Surf Forecasts:
Back Beach surf forecast from 22 Jul 2026:
- Best quality surf: Monday 27 Jul, 8AM (local time) - 10ft (3.0m), 14s period, WSW swell with cross-onshore winds.
- Most powerful swell: Sunday 26 Jul, 11PM (local time) - 11ft (3.5m), 14s period, SW swell with 4,655 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 5AM (local time) - 5ft (1.5m), 13s 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 Friday (Jul 24) at 5AM. The primary swell is predicted to be 1.5m and 13s period with a secondary swell of 0.2m and 18s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Back Beach in the next 16 days are 3.5m 14s and forecast to arrive on Sunday (Jul 26) 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 0.7m 4s period and expected on Thursday (Jul 23) at 2AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 24th Jul) | 5ft (1.5m) 13s |
| Best Surf | 8AM (Mon 27th Jul) | 10ft (3.0m) 14s |
| Most Powerful | 11PM (Sun 26th Jul) | 11ft (3.5m) 14s |
Table - best surf conditions forecast for Back Beach over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s break down what’s on the menu for Back Beach over the next couple of weeks.
The water’s sitting at 68°F, which is pretty normal for this time of year – nothing to write home about.
We kick off on Wednesday, July 22nd, with a solid southwest swell running 7 to 8 ft, with a 13 to 16 second period. The combined energy is strong (1367 to 2687). The wind is cross-off from the ESE, so it’s clean enough, but the surf is a bit marginal. Not the best.
Friday the 24th is a good call. The swell drops to 4 to 5 ft, still from the southwest, with a 13-second period. The wind is offshore in the morning from the NE, and the afternoon is a gentle cross-off. The forecast says “very good surf conditions,” so this is a solid, clean session.
Saturday the 25th is okay but not a standout. Sunday the 26th is a total loss – strong onshore winds from the SW at 22 mph, blowing out a 6 to 8 ft swell. Don’t bother.
Now, Monday the 27th is a real standout. The morning sees an 8 ft WSW swell, 13-second period, and the combined energy is strong (2655). The wind is nearly nothing from the ESE at 3 mph, practically glassy. This is “excellent surf conditions for experienced surfers” – big, clean, and powerful. Tuesday the 28th is another beauty – offshore ENE winds at 12 mph dropping to 6 mph, with a 6 to 7 ft SW swell at 14 seconds. These two days are the best of the first week.
Wednesday the 29th has a 4 to 6 ft WSW swell with a very long 17-second period. The morning is offshore, the afternoon goes glassy. That long period will make the waves stand up, but at a beach break, it might wall up a bit. Still a nice session.
Thursday the 30th is clean in the morning, then turns onshore in the afternoon. Go early.
Friday the 31st morning has a 8 ft WSW swell, 16-second period, with a light cross-shore wind and strong energy (3171). The afternoon is onshore and messy.
The first weekend of August (the 1st and 2nd) is a write-off – strong SE winds and lumpy surf.
Then the second week improves. Monday the 3rd and Tuesday the 4th of August bring clean conditions with a 4 to 7 ft WSW swell, 17 to 18-second period, and cross-off winds. The standout is Tuesday afternoon, August 4th, with a 7 ft swell, 17-second period, and a gentle breeze. That’s a quality session.
But Wednesday the 5th of August sees a massive 13 ft W swell, 15-second period, and combined energy over 6200. That’s way too big for Back Beach – it’s for experts only, and even then, it’s likely too big. Same for Thursday the 6th, with 12 ft+ swell.
So, the best bets are Monday July 27th morning and Tuesday July 28th – clean, solid, and powerful. In the second week, Tuesday August 4th afternoon is a promising one, but it’s a bit further out, so keep an eye on it.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Thu afternoon, min 11°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sun morning. Very mild (max 19°C on Sat afternoon, min 12°C on Mon night). Winds decreasing (fresh winds from the SW on Sun morning, light winds from the ESE by Mon morning). | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | WSW 13 | WSW 13 | WSW 13 | WSW 16 | SW 11 | WSW 14 | WSW 13 | SW 13 | SW 15 | SW 14 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1367 | 2687 | 2295 | 1752 | 1480 | 792 | 623 | 471 | 373 | 615 | 643 | 447 | 1608 | 1585 | 4319 | 2655 | 1855 | 2130 | 1704 | 1311 | 1073 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | on | on | cross-on | cross-off | cross-on | cross-off | off | off | cross-off |
High Tide | 4:37AM0.56m | 5:26AM0.59m | 6:15AM0.61m | 7:01AM0.63m | 7:43AM0.65m | 8:21AM0.66m | |||||||||||||||
Low Tide | 4:24PM0.14m | 4:07PM0.11m | 4:17PM0.08m | 4:34PM0.06m | 4:55PM0.05m | 5:15PM0.05m | 5:33PM0.05m | ||||||||||||||
 | |  | | | | |  | | | |  |  | |  |  | | | | | | |
 | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — |
 | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — |
Temp °C | 13 | 16 | 15 | 13 | 17 | 16 | 14 | 17 | 16 | 16 | 19 | 18 | 17 | 16 | 16 | 15 | 16 | 15 | 14 | 18 | 16 |
Feels °C | 8 | 11 | 10 | 8 | 13 | 11 | 9 | 14 | 12 | 11 | 15 | 14 | 12 | 9 | 10 | 12 | 14 | 11 | 9 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | WSW 13 | WSW 13 | WSW 13 | — | WSW 16 | WSW 14 | WSW 13 | SW 13 | SW 15 | SW 14 | SW 14 | SW 14 |
| kJ | 1367 | 2687 | 2295 | 1752 | 1480 | 792 | 623 | 471 | 373 | 615 | 643 | 447 | — | 525 | 4319 | 2655 | 1855 | 2130 | 1704 | 1311 | 1073 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | WSW 18 | WSW 16 | WSW 16 | WSW 15 | SW 18 | WSW 17 | SW 16 | — | — | — | — | W 26 | SW 24 | WSW 22 | WSW 21 | WSW 19 |
| kJ | — | — | — | — | — | 61 | 90 | 86 | 167 | 51 | 119 | 268 | — | — | — | — | 13 | 22 | 181 | 297 | 774 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 3 | — | ESE 4 | E 3 | — | E 3 | NE 3 | — | — | NNE 3 | NNW 5 | NW 3 | WSW 16 | SW 11 | — | — | — | ESE 3 | — | — | — |
| kJ | 2 | — | 11 | 6 | — | 5 | 2 | — | — | 3 | 9 | 7 | 1608 | 1585 | — | — | — | 2 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 71 | 3 | 3 | 3 | 3 | 0 | 0 | 0 | 247 | 0 | 178 | 374 | 1680 | 255 | 0 | 3 | 3 | 0 | 0 | 3 |
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.
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