Surf Forecasts:
City Beach groyne surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 2AM (local time) - 10ft (3.0m), 16s period, WSW swell with offshore winds.
- Most powerful swell: Wednesday 26 Aug, 8PM (local time) - 10ft (3.0m), 17s period, WSW swell with 6,061 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 2AM (local time) - 10ft (3.0m), 16s 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 Thursday (Aug 20) at 2AM. The primary swell is predicted to be 3.0m and 16s period. The wind is predicted to be offshore 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 Wednesday (Aug 26) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 20th Aug) | 10ft (3.0m) 16s |
| Best Surf | 2AM (Thu 20th Aug) | 10ft (3.0m) 16s |
| Most Powerful | 8PM (Wed 26th Aug) | 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 have a look at what’s coming up for City Beach groyne over the next couple of weeks.
We’re kicking off with a solid pulse of swell from the WSW. The water is sitting at 62°, which is a bit colder than usual for this time of year, so you might want an extra mil. The first few days are the real story here, with a big, long-period groundswell rolling in. Thursday morning the 20th is looking like a standout. We’ve got a clean 8ft WSW swell with a very long 16-second period, and the wind is absolutely glassy from the SE. That is going to be pure, clean, classic lines at the groyne. The energy is strong (3351), so there’s plenty of push. It’s a bit on the bigger side, so this one is for the experienced crew.
Friday morning the 21st is another beauty. The swell drops a touch to 7ft, but it’s still a solid WSW groundswell with a 15-second period. The wind is offshore from the E, light at 6 mph, keeping it clean and lined up. The energy is still strong (2032). Again, more for the folks who know what they’re doing.
Saturday morning the 22nd holds in with a 6ft WSW swell, long 16-second period, and light cross-offshore wind from the N. It’s clean, but the swell is dropping. The energy is still moderate (1904). After that, the wind starts to get a bit messy in the afternoons, and the swell fades through Sunday and Monday.
There’s a bit of a quiet spell from Tuesday the 25th through the middle of the week. The swell drops right off, with energy falling to a weak 466 on Tuesday, and then a tiny 2ft on Tuesday afternoon. Not much to get excited about.
But hang on, because Wednesday the 26th sees a massive flare-up. We’re looking at a 10ft WSW swell, with a very long 18-second period, and the energy is pumping at a massive 5151. That’s strong to very strong energy. However, the wind is cross-onshore from the WNW at 9 mph, which will put a bit of a chop on it. It’s going to be a big, powerful, but a bit messy day. Definitely for experts only, and maybe more interesting for the kite crew than paddle surfing, given the size and that cross-onshore breeze.
Thursday the 27th cleans up a bit with a cross-offshore SSE wind, but the swell is still solid at 8ft. The energy is still strong (2615). After that, the swell tapers off again into the weekend, with small surf on the 28th and 29th.
Looking further out, the last few days of August and into September show another solid run of swell. The 30th and 31st have 6ft to 7ft WSW swell, with long periods of 16-18 seconds. The wind looks light and mostly favourable on the mornings. Monday the 31st morning is a standout, with a 7ft WSW swell, a 16-second period, and light cross-offshore NNE wind at 6 mph. Clean and powerful. Then Wednesday the 2nd of September morning looks promising too, with a 7ft WSW swell, offshore E wind, and a 13-second period.
So, the pick of the forecast is hands down Thursday morning the 20th for that glassy, big, clean groundswell. The second best is probably Friday morning the 21st for another clean, offshore session. The long-range stuff on the 31st and 2nd of September is promising, but we’ll have to see how that shapes up.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Fri afternoon, min 12°C on Fri morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 16°C on Sat night, min 9°C on Mon morning). Wind will be generally light. | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 13 | WSW 16 | WSW 14 | WSW 13 | WSW 12 | WSW 11 | WSW 15 | WSW 13 |
Wave Graph | |||||||||||||||||||
4161 | 3594 | 2696 | 2459 | 2010 | 1822 | 1600 | 1904 | 1307 | 712 | 692 | 690 | 2596 | 1534 | 1110 | 699 | 366 | 249 | 837 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | cross | cross-off | off | cross | off | cross | cross | cross | cross | cross | cross-off | off | cross-on | cross-off | cross | cross-on | on |
High Tide | 1:44AM0.56m | 3:25AM0.56m | 4:59AM0.57m | 6:06AM0.59m | 6:58AM0.61m | 7:40AM0.63m | |||||||||||||
Low Tide | 3:20PM0.13m | 3:31PM0.10m | 3:47PM0.09m | 4:04PM0.08m | 4:18PM0.08m | 4:28PM0.08m | |||||||||||||
— | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | |
5:52 | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 16 | 17 | 16 | 17 | 20 | 18 | 18 | 18 | 16 | 15 | 16 | 16 | 14 | 16 | 14 | 16 | 16 | 16 |
Feels °C | 16 | 16 | 14 | 13 | 15 | 18 | 15 | 16 | 14 | 12 | 11 | 11 | 11 | 12 | 13 | 11 | 13 | 13 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 13 | WSW 16 | WSW 14 | WSW 13 | WSW 12 | WSW 11 | WSW 11 | WSW 13 |
4161 | 3594 | 2696 | 2459 | 2010 | 1822 | 1600 | 1904 | 1307 | 712 | 692 | 690 | 2596 | 1534 | 1110 | 699 | 366 | 176 | 837 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SW 24 | WSW 22 | WSW 19 | — | — | WSW 20 | WSW 18 | WSW 17 | — | — | — | — | — | WSW 15 | WSW 22 |
— | — | — | — | 22 | 95 | 441 | — | — | 38 | 182 | 428 | — | — | — | — | — | 249 | 158 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SSW 4 | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SSW 4 | SSW 5 | SSW 5 | SSW 4 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | 10 | 70 | 41 | 20 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 70 | 0 | 0 | 151 | 0 | 16 | 192 | 151 | 151 | 151 | 0 | 0 | 151 | 0 | 16 | 373 | 297 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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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.











