
Surf Forecasts:
Back Beach surf forecast from 25 Jul 2026:
- Best quality surf: Sunday 26 Jul, 8PM (local time) - 10ft (3.0m), 14s period, SW swell with cross-onshore winds.
- Most powerful swell: Friday 31 Jul, 11PM (local time) - 10ft (3.0m), 18s period, SW swell with 5,678 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 8PM (local time) - 10ft (3.0m), 14s period with SW swell.
Best Forecast Surf Conditions for Back Beach this week:
The surf forecast for Back Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 26) at 8PM. The primary swell is predicted to be 3.0m and 14s period. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Back Beach in the next 16 days are 3.0m 18s and forecast to arrive on Friday (Jul 31) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Thursday (Jul 30) at 5AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 26th Jul) | 10ft (3.0m) 14s |
| Best Surf | 8PM (Sun 26th Jul) | 10ft (3.0m) 14s |
| Most Powerful | 11PM (Fri 31st Jul) | 10ft (3.0m) 18s |
Table - best surf conditions forecast for Back Beach over the next 16 days.
The Lowdown
No surf on the immediate horizon. The first lull runs from now through Saturday, 26 July. A glimmer appears Sunday morning, 27 July, but that swell is too big for this spot and I’d skip it. After that we get a run of decent, rideable days that starts to look pretty exciting for a clean, offshore winner on Wednesday 29 July morning.
Alright, let’s talk Back Beach. Sunday 27 July morning sees a solid 10 ft SW groundswell with a period of 13 seconds, but the water temp is sitting at 68°F – which is about average for the time of year, nothing unusual. The combined energy here is strong (2764). Problem is, this swell is way oversize for beginners and it’s labelled as too big for the break anyway. Monday 28 July and Tuesday 29 July mornings are both clean, with offshore and cross-off winds, swells around 8 ft to 7 ft from the SW with moderate wave energy (2202 to 2011). These are solid, consistent waves for competent surfers, but they’re not the standouts.
Wednesday 29 July morning is the one that gets me going. We’ve got a 4 ft WSW swell, but the period jumps to 17 seconds – that’s a long-period groundswell, which will produce beautifully shaped, powerful lines, great for a beachie like this if the tide lines up. The wind is NE 15 mph, offshore, keeping things clean and glassy. Combined energy is moderate (1755), but the quality is marked as excellent for experienced surfers. Not for beginners at this size, but for anyone who knows their way, this is the best session of the window. Crowds are possible here, so get in early.
Thursday 30 July morning holds another offshore window with 6 ft and 16-second period (1730 energy), also clean and excellent – a good backup.
The run continues into Friday 31 July morning: 8 ft WSW at 16 seconds, light NNW 6 mph offshore, very clean, excellent conditions (2904 energy). That is another top tier window, though the south to southwest swell will pitch a little fast at the beach – watch the tide.
Saturday 1 August and most of Monday 3 August get messy with strong cross-shore winds and lumpy conditions. The real fade happens from Tuesday 4 August onward, with onshore gales and rain, and by Thursday 6 August we’re looking at a 15 ft swell that’s huge, dangerous, and for experts only – but the wind is onshore and ugly. Combined energy on that Thursday afternoon hits a massive 13293 – very strong wave energy, but it’s a washing machine.
Friday 7 August through Saturday 9 August keep offering clean, cross-off winds and waves from 10 ft to 13 ft, but each time the swell is marked as too big for Back Beach (energy values between 4040 and 8142). For a regular surfer, the swell size and long period (14–17 seconds) will make for heavy, wonky lines at this exposed beach break. The setup looks more interesting for kite surfing than paddle surfing on those days.
If you’re looking to score clean, rideable surf, your best bet is Wednesday 29 July morning, with Friday 31 July morning as a close, clean runner-up. After that, the second week gets iffy and oversized.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sun morning. Very mild (max 19°C on Sat afternoon, min 10°C on Mon night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Thu afternoon, min 10°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
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 13 | WSW 13 | WSW 13 | WSW 16 | SW 11 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | WSW 17 | SW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 18 | WSW 16 | WSW 16 | WSW 17 |
Wave Graph | |||||||||||||||||||||
615 | 596 | 373 | 425 | 1256 | 4814 | 2764 | 2046 | 2008 | 2085 | 1836 | 1311 | 986 | 2187 | 1408 | 1322 | 1305 | 1901 | 2904 | 2389 | 5663 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | on | cross-on | cross-on | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | off | on | off | cross-off | cross-on | cross-on |
High Tide | 7:01AM0.63m | 7:43AM0.65m | 8:21AM0.66m | 8:54AM0.66m | 9:23AM0.65m | 9:49AM0.62m | 1:14AM0.31m | ||||||||||||||
Low Tide | 4:34PM0.06m | 4:55PM0.05m | 5:15PM0.05m | 5:33PM0.05m | 5:44PM0.07m | 5:51PM0.09m | 5:54PM0.12m | 2:57AM0.30m | |||||||||||||
7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | |
— | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 19 | 18 | 18 | 16 | 16 | 14 | 16 | 15 | 13 | 16 | 15 | 15 | 19 | 18 | 18 | 21 | 19 | 17 | 19 | 18 |
Feels °C | 10 | 14 | 14 | 14 | 10 | 12 | 11 | 13 | 11 | 7 | 10 | 10 | 9 | 14 | 13 | 12 | 17 | 17 | 14 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 13 | WSW 16 | SW 11 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 18 | WSW 16 | WSW 16 | WSW 17 |
615 | 596 | 373 | 425 | 1256 | 4814 | 2764 | 2046 | 2008 | 2085 | 1836 | 1311 | 769 | 2187 | 1408 | 1322 | 1305 | 1901 | 2904 | 2389 | 5663 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | WSW 17 | SW 16 | WSW 12 | SW 14 | — | — | — | SW 24 | SW 21 | WSW 21 | WSW 19 | WSW 17 | — | WSW 24 | WSW 22 | WSW 20 | SW 14 | — | SW 21 | — |
51 | 119 | 261 | 161 | 721 | — | — | — | 22 | 117 | 175 | 766 | 986 | — | 55 | 408 | 1171 | 1002 | — | 1946 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | N 3 | NW 5 | WNW 4 | SW 7 | — | — | — | — | — | — | — | E 3 | ENE 3 | — | ENE 3 | NNE 4 | — | — | — | — | — |
5 | 13 | 15 | 253 | — | — | — | — | — | — | — | 5 | 4 | — | 5 | 7 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 438 | 189 | 178 | 293 | 1680 | 71 | 3 | 178 | 3 | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 71 | 0 | 0 | 515 | 189 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Back Beach Surf forecast
The above surf forecast table for Back Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Back Beach can be found by selecting the local surf guide option on the grey menu. Our Back Beach 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 (Back Beach) 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 Back Beach 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 Perth City Coast? If you are looking for accommodation near Back Beach, camping, hotels and holiday cottages in Perth City Coast, consider staying in Perth which is 125 km (78 miles) away.










