Surf Forecasts:
Cowries surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 20 Aug, 7PM (local time) - 4ft (1.2m), 6s period, NE swell with glassy winds.
- Most powerful swell: Wednesday 26 Aug, 1PM (local time) - 3.5ft (1.1m), 6s period, SSE swell with 98 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 7PM (local time) - 4ft (1.2m), 6s period with NE swell.
Best Forecast Surf Conditions for Cowries this week:
The surf forecast for Cowries over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 7PM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.8m and 6s. Another secondary swell of 0.4m and 7s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cowries in the next 16 days are 1.1m 6s and forecast to arrive on Wednesday (Aug 26) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Wednesday (Aug 26) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Thu 20th Aug) | 4ft (1.2m) 6s |
| Best Surf | 7PM (Thu 20th Aug) | 4ft (1.2m) 6s |
| Most Powerful | 1PM (Wed 26th Aug) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Cowries over the next 16 days.
The Lowdown
Alright, let’s have a look at what’s on the menu for the next couple of weeks. The only spot in the frame is Cowries, a reef and point break that’s fairly consistent. Water temp is sitting at 65°, which is about 1° warmer than average for this time of year – nothing wild, just a touch on the mild side.
To be straight with you, the first week or so is pretty underwhelming. From Thursday 20th August right through to the morning of Sunday 30th, there’s next to nothing worth paddling out for. The waves are small, the energy is weak – mostly under 100 (combined energy) – and the conditions are ordinary. A few mornings pop up with clean, glassy or offshore wind, like Saturday 23rd morning with a glassy 2 ft from the south, or Tuesday 25th morning with light rain and glassy 2 ft from the ENE. But the swell is just too small and weak to get excited about. It’s a long blank stretch, nearly a week and a half of poor surf.
Now, Sunday 30th August morning things start to change. The swell jumps to 6 ft from the NE, with combined energy hitting 379 (moderate), but the wind is a moderate cross-onshore and it’s choppy. Still not a good call. That afternoon, the swell builds to 8 ft from the NE, energy 1059, but it’s cross-shore and messy. Monday 31st has a 7 ft ENE swell in the morning with light cross-shore wind – marginal at best. By the afternoon, it’s 10 ft from the ENE with a nasty cross-onshore and energy over 2000 – too big and messy.
The real standout – and I mean the one to circle – is Tuesday 1st September. Morning sees a solid 12 ft swell from the east, period 10 seconds, with a moderate cross-offshore wind from the west, leaving clean conditions. The energy is massive at 2207. But here’s the thing: the guidance says the optimum swell direction here is ENE, and this is straight east, so it’s not perfect. More importantly, 12 ft is expert territory – way too big for beginners. The afternoon is similar, 12 ft east, light cross-shore, but again, it’s a big one. For experienced surfers, those east swells at a reef and point can be absolutely firing, but you’ll want to be on your game.
Wednesday 2nd September morning drops to 8 ft from the east, period 10 seconds, clean with a cross-offshore wind. Energy is still high at 1049. That’s a bit more manageable for strong intermediates, but still a solid, powerful groundswell.
Thursday 3rd September morning has a 5 ft east swell, 9-second period, clean with cross-offshore wind – that’s a better all-rounder, but not the big draw. Friday 4th September morning is glassy with a 5 ft SSE swell, 8-second period, and the afternoon stays glassy with 5 ft from the SSE. Those are clean, fun-size waves, but the swell direction isn’t the optimum ENE.
