Surf Forecasts:
Dunes surf forecast from 8 Sep 2026:
- Best quality surf: Saturday 12 Sep, 5AM (local time) - 3.5ft (1.1m), 19s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 12 Sep, 8PM (local time) - 5.5ft (1.7m), 16s period, WSW swell with 1,487 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 5AM (local time) - 4.5ft (1.3m), 15s period with WSW 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 (Sep 10) at 5AM. The primary swell is predicted to be 1.3m and 15s period with a secondary swell of 0.2m and 3s. 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 1.7m 16s and forecast to arrive on Saturday (Sep 12) 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 1.2m 5s period and expected on Wednesday (Sep 09) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 10th Sep) | 4.5ft (1.3m) 15s |
| Best Surf | 5AM (Sat 12th Sep) | 3.5ft (1.1m) 19s |
| Most Powerful | 8PM (Sat 12th Sep) | 5.5ft (1.7m) 16s |
Table - best surf conditions forecast for Dunes over the next 16 days.
The Lowdown
Alright, let’s break it down. Dunes is seeing a solid stretch of swell over the next couple weeks, but the wind plays games. It’s a consistent reef break, intermediate level, and likes SW swell—which is exactly what’s rolling in. Water temp is around 74°F right now, pretty average for September.
First few days are a wash. Wednesday the 9th has a 4ft SW groundswell with 16-second intervals, but the morning wind is a stiff 16 mph cross-off, and afternoon turns onshore. Not worth paddling out. Thursday the 10th morning shapes up better—lighter ESE breeze, 4ft WSW swell at 15 seconds, cleaner but still not the standout.
The real gem is Saturday the 12th morning. Swell runs 4ft WSW with a 18-second period—long, powerful lines. Wind is light offshore from SSE at 3 mph, glassy. Wave energy hits 1383 (moderate-strong). That’s the session to plan around. Clean, the reef holds the long period nicely, and crowds are only sometimes, so you’ll have plenty of room.
Sunday the 13th morning is still clean, but energy drops a notch. Monday the 14th morning offers another clean window with 5ft WSW at 14 seconds, light SSW breeze—good but not epic.
Second week brings a spike. Saturday the 19th morning: 7ft WSW, 16 seconds, clean with a gentle cross-off (9 mph). Energy rockets to 2071 (strong). That’s expert territory—too big for most, but if you’ve got the chops, score early before the afternoon cross-shore wind ruins it.
Sunday the 20th morning – hold up. 7ft WSW, 14 seconds, offshore from SSE at 16 mph. The report says it’s actually too big for this break. Even with good wind, the size pushes the reef’s limits. Only the most experienced should even look at it.
After that, the pattern settles into clean mornings with 3–4ft SW swell, light winds, and afternoon seabreezes that chop it up. The 21st and 23rd mornings are fun but nothing special.
Best call for most folks: Saturday the 12th morning. Clean, long-period, proper shape. For the experienced crew: Saturday the 19th morning, but get there early. The rest are morning-only windows unless you’re happy with slop.
— Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Thu afternoon, min 18°C on Wed morning). Winds decreasing (strong winds from the ESE on Wed morning, calm by Fri morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Sun afternoon, min 19°C on Sat morning). Winds increasing (light winds from the SSE on Sat morning, fresh winds from the SW by Sun afternoon). | ||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||
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 16 | SW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 15 | WSW 19 | WSW 18 | WSW 17 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | WSW 14 | WSW 14 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 844 | 813 | 760 | 740 | 632 | 443 | 357 | 382 | 584 | 1093 | 1148 | 1199 | 837 | 763 | 874 | 774 | 818 | 672 | 653 | 869 | 1212 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross-off | on | cross | glassy | cross-on | cross-off | off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off |
High Tide | 9:51AM1.65m | 11:00PM1.50m | 10:48AM1.79m | 11:28PM1.68m | 11:32AM1.89m | 11:57PM1.83m | 12:10PM1.93m | 00:25AM1.94m | 12:44PM1.91m | 00:52AM2.00m | 1:15PM1.84m | 1:17AM2.02m | 1:43PM1.73m | 1:41AM1.99m | |||||||
Low Tide | 4:36PM0.39m | 4:35AM0.63m | 5:13PM0.30m | 5:19AM0.43m | 5:46PM0.24m | 5:58AM0.27m | 6:15PM0.24m | 6:33AM0.17m | 6:42PM0.27m | 7:05AM0.14m | 7:06PM0.32m | 7:36AM0.17m | 7:27PM0.41m | ||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — |
 | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 22 | 21 | 23 | 22 | 21 | 22 | 21 | 20 | 22 | 22 | 21 | 23 | 21 | 21 | 22 | 21 | 21 | 23 | 21 |
Feels °C | 16 | 21 | 20 | 20 | 21 | 20 | 22 | 21 | 19 | 20 | 18 | 19 | 19 | 18 | 16 | 20 | 19 | 18 | 19 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 15 | WSW 14 | WSW 18 | WSW 17 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | WSW 14 | WSW 14 | SW 15 | SW 15 |
| kJ | 844 | 813 | 760 | 740 | 632 | 443 | 357 | 382 | 367 | 1093 | 1148 | 1199 | 837 | 763 | 874 | 774 | 818 | 672 | 653 | 869 | 1212 |
Swell 2 Height (m) Direction Period (s) | — | ENE 4 | NE 5 | SW 26 | SW 26 | WSW 24 | SW 22 | WSW 22 | WSW 19 | WSW 14 | WSW 13 | — | — | — | — | N 7 | N 6 | N 6 | N 7 | N 7 | N 7 |
| kJ | — | 6 | 6 | 27 | 26 | 55 | 119 | 181 | 584 | 290 | 277 | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 37 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 5 | NNE 3 | WSW 3 | — | — | WSW 3 | — | — | WSW 3 | — | WSW 2 | SSW 3 | S 3 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SSW 6 | SW 4 | SSW 4 |
| kJ | 29 | 1 | 1 | — | — | 3 | — | — | 1 | — | 1 | 3 | 5 | 19 | 17 | 4 | 9 | 10 | 34 | 16 | 33 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1146 | 227 | 805 | 0 | 660 | 227 | 0 | 1397 | 0 | 0 | 1446 | 660 | 493 | 1446 | 660 | 0 | 1288 | 1091 | 1288 | 1446 | 1288 |
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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