
Surf Forecasts:
Duds Reef surf forecast from 7 Jul 2026:
- Most powerful swell: Saturday 11 Jul, 11PM (local time) - 3ft (0.9m), 18s period, SW swell with 444 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 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 0.5m 15s period and expected on Monday (Jul 13) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Sat 11th Jul) | 3ft (0.9m) 18s |
Table - best surf conditions forecast for Duds Reef over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, Rusty here. Let's have a look at what Duds Reef is offering over the next couple of weeks.
Honestly, we're staring down a pretty grim stretch for Duds Reef. This is a reef break that's fairly consistent, and it opens up to swells from the SSE, but for the next 16 days, the winds are just a total killer. From Tuesday, July 7th, all the way through to Tuesday, July 21st, it's a relentless run of cross-shore breezes, mostly from the ENE, with speeds between 16 mph and 25 mph. That's going to keep things lumpy, choppy, and just plain messy. There's really nothing worth paddling out for in that whole first two-week block. The swell energy is moderate, hitting values like 795 (moderate), but it doesn't matter when the wind's ruining the surface.
The wave comment for every single one of those sessions is "poor surf conditions," so that tells you everything. The swell direction is often swinging between E and SSW, but it's never aligning right with the wind to give us anything clean. Expect a blank run of about 13 days with no real surf on offer.
Now, there is a tiny glimmer on the very last day of the window. On Wednesday, July 22nd, we see a slight change. The swell height picks up to 3 ft from the SW with a period of 17 seconds. That is a proper long-period groundswell. The combined energy jumps up to 1022, pushing into the strong range. But here's the catch—the wind is still a fresh 19 mph cross-shore from the ENE. The conditions are described as "marginal" at best, with the same lumpy cross-chop. It's still not good for a paddle session. Given the size is only about 3 ft, it's not a big-wave day, but the long period will make it a bit more powerful on the reef. Anyone who charges it on that day will have to battle the bumpy surface for a few turns.
To sum it up: for the next 16 days, forget the surfboard at Duds Reef. From July 7th to July 21st, it's a total write-off. And that last day on July 22nd is just a tease—still too windy for anything decent. A setup like this, with that constant cross-shore wind and moderate swell, would honestly be more interesting for kite surfing than paddle surfing.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Tue morning, min 24°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Fri afternoon, min 24°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Mon 13 | |||||||||||||||
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) | SSW 15 | ENE 8 | ENE 8 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 7 | E 8 | ENE 7 | SSW 19 | E 8 | E 8 | SW 17 | SW 16 | SSW 16 | SSW 16 | SW 15 | SW 14 |
Wave Graph | |||||||||||||||||||||
376 | 438 | 336 | 397 | 303 | 245 | 315 | 265 | 265 | 285 | 258 | 286 | 259 | 387 | 316 | 439 | 376 | 441 | 425 | 322 | 305 | |
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 | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 10:27AM0.50m | 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 | ||||||||
Low Tide | 3:02AM0.10m | 3:59PM0.36m | 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 | ||||||||
— | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | |
7:17 | — | 7:17 | — | — | 7:17 | — | — | 7:17 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 25 | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 27 | 25 | 26 | 27 |
Feels °C | 22 | 22 | 22 | 21 | 23 | 22 | 21 | 22 | 23 | 24 | 24 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 23 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 14 | 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 | SW 16 | SSW 16 | SSW 16 | SW 15 | SW 14 |
376 | 350 | 336 | 254 | 243 | 187 | 178 | 112 | 110 | 75 | 71 | 41 | 251 | 263 | 316 | 439 | 376 | 441 | 425 | 322 | 305 | |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSE 8 | SE 10 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | W 14 | W 13 | W 14 | SW 20 | S 11 | S 12 | S 12 | S 11 | SSE 11 | SSE 12 | SSE 12 | W 16 | W 16 |
7 | 7 | 4 | 8 | 7 | 7 | 7 | 6 | 33 | 13 | 36 | 107 | 64 | 44 | 44 | 40 | 43 | 47 | 47 | 81 | 77 | |
Swell 3 Height (m) Direction Period (s) | NW 9 | NW 9 | SE 8 | — | W 17 | S 18 | W 15 | S 16 | SE 8 | S 15 | SSW 21 | S 13 | W 13 | W 14 | W 13 | W 13 | W 12 | W 12 | W 12 | SSE 12 | SSE 11 |
3 | 3 | 3 | — | 6 | 6 | 17 | 21 | 2 | 17 | 45 | 31 | 55 | 63 | 54 | 54 | 27 | 26 | 47 | 46 | 25 | |
Wind waves Height (m) Direction Period (s) | E 7 | ENE 8 | ENE 8 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 7 | E 8 | ENE 7 | ENE 7 | E 8 | E 8 | E 7 | ENE 8 | E 8 | E 8 | E 8 | E 8 |
285 | 438 | 333 | 397 | 303 | 245 | 315 | 265 | 265 | 285 | 258 | 286 | 259 | 387 | 294 | 246 | 232 | 324 | 341 | 295 | 301 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 24 | 144 | 165 | 21 | 21 | 28 | 21 | 22 | 22 | 13 | 14 | 144 | 15 | 24 | 144 | 12 | 12 | 14 | 21 | 12 | 144 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











