Surf Forecasts:
Margaret River Mouth surf forecast from 16 Jul 2026:
- Best quality surf: Sunday 19 Jul, 11PM (local time) - 5ft (1.6m), 13s period, SW swell with glassy winds.
- Most powerful swell: Saturday 18 Jul, 2PM (local time) - 8ft (2.5m), 16s period, WSW swell with 3,594 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 8PM (local time) - 5ft (1.5m), 13s 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 Sunday (Jul 19) at 8PM. The primary swell is predicted to be 1.5m and 13s period with a secondary swell of 0.7m and 15s. 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 2.5m 16s and forecast to arrive on Saturday (Jul 18) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Friday (Jul 17) at 11PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 19th Jul) | 5ft (1.5m) 13s |
| Best Surf | 11PM (Sun 19th Jul) | 5ft (1.6m) 13s |
| Most Powerful | 2PM (Sat 18th Jul) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Margaret River Mouth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cooking for the next couple of weeks.
Right off the bat, I’ve gotta be straight with you – the first week and a half is a bit of a write-off. We’re looking at a gap of about 6 days with nothing really worth paddling out for. The wind is just a mess, mostly cross or onshore, and the swell is all over the shop. It’s not until the morning of Thursday, the 23rd of July, that things start to look up.
Margaret River Mouth (river) is the only game in town, and it’s a sheltered river break, so it needs the right conditions to line up. The water’s sitting at 67°, which is a touch warmer than normal for this time of year.
The first real standout is that Thursday the 23rd morning. We’ve got a clean 4ft SW groundswell (14 seconds) with a light offshore breeze from the ENE. The energy is moderate (706), and the wind right off the land will have it looking smooth. It’s a beginner-friendly wave at that size, and it’s very consistent, so you’ll get waves. Just be aware it can get crowded *sometimes*.
After that, it goes a bit average again for a few days with lumpy winds and smaller swell. The next real highlight is Sunday, the 26th of July, in the afternoon. That’s when we get a very clean 4ft SW swell (14 seconds) with a light cross-offshore breeze from the SE. The energy is solid (1132), and it’s promising some very good surf. This looks like a session to aim for.
Then early the next week, Monday the 27th, the mornings are looking clean with offshore breezes. You’ll get 5ft SW groundswell (14 seconds) both mornings, with moderate energy. It’s not epic, but it’s clean and rideable, which is a lot better than what we’ve had.
Looking further ahead into the second week, there’s a promising pulse on the 29th of July – Wednesday morning. We’re looking at a 4ft SW swell but with a very long period of 17 seconds, giving it strong energy (2434). That’s a proper groundswell. The wind is a clean cross-offshore, but the size is a bit small for the power. The best of that same pulse hits Wednesday afternoon with a 7ft SW swell at 17 seconds – that’s big and powerful, but the wind is a fresh cross-offshore so it might be a bit lumpy. It’s a long-range call, so it’s promising but not locked in.
Overall, hold tight until that Thursday the 23rd, and keep your eyes on that Sunday the 26th afternoon for the best chance of clean waves.
Rusty.
Short Range ForecastModerate rain (total 16mm), heaviest on Fri night. Very mild (max 18°C on Fri morning, min 13°C on Sun night). Winds decreasing (strong winds from the WNW on Fri night, calm by Sun night). | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Mon night. Very mild (max 16°C on Mon afternoon, min 11°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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 | WSW 12 | W 13 | W 12 | WSW 16 | WSW 15 | WSW 14 | WSW 13 | SW 13 | SW 13 | SW 14 | SW 13 | SW 14 | SW 13 | SW 12 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 377 | 288 | 1632 | 1850 | 3216 | 1714 | 1053 | 772 | 878 | 411 | 506 | 562 | 791 | 673 | 613 | 1036 | 1130 | 965 | 706 | 630 | 380 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | on | on | on | cross-on | cross-on | cross-off | cross | on | cross | cross | cross-on | cross-on | on | cross-on | off | off | cross-on | cross-off |
High Tide | 11:21AM0.68m | 11:14AM0.57m | 9:43AM0.49m | 8:19AM0.46m | 4:32AM0.52m | 4:53AM0.57m | 5:31AM0.62m | ||||||||||||||
Low Tide | 9:14PM0.19m | 8:50PM0.29m | 6:28PM0.32m | 5:09PM0.28m | 4:14PM0.22m | 4:09PM0.16m | 4:22PM0.12m | ||||||||||||||
 |  |  | |  |  | | |  | | |  |  | | | | | | | | | |
 | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — |
 | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — |
mm | — | 1 | 9 | 4 | 1 | — | 1 | — | — | — | 1 | 5 | — | — | — | — | 2 | — | — | — | — |
Temp °C | 18 | 18 | 17 | 14 | 15 | 15 | 15 | 16 | 15 | 14 | 16 | 16 | 14 | 14 | 14 | 16 | 16 | 15 | 11 | 14 | 13 |
Feels °C | 13 | 13 | 12 | 4 | 7 | 8 | 10 | 12 | 13 | 11 | 11 | 11 | 9 | 10 | 10 | 12 | 12 | 13 | 9 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 12 | WSW 12 | — | — | — | WSW 15 | WSW 14 | WSW 13 | SW 13 | SW 13 | SW 14 | SW 13 | SW 14 | SW 13 | SW 12 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 |
| kJ | 377 | 288 | — | — | — | 1714 | 1053 | 772 | 878 | 411 | 506 | 562 | 791 | 673 | 613 | 1036 | 1130 | 965 | 706 | 630 | 380 |
Swell 2 Height (m) Direction Period (s) | NW 12 | NW 12 | — | — | — | — | — | SSW 17 | — | SSW 11 | — | — | — | — | — | — | — | — | — | W 18 | SSW 14 |
| kJ | 6 | 5 | — | — | — | — | — | 29 | — | 90 | — | — | — | — | — | — | — | — | — | 6 | 63 |
Swell 3 Height (m) Direction Period (s) | S 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 18 | W 16 |
| kJ | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 5 |
Wind waves Height (m) Direction Period (s) | NW 7 | NNW 6 | W 13 | W 12 | WSW 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 4 | N 5 |
| kJ | 42 | 48 | 1632 | 1850 | 3216 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 43 | 43 | 214 | 1688 | 245 | 245 | 12 | 12 | 0 | 3 | 214 | 44 | 20 | 12 | 12 | 44 | 12 | 0 | 0 | 9 | 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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