Duds Reef Surf Break

Lat Long: 21.31° N 158.01° W

Issued: 1 am 03 Jul 2026 (local time)

Forecast update in  hr  min

Today's Duds Reef sea temperature is
26.5° C

Slightly warmer than usual

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 Jul 2026:

  • Most powerful swell: Saturday 4 Jul, 8PM (local time) - 3ft (0.9m), 20s period, SSW swell with 634 kJ wave energy.

Best Forecast Surf Conditions for Duds Reef this week:

The most powerful waves expected at Duds Reef in the next 16 days are 0.9m 20s and forecast to arrive on Saturday (Jul 04) 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 0.4m 14s period and expected on Friday (Jul 10) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Sat 4th Jul)3ft (0.9m) 20s

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


Updates in  hr  min  s Forecast update imminent

Alright, I’ve looked over what’s on offer for the whole period, and to be honest, mate, it’s not looking like a stretch we’ll be telling stories about. We’ve got a long, run of poor conditions at Duds Reef. The whole 16-day forecast is a write-off, with every single session marked as poor surf conditions.

Right from the start on Friday, July 3rd, it’s no good. We’ve got a moderate 2ft swell from the SSW, with a very long period of 17 seconds. That sounds promising, but the ENE wind is blowing a strong 16 to 18 mph, straight cross-shore, creating a lumpy cross-chop. The wave energy is moderate. It’s just messy.

That same story rolls on through Saturday and Sunday, July 4th and 5th. The swell picks up a little, hitting 3ft from the SSW and SSE, and those 20-second-plus periods suggest some proper groundswell, but the wind sticks at 18 to 22 mph from the ENE. All cross-shore, all lumpy. It’s frustrating.

By Monday, July 6th, we’re still on that 3ft SSW swell, but the period drops to 15-16 seconds. Still, with the fresh breeze howling, it’s just choppy. That pattern holds for the next few days into the first week—cross-shore wind and poor quality. On Wednesday, July 8th, the swell direction swings around to the east, and the height lifts to 5ft, but look at that period: a weak 8 seconds. That’s short-period wind swell, and with the wind still cross, it’s a total mess.

Things don’t get any better for the second week. From July 11th to the 18th, we see the same old story. The swell stays small, between 2ft and 5ft, with periods wandering between a pathetic 7 seconds and a decent 18 seconds. The wind refuses to let up, always blowing a moderate to fresh breeze from the ENE or E, always cross-shore. Every session is the same comment: poor surf conditions. There’s not a single window of clean, offshore wind in the entire forecast.

I hate to say it, but with that persistent cross-shore wind, this whole setup looks a lot more interesting for kite surfing than paddle surfing. There’s simply no day where the wind and swell line up for us. A blank run like this is more normal for the area when the trades get stuck in.

Stay patient. Cheers, Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Fri afternoon, min 24°C on Fri night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Mon afternoon, min 23°C on Mon night). Mainly fresh winds.

Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
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
0
0
0
0
0
0
0
0
0
0
0
0
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
SSW
17
0.6
SSW
17
0.7
SSW
16
0.7
S
21
0.8
SSW
20
0.8
SSW
19
0.9
SSW
18
0.9
SSW
18
1
SSW
16
0.9
SSW
16
0.9
SSW
15
0.9
SSW
15
1.6
E
8
0.9
SSW
14
1.7
E
7
0.8
SSW
14
1.5
E
7
1.5
E
7
1.6
E
7
1.6
ENE
7
1
ENE
7
Wave Graph
Metric surfscale
Energy kJ
232
216
251
441
512
486
522
510
554
446
397
376
350
341
315
251
251
226
240
232
111
Wind (km/h)
25
ENE
30
ENE
25
ENE
30
ENE
30
ENE
25
ENE
35
ENE
35
ENE
30
ENE
35
ENE
35
ENE
30
ENE
35
ENE
30
ENE
30
ENE
35
ENE
35
ENE
30
ENE
35
ENE
35
ENE
30
ENE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
6:15PM0.69m
6:47AM0.33m
6:43PM0.64m
7:55AM0.37m
7:12PM0.58m
9:11AM0.43m
7:44PM0.51m
10:27AM0.50m
8:20PM0.44m
11:34AM0.59m
9:13PM0.36m
12:32PM0.68m
10:39PM0.30m
Low Tide
10:54AM0.13m
1:32AM0.15m
11:37AM0.19m
1:59AM0.13m
12:32PM0.26m
2:29AM0.12m
1:54PM0.33m
3:02AM0.10m
3:59PM0.36m
3:40AM0.08m
6:29PM0.34m
4:26AM0.06m
8:13PM0.28m
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
5:54
5:54
5:56
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:17
7:17
7:17
7:17
7:17
7:17
7:17
 mm
Temp °C
26
27
25
26
26
25
25
26
24
25
26
24
25
26
24
26
26
24
26
26
24
Feels °C
24
24
24
24
23
23
22
23
22
21
22
21
21
22
21
23
22
22
23
22
22
Swell 1
Height (m)
Direction
Period (s)
0.6
SSW
17
0.6
SSW
17
0.7
SSW
16
0.8
SSW
16
0.8
SSW
20
0.8
SSW
19
0.9
SSW
18
0.9
SSW
18
1
SSW
16
0.9
SSW
16
0.9
SSW
15
0.9
SSW
15
0.9
SSW
14
0.9
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
SSW
13
0.7
SSW
13
0.6
S
12
0.6
S
12
1
ENE
7
Energy kJ
232
216
226
280
512
486
522
510
554
446
397
376
350
341
254
243
187
178
112
110
111
Swell 2
Height (m)
Direction
Period (s)
0.6
SSW
13
0.6
SSW
12
0.4
SSW
12
0.7
S
21
0.6
SSW
15
0.7
SSW
15
0.7
SSW
14
0.5
SW
14
0.3
SSE
10
0.2
SSE
8
0.3
SSE
9
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.3
W
15
0.5
S
12
Energy kJ
114
103
59
441
158
188
183
97
18
7
16
7
7
7
7
7
7
7
6
40
75
Swell 3
Height (m)
Direction
Period (s)
0.4
SE
9
0.4
NW
13
0.5
S
22
0.4
NW
12
0.4
NW
12
0.4
NW
11
0.3
SSE
11
0.3
SSE
11
0.2
SSW
13
0.2
SSE
10
0.1
NW
10
0.1
S
11
0.1
SE
10
0.1
SE
10
0.1
W
20
0.2
S
18
0.2
W
18
0.2
W
17
0.2
SSE
8
0.3
W
14
Energy kJ
20
43
251
37
35
32
22
22
17
9
4
2
4
4
7
25
24
22
6
37
Wind waves
Height (m)
Direction
Period (s)
1.1
E
8
1.1
ENE
8
1.2
ENE
8
1.2
ENE
8
1.2
ENE
8
1.2
E
7
1.3
ENE
8
1.4
ENE
7
1.6
ENE
7
1.5
E
8
1.7
ENE
7
1.6
E
7
1.6
E
8
1.8
ENE
7
1.7
E
7
1.5
E
7
1.5
E
7
1.5
E
7
1.6
E
7
1.6
ENE
7
Energy kJ
145
151
178
178
178
159
196
208
269
258
293
285
300
336
315
251
251
226
240
232
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
3
1
3
3
1
1
1
1
2
2
1
2
2
1
1
1
1
Distance (km)
12
12
21
12
13
21
14
21
144
31
144
145
13
22
144
22
22
21
13
15
27
Best forecast wave conditions in Oahu
Rating
(10 max)
2
2
2
2
3
3
3
3
1
2
2
2
2
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
3
3
3
3
3
2
3
2
2
4
2
2
4
2
1
4
1
2
Header Global
Rating
(10 max)
5
8
5
4
5
5
9
6
7
6
9
7
5
6
9
9
9
6
5
6
6
  • 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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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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