Surf Forecasts:
Dunes surf forecast from 11 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 8AM (local time) - 5ft (1.6m), 16s period, SW swell with offshore winds.
- Most powerful swell: Tuesday 18 Aug, 5AM (local time) - 5ft (1.6m), 16s period, SW swell with 1,318 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 5AM (local time) - 3ft (0.9m), 15s period with SW swell.
Best Forecast Surf Conditions for Dunes this week:
The surf forecast for Dunes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 5AM. The primary swell is predicted to be 0.9m and 15s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Dunes in the next 16 days are 1.6m 16s and forecast to arrive on Tuesday (Aug 18) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 5s period and expected on Wednesday (Aug 12) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 13th Aug) | 3ft (0.9m) 15s |
| Best Surf | 8AM (Tue 18th Aug) | 5ft (1.6m) 16s |
| Most Powerful | 5AM (Tue 18th Aug) | 5ft (1.6m) 16s |
Table - best surf conditions forecast for Dunes over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's get into it.
We've got a bit of a slow cooker here at Dunes. For the next few days, the swell's tiny and the wind is messy. There's a gap of a few days where it's not really worth paddling out. The cleanest window comes later, but you've got to be patient.
Tuesday the 11th is a write-off. We’re looking at a 2ft SW groundswell with a period of 13 seconds, which is okay, but a solid 25 mph offshore wind is blowing like crazy. The combined swell energy is weak (349). It makes the surf clean but it's just too hard to get into anything. Not happening.
Wednesday the 12th and Thursday the 13th are more of the same – small 3ft to 4ft groundswell with moderate energy (572 and up), but the wind is cross-off or cross, putting a ripple on it. It's marginal, nothing to get excited about.
Now, Friday the 14th, there’s a little window. The morning glass off with a 3ft SW groundswell, 17-second period, and light offshore breeze. The energy ticks up to a moderate level (493). The water is a comfortable 75°, right around average for this time of year. Clean conditions, but still small.
Saturday the 15th morning is another decent call. A 3ft SW groundswell with a 16-second period and glassy conditions – absolutely perfect for a small-wave longboard or a fish. The crowd factor is "sometimes" here, so you might have some company, but early is always best.
The best run of the forecast kicks off on Monday the 18th. The morning session is the standout. We've got a solid 5ft SW groundswell (1279 combined energy – moderate), a 16-second period, and a gentle offshore wind out of the SSE. This is excellent, clean surf for experienced surfers. The break is a reef, so that long-period groundswell will line up nicely.
Things stay good through the week. Tuesday the 20th morning is another cracker – 6ft SW groundswell with a 16-second period and a moderate offshore wind (1759 combined energy – strong). This is big, clean power and only for the skilled crew. This would be the single best session on offer.
The surf tapers off again towards the end of the 16-day window. Saturday the 22nd and Sunday the 23rd mornings are clean with 4ft waves, and then Monday the 24th morning gives us a final gift: a 5ft SW groundswell, an 18-second period, and glassy conditions (1414 combined energy – strong). A seriously good, long-period swell for the reef.
So, if you’ve got a free morning, the standout is Tuesday the 20th for size and power, but Monday the 24th is the real sleeper for quality. Get out there.
- Rusty
Short Range ForecastMostly dry. Warm (max 21°C on Tue afternoon, min 15°C on Wed morning). Winds decreasing (strong winds from the SE on Tue night, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Sat afternoon, min 19°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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) | SW 13 | SW 13 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | WSW 13 | SW 13 | SW 16 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 176 | 176 | 627 | 567 | 480 | 385 | 297 | 297 | 198 | 493 | 549 | 480 | 468 | 365 | 407 | 379 | 309 | 249 | 894 | 1271 | 1302 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-on | cross | cross-off | cross | cross-off | off | cross-on | cross | glassy | cross-on | cross | on | on | cross-on | cross-on | cross-on | cross-off |
High Tide | 9:40AM1.73m | 11:24PM1.41m | 10:47AM1.86m | 11:57PM1.57m | 11:38AM1.96m | 00:28AM1.71m | 12:21PM1.99m | 00:58AM1.82m | 1:00PM1.97m | 1:27AM1.88m | 1:35PM1.89m | 1:55AM1.91m | 2:06PM1.76m | 2:20AM1.90m | |||||||
Low Tide | 4:51PM0.30m | 4:32AM0.77m | 5:34PM0.18m | 5:26AM0.59m | 6:11PM0.12m | 6:11AM0.43m | 6:45PM0.11m | 6:51AM0.33m | 7:14PM0.15m | 7:28AM0.28m | 7:41PM0.23m | 8:03AM0.29m | 8:05PM0.32m | ||||||||
 | |  | | | | | | | | | | | | | | | |  | |  | |
 | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:47 | — | — | 6:46 | — | — |
 | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 21 | 21 | 16 | 19 | 20 | 19 | 20 | 20 | 20 | 22 | 21 | 22 | 23 | 22 | 22 | 22 | 22 | 21 | 21 | 21 |
Feels °C | 10 | 13 | 11 | 7 | 16 | 16 | 13 | 17 | 18 | 17 | 18 | 16 | 20 | 20 | 19 | 21 | 20 | 21 | 20 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 9 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | WSW 13 | SW 13 | SW 16 | SW 16 | SW 16 |
| kJ | 176 | 76 | 627 | 567 | 480 | 385 | 297 | 297 | 198 | 493 | 549 | 480 | 468 | 365 | 407 | 379 | 309 | 249 | 894 | 1271 | 1302 |
Swell 2 Height (m) Direction Period (s) | SW 6 | SW 13 | NW 11 | NW 11 | NE 6 | NE 6 | NE 8 | NE 6 | SW 19 | NE 6 | NNE 6 | NE 5 | SSW 3 | N 11 | N 12 | NW 12 | NW 13 | SW 16 | W 12 | W 12 | NW 12 |
| kJ | 26 | 176 | 5 | 5 | 56 | 22 | 3 | 24 | 171 | 6 | 4 | 1 | 1 | 2 | 3 | 6 | 6 | 216 | 3 | 3 | 6 |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 16 | NW 11 | — | NW 11 | NE 8 | SW 22 | SW 21 | NE 6 | — | — | — | NE 5 | — | — | — | — | — | — | — | — |
| kJ | 147 | 95 | 5 | — | 4 | 11 | 18 | 18 | 11 | — | — | — | 1 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 4 | SE 5 | E 5 | — | — | ENE 5 | — | SW 2 | — | — | SW 3 | — | NW 5 | W 3 | — | NNW 3 | NW 3 | WNW 4 | W 5 | W 5 |
| kJ | 55 | 20 | 110 | 93 | — | — | 27 | — | 1 | — | — | 1 | — | 1 | 1 | — | 1 | 2 | 15 | 34 | 16 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 660 | 1344 | 660 | 753 | 251 | 227 | 768 | 660 | 227 | 0 | 258 | 227 | 0 | 1020 | 660 | 493 | 1020 | 1195 | 1344 | 1288 | 227 |
Best forecast wave conditions in North West WA | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Dunes Surf forecast
The above surf forecast table for Dunes provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dunes can be found by selecting the local surf guide option on the grey menu. Our Dunes 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 (Dunes) 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 Dunes 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.
Are you planning a holiday in North West WA? If you are looking for accommodation near Dunes, camping, hotels and holiday cottages in North West WA, consider staying in Exmouth which is 15 km (9 miles) away.
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