So, the pick of the whole forecast is Tuesday 1st September. That east swell with clean, offshore wind at Cowries is a proper session if you’ve got the chops. Just be aware it’s going to be a big one, and the swell direction isn’t the absolute best. The rest of the run has some clean moments but nothing that’ll blow your mind.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Thu morning, min 12°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 37mm), heaviest during Tue morning. Warm (max 21°C on Mon morning, min 11°C on Tue night). Winds increasing (calm on Mon afternoon, fresh winds from the SW by Tue night). | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | NE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 6 | NE 6 | S 5 | SSE 5 | NE 6 | S 9 | NE 9 | S 10 | S 9 | NE 6 | S 9 | ENE 9 | ENE 9 | ENE 9 | NE 8 | SSE 6 | SSE 6 |
Wave Graph | |||||||||||||||||||||
61 | 30 | 78 | 50 | 26 | 13 | 20 | 14 | 5 | 76 | 62 | 30 | 41 | 64 | 41 | 55 | 56 | 68 | 67 | 87 | 36 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-off | cross | off | off | cross-on | off | glassy | cross-on | cross | cross | glassy | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 1:52PM1.25m | 2:28AM0.86m | 2:55PM1.25m | 3:49AM0.84m | 3:59PM1.27m | 4:58AM0.87m | 4:56PM1.32m | 5:50AM0.92m | 5:44PM1.38m | 6:32AM0.98m | 6:26PM1.44m | 7:08AM1.05m | 7:04PM1.49m | ||||||||
Low Tide | 8:51PM0.49m | 7:55AM0.53m | 10:06PM0.48m | 9:02AM0.56m | 11:09PM0.43m | 10:09AM0.54m | 11:58PM0.37m | 11:07AM0.50m | 00:38AM0.30m | 11:55AM0.44m | 1:12AM0.24m | 12:39PM0.38m | 1:45AM0.18m | ||||||||
6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 12 | 13 | 11 | 1 | — | — |
Temp °C | 22 | 20 | 17 | 21 | 21 | 16 | 18 | 17 | 14 | 16 | 17 | 14 | 21 | 21 | 16 | 12 | 12 | 12 | 12 | 13 | 11 |
Feels °C | 18 | 17 | 15 | 20 | 19 | 13 | 15 | 15 | 13 | 13 | 13 | 12 | 19 | 20 | 14 | 12 | 10 | 9 | 6 | 9 | 7 |
Swell 1 Height (m) Direction Period (s) | ENE 6 | ESE 6 | ENE 6 | ENE 7 | ENE 6 | NE 6 | S 5 | SSE 5 | SE 4 | S 9 | SSE 7 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ENE 9 | ENE 9 | ENE 9 | NE 8 | SSE 6 | SSE 6 |
29 | 15 | 78 | 50 | 26 | 13 | 20 | 14 | 2 | 76 | 48 | 15 | 20 | 29 | 20 | 55 | 56 | 68 | 67 | 87 | 36 | |
Swell 2 Height (m) Direction Period (s) | ESE 8 | E 10 | S 12 | S 11 | S 10 | S 10 | NE 6 | NE 6 | NE 6 | NE 6 | NE 9 | S 6 | S 9 | S 9 | S 9 | S 9 | S 9 | S 8 | S 16 | ENE 8 | NE 8 |
37 | 2 | 3 | 2 | 2 | 2 | 5 | 6 | 5 | 6 | 12 | 13 | 41 | 41 | 41 | 39 | 23 | 12 | 5 | 44 | 31 | |
Swell 3 Height (m) Direction Period (s) | E 11 | S 13 | — | S 11 | — | E 9 | S 9 | S 8 | S 4 | S 17 | SSE 13 | S 10 | ENE 8 | ENE 9 | NE 9 | SE 16 | S 16 | S 16 | S 15 | S 16 | S 10 |
2 | 3 | — | 2 | — | 2 | 6 | 6 | 2 | 5 | 35 | 30 | 7 | 7 | 20 | 10 | 5 | 5 | 5 | 5 | 8 | |
Wind waves Height (m) Direction Period (s) | NE 6 | ENE 6 | — | — | — | WSW 3 | — | ESE 3 | — | — | NE 9 | N 3 | — | NE 6 | WSW 2 | — | SSW 3 | S 4 | SSE 6 | — | — |
61 | 30 | — | — | — | 2 | — | 1 | — | — | 62 | 1 | — | 64 | 1 | — | 3 | 17 | 86 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 10 | 0 | 0 | 9 | 127 | 9 | 299 | 129 | 0 | 156 | 3 | 3 | 0 | 0 | 0 | 0 | 10 | 90 | 10 | 0 |
Best forecast wave conditions in Illawarra | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Cowries Surf forecast
The above surf forecast table for Cowries provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cowries can be found by selecting the local surf guide option on the grey menu. Our Cowries 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 (Cowries) 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 Cowries 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.
Cowries is 10 km (6 miles) from the city of Port Kembla. If you plan a holiday in Illawarra, look for hotels and other accommodation in Port Kembla. Port Kembla has rooms for a wide range of budgets as well as car hire and transport links.











