Duds Reef Surf Break

Lat Long: 21.31° N 158.01° W

Duds Reef Surf Forecast and Surf Report

Issued: 1 am 11 Jul 2026 (local time)

Forecast update in  hr  min

Today's Duds Reef sea temperature is
26.4° C
0.3° 

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 11 Jul 2026:

  • Best quality surf: Tuesday 14 Jul, 2AM (local time) - 2.5ft (0.8m), 14s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Saturday 11 Jul, 11PM (local time) - 3ft (0.9m), 18s period, SW swell with 444 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 14 Jul, 2AM (local time) - 2.5ft (0.8m), 14s 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 Tuesday (Jul 14) at 2AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 1.2m and 8s. Another secondary swell of 1.5m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Duds Reef in the next 16 days are 0.9m 18s and forecast to arrive on Saturday (Jul 11) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 15s period and expected on Wednesday (Jul 15) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 14th Jul)2.5ft (0.8m) 14s
Best Surf 2AM (Tue 14th Jul)2.5ft (0.8m) 14s
Most Powerful11PM (Sat 11th Jul)3ft (0.9m) 18s

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


Alright, Rusty here. Let's have a look at what's on the cards.

Honestly, mate, this is a tough one. We're looking at a 16-day run for Duds Reef, and I gotta tell ya, for the vast majority of it, it's just not happening. There's a big ol' gap of flat, grotty conditions stretching from now, July 11, all the way through to the 22nd of July. That's nearly two weeks of onshore crud, cross-shore junk, and barely any energy worth paddling for. The swell is there, but it's small – mostly between 2ft and 3ft – and the wind is relentless. A fresh breeze from the ENE just tears it apart, leaving lumpy, cross-chop chaos. The combined energy is mostly in the moderate range (543 to 688), but with that wind, it's just messy. The water temp is about average for the time of year at 80°, so at least you won't freeze while you're getting frustrated.

For a reef break, we're looking at a very long-period SW groundswell (18 seconds!) on the first Saturday, but with a 22 mph cross-wind, that long-period potential just gets chopped to pieces. It's a real shame.

The first chance you'd even think about getting wet is on the 22nd of July Wednesday afternoon. The data calls it "marginal" – 3ft from the south, moderate breeze making cross-onshore chop. The energy is moderate (530), but it's not good. That theme sticks through the 24th, with the morning of the 24th also showing as "marginal" with a 2ft SSW swell but a very long 17-second period. Still, with a moderate cross-shore breeze, there's just no clean face to ride.

There are no standouts here. Nothing rallies. The winds never go offshore, the swell never cleans up. For an intermediate reef like Duds, you need that offshore wind or at least light conditions, and you just don't get it. It's honestly more of a kite-surfing setup for most of this period if the wind holds. But for a standard paddle surfer? Save your energy. The forecasts can change, but right now, it's a long blank run.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Sat morning, min 23°C on Mon night). Winds decreasing (fresh winds from the ENE on Sun afternoon, light winds from the NE by Mon night).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Tue afternoon. Warm (max 27°C on Wed afternoon, min 24°C on Tue morning). Winds increasing (light winds from the E on Wed night, fresh winds from the ENE by Thu night).

Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
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
0
0
0
0
0
3
0
0
1
0
0
1
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SW
18
0.7
SW
18
0.9
SW
17
0.9
SW
16
0.9
SW
16
0.9
SW
16
0.9
SW
15
0.9
SW
15
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
SW
13
0.7
SW
13
0.8
SSW
14
0.9
SSW
16
0.7
SSW
13
0.7
SSW
13
0.8
SSW
14
0.6
SSW
16
0.6
SSW
16
0.6
SSW
14
Wave Graph
Metric surfscale
Energy kJ
260
316
439
376
367
353
326
309
261
239
232
170
162
257
387
149
149
264
171
196
145
Wind (km/h)
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
25
ENE
30
ENE
30
ENE
15
NE
20
ENE
25
ENE
15
ENE
15
ESE
15
ESE
10
E
25
ENE
30
ENE
35
ENE
35
ENE
35
ENE
30
ENE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
cross
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
High Tide
2:13PM0.82m
1:27AM0.25m
2:59PM0.86m
2:28AM0.26m
3:43PM0.88m
3:23AM0.28m
4:25PM0.87m
4:16AM0.31m
5:04PM0.83m
5:11AM0.34m
5:41PM0.77m
6:08AM0.38m
6:14PM0.69m
Low Tide
9:50PM0.18m
7:09AM-0.02m
10:28PM0.15m
8:02AM-0.03m
11:04PM0.13m
8:53AM-0.02m
11:38PM0.11m
9:42AM0.01m
00:12AM0.11m
10:31AM0.06m
00:44AM0.11m
11:21AM0.14m
1:14AM0.10m
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
rain showers
clear
clear
rain showers
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:56
5:58
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:16
7:16
7:16
7:16
7:16
7:15
7:15
 mm
1
1
Temp °C
26
26
25
26
26
25
26
26
24
26
26
25
26
27
25
27
27
25
26
26
25
Feels °C
23
23
24
23
23
23
23
23
23
25
24
25
26
27
26
26
25
24
23
23
24
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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