
Surf Forecasts:
Duds Reef surf forecast from 10 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 5AM (local time) - 2.5ft (0.7m), 17s period, SW 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★+): Wednesday 15 Jul, 5AM (local time) - 2.5ft (0.7m), 17s period with SW 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 Wednesday (Jul 15) at 5AM. The primary swell is predicted to be 0.7m and 17s period with a secondary swell of 1.1m and 7s. 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 1.1m 7s period and expected on Wednesday (Jul 15) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 15th Jul) | 2.5ft (0.7m) 17s |
| Best Surf | 5AM (Wed 15th Jul) | 2.5ft (0.7m) 17s |
| Most Powerful | 11PM (Sat 11th Jul) | 3ft (0.9m) 18s |
Table - best surf conditions forecast for Duds Reef over the next 16 days.
Alright, Rusty here, looking at what we've got.
Duds Reef is a reef break that breaks fairly consistently, but the forecast is a long, bleak run. The combined swell energy is moderate, sitting between 363 and 716 for the first week, but every session has poor surf conditions. The wind is cross-shore and fresh to strong, leaving a lumpy, messy chop. Water temp is 26°, which is about normal for the time of year. The swell is mostly short-period stuff, with a few longer pulses that just don't deliver clean waves.
From Friday the 10th all the way to Wednesday the 23rd, it's a complete blank. Every session is marked as poor. The wind never lets up, the sea is always choppy. That's almost two weeks with nothing worth a paddle.
Finally, on Thursday the 23rd, there's a flicker. It's still only marginal, but the combined energy picks up to 553 in the morning and 599 in the afternoon, with a long 20-second period swell coming from the SSW. The wind is a moderate cross-shore, so not perfect. Then Friday the 24th is the real hope. The wind turns cross-offshore, the swell direction is right for Duds Reef from the SSW, and with a 1.0m swell and an 18-second period, the surface should be clean. The combined energy is at 833, which is solid moderate. The forecast still calls it marginal, so it's not a lock, but it's the best on offer.
You can sometimes see a crowd here, so expect some company. This is one for intermediate surfers; the swell stays under 1.5m, so it's not too big.
Come Saturday the 25th, you get a 1.1m SSW swell, but the wind swings back to a messy cross-shore and the quality drops to poor again.
So, the standout is clear: Friday the 24th of July, afternoon session at Duds Reef. That’s the one. The rest of the window is a write-off.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Sat afternoon, min 24°C on Fri morning). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Mon afternoon, min 24°C on Mon morning). Mainly fresh winds. | ||||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | ENE 7 | ENE 7 | SSW 19 | E 7 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 17 | SW 14 |
Wave Graph | |||||||||||||||||||||
259 | 215 | 269 | 272 | 316 | 439 | 376 | 367 | 353 | 333 | 309 | 261 | 239 | 232 | 261 | 207 | 211 | 314 | 173 | 258 | 214 | |
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 | 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 | 4:16AM0.31m | 5:04PM0.83m | 5:11AM0.34m | 5:41PM0.77m | ||||||||
Low Tide | 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 | 11:38PM0.11m | 9:42AM0.01m | 00:12AM0.11m | 10:31AM0.06m | 00:44AM0.11m | ||||||||
5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | |
— | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 25 | 26 | 27 | 25 | 25 | 26 | 24 | 25 | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 23 | 23 | 24 | 24 | 25 | 23 | 23 | 23 | 22 | 22 | 23 | 22 | 24 | 23 | 23 | 25 | 23 | 24 | 24 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | S 12 | SSW 11 | SSW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | W 15 | W 15 | W 15 | ENE 7 | W 14 | W 14 | SW 14 |
99 | 41 | 251 | 263 | 316 | 439 | 376 | 367 | 353 | 322 | 309 | 261 | 239 | 232 | 298 | 291 | 283 | 62 | 268 | 203 | 214 | |
Swell 2 Height (m) Direction Period (s) | W 14 | SW 20 | S 12 | W 14 | W 13 | W 13 | SSE 13 | SSE 12 | W 12 | SSE 12 | W 18 | W 18 | W 16 | W 16 | SW 13 | SW 13 | SW 14 | SSW 16 | SSW 16 | SSW 17 | W 14 |
36 | 107 | 41 | 63 | 54 | 54 | 55 | 47 | 47 | 46 | 154 | 158 | 257 | 257 | 170 | 162 | 206 | 314 | 173 | 258 | 203 | |
Swell 3 Height (m) Direction Period (s) | SSW 21 | W 13 | W 13 | S 12 | S 12 | S 11 | W 12 | W 12 | SSE 12 | W 12 | SSE 11 | SW 18 | SW 19 | SW 19 | SSW 17 | SSW 18 | SSW 18 | W 15 | SSW 13 | SSW 13 | SSE 8 |
45 | 29 | 55 | 44 | 44 | 41 | 48 | 47 | 47 | 27 | 25 | 82 | 183 | 93 | 261 | 207 | 211 | 279 | 113 | 113 | 27 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | ENE 8 | E 8 | E 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
259 | 215 | 269 | 272 | 231 | 192 | 238 | 302 | 323 | 333 | 251 | 223 | 168 | 155 | 140 | 132 | 102 | 96 | 96 | 135 | 131 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 12 | 24 | 12 | 21 | 24 | 13 | 21 | 27 | 21 | 21 | 22 | 12 | 12 | 21 | 12 | 12 | 15 | 12 | 13 | 21 | 12 |
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.










