Surf Forecasts:
City Beach groyne surf forecast from 4 Sep 2026:
- Best quality surf: Sunday 6 Sep, 5AM (local time) - 13ft (4.0m), 13s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 2AM (local time) - 10ft (3.0m), 17s period, WSW swell with 4,660 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 11PM (local time) - 4.5ft (1.4m), 13s period with WSW swell.
Best Forecast Surf Conditions for City Beach groyne this week:
The surf forecast for City Beach groyne over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 05) at 11PM. The primary swell is predicted to be 1.4m and 13s period with a secondary swell of 1.5m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at City Beach groyne in the next 16 days are 3.0m 17s and forecast to arrive on Monday (Sep 07) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Sunday (Sep 06) at 11AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 5th Sep) | 4.5ft (1.4m) 13s |
| Best Surf | 5AM (Sun 6th Sep) | 13ft (4.0m) 13s |
| Most Powerful | 2AM (Mon 7th Sep) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for City Beach groyne over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it for City Beach groyne.
We’ve got a heap of swell on the way, but it’s not all going to be pretty. The first few days are a write-off for decent surfing. Friday morning the 4th is a total mess – 10ft of WSW swell, but with a 19 mph cross-onshore wind that’s just making it lumpy and poor. The combined energy is massive (3202), but it’s ugly. Saturday and Sunday are similar story; the wind keeps it from shaping up, though Sunday morning (the 6th) does go clean with a cross-off breeze, but it’s still a marginal call.
The first real standout window opens up on Tuesday the 8th. Tuesday morning you’ve got a 6ft WSW swell with a very long 18-second period and offshore winds from the ESE at 12 mph. The water’s about average for this time of year, nothing weird going on. That’s clean, lined-up groundswell. This is the one for the experienced crew – the conditions are excellent for you. The combined energy is strong (2616), and that offshore wind will put a real lip on it. Tuesday afternoon gets a bit bigger at 8ft, and still clean, but the morning window is the pick.
We’ve got a bit of a lull in the middle of the week. Wednesday and Thursday mornings (9th and 10th) are still clean but the swell drops. Thursday afternoon (10th) is a sleeper – 4ft, but with a 14-second period and offshore wind, it’s clean and glassy. Expect very good surf for a smaller board.
Then we hit a rough patch. The 12th through the 14th is a write-off. Strong onshore winds, rain, and a messy combo. Don’t bother until the 15th.
The next standout is Tuesday the 15th. Tuesday morning you’ve got a 7ft WSW swell with a 17-second period, light cross-offshore breeze, and excellent conditions for experienced surfers. The combined energy is high (2764). That’s clean, powerful, and long-period.
And for the long-range promise, keep an eye on the 16th of September. Wednesday morning and afternoon both have a solid 8ft WSW swell with a 16-second period and offshore ENE winds at 12 mph. The combined energy is strong (2900). This is excellent for the experienced surfer, with clean, offshore conditions. It’s a little way out, so it’s promising but not locked in yet.
The 17th has a late-afternoon glass-off with 6ft and a 14-second period, and the 19th of September Saturday morning is a big one to watch – 8ft with an 18-second period and a slight offshore breeze. That’s a long-range call, but it has the potential to be the best of the whole run.
The best on offer? Lock in the morning of Tuesday the 8th for the clean offshore groundswell, and the morning of the 16th for the bigger, powerful, offshore lines.
Rusty out.
Short Range ForecastLight rain (total 8mm), mostly falling on Sat night. Very mild (max 17°C on Sat afternoon, min 9°C on Sun night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Tue afternoon, min 8°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 15 | WSW 14 | WSW 14 | WSW 10 | WSW 13 | WSW 13 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3164 | 3139 | 4111 | 2454 | 1106 | 1613 | 3014 | 2242 | 4660 | 2888 | 2191 | 1933 | 3260 | 3042 | 2588 | 2028 | 1668 | 1531 | 924 | 789 | 834 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | off | cross-off |
High Tide | 3:14AM0.63m | 5:04AM0.64m | 6:20AM0.66m | 7:21AM0.66m | 8:13AM0.64m | 10:43PM0.33m | 8:58AM0.60m | 10:19PM0.37m | |||||||||||||
Low Tide | 2:13PM0.07m | 2:42PM0.02m | 3:13PM-0.00m | 3:43PM0.00m | 4:09PM0.04m | 4:27PM0.10m | 1:36AM0.31m | 4:31PM0.17m | 2:58AM0.27m | ||||||||||||
 | |  |  |  |  | | |  |  | | | | | | | | | | |  | |
 | 6:31 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — |
 | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:05 | — |
mm | — | — | — | — | 2 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 15 | 17 | 15 | 14 | 17 | 14 | 14 | 20 | 17 | 15 | 21 | 19 | 16 | 20 | 19 | 17 | 21 | 19 |
Feels °C | 9 | 11 | 13 | 10 | 12 | 12 | 7 | 11 | 8 | 10 | 15 | 13 | 9 | 16 | 15 | 10 | 15 | 15 | 12 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | W 11 | WSW 13 | WSW 15 | WSW 14 | WSW 14 | WSW 10 | WSW 13 | WSW 13 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 |
| kJ | 38 | 3139 | 4111 | 2454 | 1106 | 1613 | 3014 | 2242 | 4660 | 2888 | 2191 | 1933 | 3260 | 3042 | 2588 | 2028 | 1668 | 1531 | 924 | 789 | 834 |
Swell 2 Height (m) Direction Period (s) | — | WSW 20 | — | — | — | W 14 | WSW 20 | WSW 18 | — | — | — | — | — | — | — | — | — | W 26 | WSW 24 | WSW 24 | WSW 21 |
| kJ | — | 137 | — | — | — | 253 | 135 | 525 | — | — | — | — | — | — | — | — | — | 13 | 55 | 54 | 180 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | W 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 13 | — | — | — | WNW 6 | — | SSE 5 | — | ESE 4 | — | S 4 | SE 3 | — | — | E 4 | ENE 4 | — | — | — | — | — |
| kJ | 3164 | — | — | — | 213 | — | 91 | — | 9 | — | 15 | 9 | — | — | 13 | 8 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1985 | 189 | 50 | 361 | 355 | 434 | 1623 | 5 | 5 | 5 | 70 | 0 | 0 | 0 | 0 | 50 | 0 | 16 | 16 | 0 | 16 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||||
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Information about the City Beach groyne Surf forecast
The above surf forecast table for City Beach groyne provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at City Beach groyne can be found by selecting the local surf guide option on the grey menu. Our City Beach groyne 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 (City Beach groyne) 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 City Beach groyne 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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