
Surf Forecasts:
Duds Reef surf forecast from 8 Jul 2026:
- Most powerful swell: Sunday 12 Jul, 8AM (local time) - 3ft (0.9m), 17s period, SSW swell with 481 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 17s and forecast to arrive on Sunday (Jul 12) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 16s period and expected on Wednesday (Jul 15) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sun 12th Jul) | 3ft (0.9m) 17s |
Table - best surf conditions forecast for Duds Reef over the next 16 days.
Alright crew, Rusty here. Let’s break down Duds Reef for the next couple of weeks. Gotta be honest, it’s looking pretty grim. Persistent cross-shore winds and lumpy conditions are the name of the game, and we’ve got a long stretch of nothing much to get excited about.
The first real chance to surf doesn’t show up until Saturday, July 11th. Before that, from Wednesday the 8th through Friday the 10th, the surf is poor with a fresh cross-shore breeze and lumpy cross-chop. Swell is running between 5ft and 6ft from the east, but with 22 mph winds tearing it up, it’s not worth paddling out. Wave energy is moderate, between 393 and 637.
Saturday the 11th of July finally gives us a tiny window. The morning is still messy, but the afternoon sees a shift. The wind goes cross-offshore from the NE at 19 mph, and the conditions clean right up. Swell is a tiny 2ft from the SW, but with a very long period of 18 seconds. That’s real groundswell, and it’ll have some punch for its size. The combined energy is a moderate 605. It’s a marginal call, but if you’re keen, that afternoon is your best bet for the whole first week.
From Sunday the 12th all the way through to Tuesday the 22nd, it’s back to the same old story. Swell stays small, mostly under 3ft, from the SSW or S, but the wind never gives you a break. It’s almost always a cross-shore from the ENE at 16 to 22 mph, keeping the surface lumpy. Wave energy bumps up around the 19th and 20th of July, hitting a moderate 795, but the conditions are still poor. There’s a slight chance on the morning of Monday, July 20th, with a cleaner look from a NE cross-offshore breeze at 12 mph. Swell is only 3ft from the S with a 14-second period. It’s the best of the second week, but still very marginal.
So the standout – such as it is – is the afternoon of Saturday, July 11th. That’s the only time the wind lines up and the swell has some real length to it. For the rest of the run, you’re battling the wind or waiting on weak, short-period junk. A tough stretch for Duds Reef. Forecasts can change, so don’t lose all hope, but right now it’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Wed morning, min 24°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sun afternoon, min 24°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | E 8 | E 7 | E 8 | ENE 8 | E 8 | ENE 8 | E 7 | E 7 | E 7 | E 8 | E 8 | SW 18 | SW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SW 14 | SW 14 | SSW 14 | SSW 14 |
Wave Graph | |||||||||||||||||||||
337 | 387 | 329 | 395 | 294 | 280 | 285 | 277 | 320 | 328 | 263 | 316 | 439 | 452 | 441 | 425 | 387 | 305 | 293 | 236 | 232 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 8:20PM0.44m | 11:34AM0.59m | 9:13PM0.36m | 12:32PM0.68m | 10:39PM0.30m | 1:24PM0.75m | 00:12AM0.26m | 2:13PM0.82m | 1:27AM0.25m | 2:59PM0.86m | 2:28AM0.26m | 3:43PM0.88m | 3:23AM0.28m | 4:25PM0.87m | |||||||
Low Tide | 3:40AM0.08m | 6:29PM0.34m | 4:26AM0.06m | 8:13PM0.28m | 5:19AM0.03m | 9:08PM0.22m | 6:14AM0.01m | 9:50PM0.18m | 7:09AM-0.02m | 10:28PM0.15m | 8:02AM-0.03m | 11:04PM0.13m | 8:53AM-0.02m | ||||||||
— | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | |
7:17 | — | 7:17 | — | — | 7:17 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 26 | 24 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 24 | 26 | 27 | 25 | 26 | 26 | 24 | 26 | 27 |
Feels °C | 22 | 22 | 22 | 21 | 23 | 23 | 24 | 24 | 24 | 24 | 23 | 24 | 22 | 24 | 25 | 23 | 23 | 23 | 22 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 12 | S 12 | S 12 | S 12 | SSW 11 | SSW 19 | SW 18 | SW 18 | SW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SW 14 | SW 14 | SSW 14 | SSW 14 |
254 | 243 | 187 | 178 | 112 | 110 | 75 | 71 | 41 | 251 | 263 | 316 | 439 | 452 | 441 | 425 | 387 | 305 | 293 | 236 | 232 | |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 6 | SE 8 | W 13 | W 14 | SW 20 | S 11 | S 12 | W 13 | W 13 | SSE 11 | SSE 12 | SSE 12 | W 19 | W 19 | W 18 | W 16 | W 16 |
9 | 7 | 7 | 7 | 3 | 14 | 13 | 36 | 107 | 41 | 44 | 54 | 54 | 43 | 47 | 47 | 113 | 170 | 158 | 198 | 254 | |
Swell 3 Height (m) Direction Period (s) | — | W 17 | S 18 | W 15 | SSE 8 | W 14 | S 15 | SSW 21 | S 13 | W 13 | W 14 | S 12 | S 11 | W 12 | W 12 | W 12 | SSE 12 | SSE 11 | SW 18 | SW 19 | SW 19 |
— | 6 | 6 | 17 | 6 | 33 | 17 | 45 | 31 | 55 | 63 | 43 | 39 | 48 | 47 | 47 | 46 | 25 | 82 | 183 | 93 | |
Wind waves Height (m) Direction Period (s) | E 8 | E 7 | E 8 | ENE 8 | E 8 | ENE 8 | E 7 | E 7 | E 7 | E 8 | E 8 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | ENE 8 | E 8 | E 8 | ENE 7 |
337 | 387 | 329 | 395 | 294 | 280 | 285 | 277 | 320 | 328 | 253 | 246 | 215 | 245 | 266 | 287 | 280 | 257 | 227 | 196 | 228 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 24 | 27 | 22 | 22 | 22 | 13 | 21 | 24 | 21 | 21 | 16 | 12 | 12 | 22 | 12 | 12 | 15 | 12 | 12 | 15 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.











