Surf Forecasts:
Cozies and Geeries surf forecast from 16 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 5AM (local time) - 11ft (3.5m), 15s period, W swell with cross-offshore winds.
- Most powerful swell: Monday 17 Aug, 11PM (local time) - 13ft (4.0m), 15s period, W swell with 6,271 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 5AM (local time) - 11ft (3.5m), 15s period with W swell.
Best Forecast Surf Conditions for Cozies and Geeries this week:
The surf forecast for Cozies and Geeries over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 5AM. The primary swell is predicted to be 3.5m and 15s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cozies and Geeries in the next 16 days are 4.0m 15s and forecast to arrive on Monday (Aug 17) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Sunday (Aug 23) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 18th Aug) | 11ft (3.5m) 15s |
| Best Surf | 5AM (Tue 18th Aug) | 11ft (3.5m) 15s |
| Most Powerful | 11PM (Mon 17th Aug) | 13ft (4.0m) 15s |
Table - best surf conditions forecast for Cozies and Geeries over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s cut through the noise and look at what’s actually on the cards for Cozies and Geeries over the next couple of weeks.
It’s a bit of a slow start, to be honest. Sunday and Monday are a write-off. We’ve got a solid swell pushing through, but the wind is howling onshore and it’s going to be a messy, blown-out mess. The water’s sitting at 63.1°F, which is a bit colder than you’d expect for this time of year, so don’t forget the booties if you’re even thinking about paddling out in that slop.
The real story starts to unfold on Tuesday, August 18th. After that poor start, we finally get a proper window. The wind drops right out – glassy conditions – and there’s a strong, powerful groundswell from the west at 11.5ft. The energy numbers are huge, with a reading of 5775, and the period is a solid 16 seconds. This is not for the faint-hearted. It’s a serious, expert-only wave. Cozies and Geeries is a reef and point setup, and that long-period west swell is going to be firing down the point. This is the standout of the whole run. It’s big, it’s clean, and it’s powerful. The afternoon stays rideable but the wind swings a bit cross-onshore, making it choppier.
Wednesday is still okay, but the swell backs down a notch to the 7.9ft – 9.8ft range and the wind is more on it, so it won’t have that same crisp, clean feel as the day before.
Then we get to Thursday, August 20th. Another true highlight. The morning is glassy again, with a solid 9.8ft west-southwest groundswell and a 16-second period. The energy reading is 4003, and the wind is dead calm. This is another day for experienced surfers to get stuck into some proper waves. The afternoon stays clean with a light cross-offshore breeze, holding the swell at a very respectable 8.2ft. This is about as good as it gets for this break – powerful, clean, and well-shaped.
After that, the second week gets a bit more inconsistent. Friday and Saturday have waves in the 4.9ft to 7.5ft range, with clean spells but nothing with that same punch. It’s more of a pick-and-choose situation. The following week, the wind turns onshore and messy again, with periods of rain and strong breezes. There’s a big bump of energy on the 29th and 30th, but it’s coming with onshore winds and rain, making it a battle, not a pleasure.
So, to sum it up: the first few days are a write-off. The surf to be had is on Tuesday the 18th and Thursday the 20th. Those are your two standouts – big, clean, powerful groundswell with light winds. Get on it, because the window doesn’t stay open long.
Short Range ForecastModerate rain (total 13mm), heaviest on Mon afternoon. Warm (max 21°C on Sun afternoon, min 13°C on Mon night). Winds decreasing (strong winds from the WSW on Mon afternoon, calm by Tue morning). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Very mild (max 17°C on Wed afternoon, min 13°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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 15 | WSW 14 | W 19 | W 19 | W 10 | W 15 | W 16 | W 16 | W 16 | W 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 16 |
Wave Graph | |||||||||||||||||||||
1581 | 1533 | 3007 | 3167 | 3364 | 5876 | 5775 | 5581 | 3522 | 2647 | 4139 | 5392 | 4003 | 3059 | 2723 | 2228 | 2048 | 1877 | 1321 | 862 | 1411 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross-on | cross | glassy | cross-on | cross-on | on | on | on | glassy | cross-off | off | cross | cross | off | cross-off | cross-off | off |
High Tide | 10:37AM0.42m | 00:26AM0.47m | 9:41AM0.36m | 00:40AM0.52m | 8:54AM0.33m | 1:02AM0.55m | 1:49AM0.56m | 3:48AM0.56m | 5:16AM0.58m | ||||||||||||
Low Tide | 5:13PM0.23m | 6:17AM0.32m | 5:00PM0.21m | 7:40AM0.33m | 4:40PM0.19m | 3:40PM0.15m | 3:29PM0.12m | 3:41PM0.10m | 3:57PM0.08m | ||||||||||||
6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — | |
— | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | |
mm | — | — | — | 1 | 11 | 1 | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 18 | 21 | 20 | 18 | 16 | 15 | 14 | 15 | 16 | 16 | 17 | 17 | 15 | 17 | 16 | 14 | 16 | 16 | 15 | 16 | 16 |
Feels °C | 12 | 16 | 15 | 11 | 7 | 7 | 13 | 12 | 12 | 13 | 14 | 14 | 14 | 15 | 13 | 13 | 15 | 13 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 15 | WSW 14 | W 19 | W 19 | — | W 15 | W 16 | W 16 | W 16 | W 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 16 |
1581 | 1533 | 3007 | 3167 | — | 5876 | 5775 | 5581 | 3522 | 2647 | 4139 | 5392 | 4003 | 3059 | 2723 | 2228 | 2048 | 1877 | 1321 | 862 | 1411 | |
Swell 2 Height (m) Direction Period (s) | — | — | W 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 20 | WSW 17 | — |
— | — | 938 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 38 | 315 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | N 4 | NNW 5 | N 4 | NW 5 | W 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
19 | 19 | 28 | 166 | 3364 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 265 | 62 | 265 | 1207 | 593 | 81 | 0 | 291 | 314 | 62 | 122 | 70 | 0 | 0 | 0 | 3 | 81 | 0 | 0 | 81 | 0 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Cozies and Geeries Surf forecast
The above surf forecast table for Cozies and Geeries provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cozies and Geeries can be found by selecting the local surf guide option on the grey menu. Our Cozies and Geeries 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 (Cozies and Geeries) 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 Cozies and Geeries 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.
Cozies and Geeries is 8 km (5 miles) from Mandurah. If you plan a holiday in Perth City Coast, look for hotels and other accommodation in Mandurah. Mandurah has rooms for a wide range of budgets as well as car hire and transport links.











