW
14
3.5
SSW
15
7
SSW
15
3
S
10
1.1
SSW
15
1.1
SSW
14
0.9
SSW
14
0.9
SSW
14
0.9
SSW
13
1.6
E
7
Wave Graph
Metric surfscale
Energy kJ
367
358
293
603
574
1431
1304
1342
1283
1236
1668
2099
5423
19527
1877
512
478
356
336
257
279
Wind (km/h)
40
ENE
35
ENE
30
ENE
35
ENE
35
ENE
25
ENE
30
ENE
30
ENE
25
ENE
30
E
20
E
25
ENE
25
E
40
SE
40
S
20
S
10
S
5
E
10
ESE
25
ENE
25
ENE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross
cross
High Tide
9:11AM0.63m
10:39AM0.65m
11:53AM0.69m
11:42PM0.23m
12:50PM0.73m
00:58AM0.28m
1:37PM0.75m
1:49AM0.35m
2:17PM0.75m
2:33AM0.42m
2:52PM0.72m
3:14AM0.49m
Low Tide
1:48AM0.10m
3:13AM0.11m
8:07PM0.19m
8:24PM0.16m
6:09AM0.09m
8:46PM0.13m
7:12AM0.08m
9:09PM0.11m
8:06AM0.08m
9:31PM0.09m
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
thunderstorm
rain showers
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
clear
clear
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:16
6:16
6:16
6:16
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:44
6:43
6:42
6:40
6:39
 mm
2
5
1
11
2
1
1
Temp °C
26
27
25
26
27
25
27
27
26
27
26
26
27
28
27
27
28
27
28
29
26
Feels °C
22
24
22
22
24
23
25
24
26
26
26
26
26
26
23
28
30
31
30
28
26
  • 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
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Duds Reef:

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 Duds Reef 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 Duds Reef Surf forecast

The above surf forecast table for Duds Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Duds Reef can be found by selecting the local surf guide option on the grey menu. Our Duds Reef 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 (Duds Reef) 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 Duds Reef 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.

Duds Reef is 0 km (0 miles) from 'Ewa Beach. If you plan a vacation in Oahu, look for hotels and other accommodation in 'Ewa Beach. 'Ewa Beach has rooms for a wide range of budgets as well as car hire and transport links.

Nearest locationNearest