
Surf Forecasts:
Cowries surf forecast from 8 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 7PM (local time) - 11ft (3.5m), 9s period, SSE swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 10PM (local time) - 11ft (3.5m), 10s period, SSE swell with 2,509 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 7AM (local time) - 3ft (0.9m), 8s period with SSE 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 Wednesday (Sep 09) at 7AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.7m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cowries in the next 16 days are 3.5m 10s and forecast to arrive on Wednesday (Sep 09) at 10PM. 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 5s period and expected on Tuesday (Sep 15) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Wed 9th Sep) | 3ft (0.9m) 8s |
| Best Surf | 7PM (Wed 9th Sep) | 11ft (3.5m) 9s |
| Most Powerful | 10PM (Wed 9th Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Cowries over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on offer for the next couple of weeks.
First up, the water temp is sitting about average for this time of year – nothing wild there.
We’re looking at a pretty quiet start. The first real chance to get wet comes on Wednesday the 9th. Cowries will have a 2.6 ft swell from the S, with a short 8-second period, and a cross-off SSW wind at 16 mph. The combined energy is only moderate (133), and the surf quality is poor, so it’s not exactly a day to get excited about. It stays clean, but the waves are weak and messy.
Thursday the 10th sees a bump in size – 8.2 ft from the S on the morning, period still short at 9 seconds. The wind is cross-off from the SSW at 12 mph, keeping it clean, but the energy reading jumps up to strong (2172). The problem is the swell is over 8 ft, so this is really only for the experienced crew. The conditions are still marginal, so don’t expect perfection.
Friday the 11th morning is a standout. The swell drops to a more manageable 5.2 ft from the SSE, with a 9-second period, and the wind is a light 6 mph cross-off from the S. The combined energy is moderate (457), and the forecast says “expect good surf conditions.” This is the best window in the whole run – clean, a decent size, and not too crowded if you time it right. The long period (11 seconds) on Saturday the 12th would be a plus, but the wind turns onshore, so it’s a no-go.
After Friday, the surf drops off fast. From Saturday the 12th all the way through to Sunday the 20th, the waves are tiny – mostly under 3 ft – and the wind is either onshore or cross-onshore, making for choppy, poor conditions. There’s a gap of over a week with nothing worth paddling out for. The only blip is a glassy morning on Sunday the 20th with 2 ft from the S, but it’s very ordinary.
Then, on Monday the 21st, we get a late pulse: 7.5 ft from the SSE, with a 10-second period and a light cross-onshore NNE breeze. The energy is strong (1006), but the conditions are marginal and the wind is not ideal. It’s a big, raw swell for the experienced only.
The best surf on offer is Friday the 11th morning at Cowries. It’s the only day that really ticks the boxes for decent size, clean conditions, and good vibes. Everything else is either too small, too windy, or too big for the average punter.
Short Range ForecastMostly dry. Very mild (max 16°C on Fri morning, min 9°C on Wed night). Winds decreasing (fresh winds from the S on Wed afternoon, calm by Fri afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Mon morning, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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) | S 8 | S 8 | SSE 8 | S 10 | S 9 | SSE 9 | S 10 | SSE 9 | SSE 9 | SSE 10 | SSE 11 | SSE 10 | SSE 9 | S 9 | S 11 | S 12 | S 11 | S 11 | S 10 |
Wave Graph | |||||||||||||||||||
205 | 84 | 849 | 1916 | 1184 | 724 | 938 | 451 | 360 | 283 | 259 | 170 | 92 | 85 | 110 | 132 | 114 | 110 | 50 | |
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 | cross-on | off | cross-on | on | cross | cross-on | cross-on | cross | cross | cross-on | cross-off |
High Tide | 6:46AM1.18m | 6:46PM1.62m | 7:29AM1.27m | 7:33PM1.61m | 8:09AM1.34m | 8:16PM1.55m | 8:47AM1.40m | 8:58PM1.46m | 9:24AM1.43m | 9:39PM1.34m | 10:00AM1.43m | 10:19PM1.21m | |||||||
Low Tide | 00:42AM0.07m | 12:24PM0.28m | 1:24AM0.04m | 1:15PM0.22m | 2:02AM0.04m | 2:03PM0.18m | 2:38AM0.07m | 2:49PM0.17m | 3:11AM0.13m | 3:34PM0.19m | 3:43AM0.21m | 4:19PM0.24m | |||||||
— | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | |
— | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 15 | 14 | 13 | 15 | 15 | 12 | 16 | 16 | 13 | 18 | 18 | 14 | 21 | 20 | 17 | 25 | 25 | 20 |
Feels °C | 9 | 10 | 6 | 5 | 10 | 11 | 9 | 14 | 15 | 12 | 14 | 14 | 12 | 15 | 15 | 14 | 21 | 22 | 18 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | ESE 13 | ESE 11 | S 9 | SSE 22 | SSE 10 | SSE 9 | SSE 9 | SSE 10 | SSE 11 | SSE 10 | SSE 9 | S 9 | S 11 | S 12 | S 11 | S 11 | NE 5 |
205 | 84 | 17 | 71 | 866 | 161 | 696 | 451 | 360 | 283 | 259 | 170 | 92 | 85 | 110 | 132 | 114 | 110 | 23 | |
Swell 2 Height (m) Direction Period (s) | SE 7 | SE 7 | S 16 | S 24 | ESE 10 | ESE 9 | ESE 8 | E 15 | E 14 | SSE 18 | SSE 19 | SSE 21 | ENE 4 | ENE 13 | ENE 13 | ENE 5 | NE 6 | ENE 13 | S 10 |
54 | 42 | 5 | 11 | 20 | 17 | 6 | 4 | 4 | 32 | 69 | 86 | 11 | 17 | 17 | 18 | 18 | 16 | 50 | |
Swell 3 Height (m) Direction Period (s) | E 10 | E 9 | E 16 | S 23 | SSE 23 | E 9 | E 15 | E 10 | E 10 | E 13 | E 14 | ENE 14 | SSE 18 | SSE 16 | E 9 | ENE 13 | E 13 | S 15 | ENE 12 |
7 | 7 | 5 | 42 | 102 | 2 | 4 | 2 | 2 | 4 | 15 | 19 | 65 | 26 | 2 | 17 | 13 | 4 | 15 | |
Wind waves Height (m) Direction Period (s) | — | SSW 4 | SSE 8 | S 10 | S 9 | SSE 9 | S 10 | — | — | — | — | ENE 3 | N 2 | NE 4 | NE 4 | — | — | NE 5 | — |
— | 13 | 849 | 1916 | 1184 | 724 | 938 | — | — | — | — | 9 | 1 | 7 | 29 | — | — | 32 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 10 | 836 | 10 | 10 | 19 | 0 | 0 | 64 | 0 | 10 | 123 | 3 | 10 | 73 | 2 | 3 | 4 | 10 |
Best forecast wave conditions in Illawarra | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










