Surf Forecasts:
Margaret River Mouth surf forecast from 26 Jul 2026:
- Best quality surf: Monday 27 Jul, 8PM (local time) - 5.5ft (1.7m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 5PM (local time) - 10ft (3.0m), 14s period, SW swell with 2,982 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 8PM (local time) - 5.5ft (1.7m), 15s period with SW swell.
Best Forecast Surf Conditions for Margaret River Mouth this week:
The surf forecast for Margaret River Mouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 27) at 8PM. The primary swell is predicted to be 1.7m and 15s period with a secondary swell of 0.1m and 24s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Margaret River Mouth in the next 16 days are 3.0m 14s and forecast to arrive on Sunday (Jul 26) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 4s period and expected on Wednesday (Jul 29) at 2PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 27th Jul) | 5.5ft (1.7m) 15s |
| Best Surf | 8PM (Mon 27th Jul) | 5.5ft (1.7m) 15s |
| Most Powerful | 5PM (Sun 26th Jul) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Margaret River Mouth over the next 16 days.
The Lowdown
G’day, I’m Rusty, and I’ve got the lowdown on what’s coming our way for Margaret River Mouth. We’ve got a classic winter stretch ahead, but don’t get too excited too quick—there’s a bit of a wait before things clean up.
Right off the bat, we’re looking at a rough and messy weekend. The river mouth is small and sheltered, but the wind is howling out of the WSW at 25 mph on Sunday morning, cross-on and ugly, with a 8 ft SW swell that’s all push and no shape. That combined swell energy is cranked up at 1857, so there’s power, but it’s wasted. Sunday arvo stays average with a 10 ft SW swell at 14 seconds, but that strong cross-on breeze keeps it lumpy. Monday doesn’t get much better—still cross-shore winds and drop in size to 6 ft. The water temp is sitting at 67°, which is a touch warmer than normal for this time of year.
Now, Tuesday the 28th of July is where we finally get a window. Morning glass-off with an easterly offshore breeze at just 6 mph and a clean 5 ft SW groundswell pushing in at 14 seconds. That’s proper energy with a combined reading of 1010, and it’s lining up nicely with the optimum SSW direction for this spot. This is the standout session—light winds, clean lines, and consistent. The afternoon turns light cross-on, but the morning is the pick.
Wednesday the 29th is still okay with clean cross-off winds and dropping swell down to 4 ft, but it’s fading. Then Thursday through Saturday blows out again with strong cross-onshore winds and lumpy conditions. Friday the 31st gets a brief pulse of bigger swell—6 ft SW at 16 seconds—but that rain and fresh cross-onshore wind ruin it completely.
Looking into early August, Saturday the 1st and Sunday the 2nd show some promise. Sunday morning especially: clear skies, light offshore from the NE at 6 mph, and a 5 ft SW groundswell at 14 seconds. Combined energy is still solid at 1387, and the wind will hold it clean. That’s your second standout—a solid long-period swell with glassy conditions. Monday the 3rd keeps the offshore flow with a lighter 3 ft swell, better for the longboard or the learner on a foamie.
Further out, Wednesday the 5th of August morning looks clean again with 6 ft SW and light cross-off breezes. But the real gem hidden in the second week is Thursday the 6th of August morning: some clouds, near-calm winds from the SE at just 3 mph, and a 8 ft SW groundswell at 15 seconds. That combined energy hits 2208—strong and powerful. This is expert territory due to the size and long period, but for those who know the river mouth, it’ll be absolutely pumping and clean. Just know that this far out, it’s promising but not locked in.
Crowds can be an issue here if it’s good, so get in early. Overall, the best of the bunch is Tuesday morning the 28th and Sunday morning the 2nd of August—clean, lined-up SW groundswell with offshore winds. Don’t sleep on that Thursday the 6th either, if you’re experienced.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Tue afternoon, min 11°C on Tue night). Winds decreasing (strong winds from the WSW on Sun morning, calm by Tue afternoon). | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Fri afternoon. Very mild (max 19°C on Thu afternoon, min 10°C on Wed morning). Winds increasing (light winds from the NE on Wed night, fresh winds from the SSW by Fri night). | ||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | |||||||||||||||
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) | WSW 12 | SW 14 | SW 13 | SW 12 | SW 13 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | SW 13 | SW 16 | SW 14 | SW 15 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1857 | 2982 | 1697 | 976 | 961 | 1147 | 965 | 776 | 651 | 586 | 321 | 474 | 289 | 301 | 772 | 813 | 1631 | 2080 | 1833 | 1526 | 1273 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-off | cross-off | off | cross-on | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | off |
High Tide | 8:16AM0.76m | 8:51AM0.77m | 9:22AM0.77m | 9:50AM0.75m | 10:14AM0.71m | 10:36AM0.65m | 1:41AM0.36m | ||||||||||||||
Low Tide | 5:24PM0.06m | 5:48PM0.06m | 6:11PM0.07m | 6:29PM0.10m | 6:38PM0.13m | 6:40PM0.17m | 6:37PM0.21m | 3:50AM0.36m | |||||||||||||
 | |  |  | |  | |  | | | | | |  |  | |  |  | | | | |
 | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — |
 | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:38 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | 11 | 1 | — | — | — |
Temp °C | 14 | 15 | 15 | 14 | 14 | 13 | 14 | 16 | 13 | 13 | 15 | 13 | 18 | 19 | 18 | 18 | 14 | 14 | 12 | 13 | 12 |
Feels °C | 4 | 7 | 8 | 9 | 9 | 10 | 10 | 14 | 9 | 9 | 11 | 10 | 14 | 15 | 15 | 12 | 8 | 7 | 6 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | — | — | SW 13 | SW 12 | SW 13 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | SW 13 | SW 16 | SW 14 | SW 15 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 |
| kJ | — | — | 1697 | 976 | 961 | 1147 | 965 | 776 | 651 | 586 | 321 | 474 | 289 | 301 | 772 | 813 | 1631 | 2080 | 1833 | 1526 | 1273 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SW 24 | WSW 21 | SW 19 | SW 18 | SW 18 | SW 16 | S 10 | SW 20 | SW 19 | SSE 8 | — | WSW 20 | — | — | — | SSW 16 |
| kJ | — | — | — | — | — | 22 | 45 | 229 | 255 | 154 | 255 | 31 | 186 | 184 | 7 | — | 216 | — | — | — | 155 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SW 22 | S 9 | S 9 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 18 | 15 | 6 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 12 | SW 14 | — | — | — | — | — | — | — | — | N 5 | N 5 | N 5 | N 5 | NW 4 | WNW 6 | SW 6 | SSW 6 | — | — | — |
| kJ | 1857 | 2982 | — | — | — | — | — | — | — | — | 4 | 5 | 18 | 15 | 9 | 49 | 56 | 52 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 577 | 698 | 44 | 31 | 31 | 0 | 0 | 12 | 3 | 3 | 0 | 15 | 43 | 43 | 43 | 245 | 96 | 71 | 31 | 12 | 0 |
Best forecast wave conditions in Margaret River | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Margaret River Mouth Surf forecast
The above surf forecast table for Margaret River Mouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Margaret River Mouth can be found by selecting the local surf guide option on the grey menu. Our Margaret River Mouth 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 (Margaret River Mouth) 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 Margaret River Mouth 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.
Margaret River Mouth is 92 km (57 miles) from the city of Bunbury. If you plan a holiday in Margaret River, look for hotels and other accommodation in Bunbury. Bunbury has rooms for a wide range of budgets as well as car hire and transport links.
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