
Surf Forecasts:
Cowries surf forecast from 10 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 1PM (local time) - 5ft (1.5m), 11s period, S swell with offshore winds.
- Most powerful swell: Sunday 16 Aug, 10PM (local time) - 7.5ft (2.3m), 8s period, SE swell with 616 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 1PM (local time) - 5ft (1.5m), 11s period with S 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 Tuesday (Aug 11) at 1PM. The primary swell is predicted to be 1.5m and 11s period with a secondary swell of 0.7m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cowries in the next 16 days are 2.3m 8s and forecast to arrive on Sunday (Aug 16) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Aug 11) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Tue 11th Aug) | 5ft (1.5m) 11s |
| Best Surf | 1PM (Tue 11th Aug) | 5ft (1.5m) 11s |
| Most Powerful | 10PM (Sun 16th Aug) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Cowries over the next 16 days.
The Lowdown
Righto, let’s have a look at what’s on the cards for Cowries over the next couple of weeks.
Honestly, starting off, it’s not pretty. The first few days are pretty grim. Tuesday and Wednesday of this week are a write-off with messy onshore slop and poor surf conditions, despite a bit of clean-looking wind. The real story begins Thursday morning, 13 August. It’s not firing, but the early session sees a 4 ft S swell with a short 8-second period and light offshore wind from the SW. The wave energy is moderate (266). It’s surfable but very ordinary. The afternoon picks up a bit, with 6 ft S swell and the same short period, but the wind turns cross-shore and the energy jumps to 761 moderate. It’s still only a marginal call.
Friday morning 14 August is your best early bet. Glassy conditions with a light SSW breeze, and a 3 ft S swell coming in at 8 seconds. The combined energy is weak (159), so it’s not going to be pumping, but it’ll be clean and fun for a beginner-friendly reef and point break. This is one of the few standouts in the first week – small, clean, and no crowds to worry about. The southerly swell direction is a bit off the optimum ENE, but with the glassy surface, it’ll offer a few rideable lines.
After that, the weekend and start of next week turn average again. Saturday and Sunday see some 5-5 ft S swell, but the wind swings onshore or cross-off with moderate breezes, and the consistency is poor. The energy stays around 244-300 moderate, but the wave quality is low. Then Monday 17 August pushes up to 7 ft SE swell, still short period at 8 seconds. That’s getting into beginner-challenging territory, but the cross-shore wind and ordinary conditions don’t make it worth a paddle out.
The pattern continues with more of the same through Tuesday 18 August and Wednesday 19 August – moderate energy (299-446), short period swell, and mostly cross or cross-off winds. Nothing to get excited about.
The real standout doesn’t appear until late in the period. Look at Tuesday 25 August afternoon. That’s still over a week away, so treat it as promising but not locked in. An 8 ft SSE swell, short period at 8 seconds, but combined energy is strong at 971. The wind is cross-off from the S at 12 mph, keeping things clean. This is squarely in expert-only territory – too big for beginners. The swell direction is a little off the optimum ENE, but when you’ve got that much energy and clean conditions, Cowries reef and point will handle it fine, especially with that period keeping the waves lined up.
The following morning, Wednesday 26 August, holds a similar 8 ft ESE swell with a light NNW cross-shore breeze and energy at 873 strong. Again, only for experienced surfers. The period is still short at 8 seconds, so it’ll be punchy rather than drawn-out.
Overall, the pick is Friday 14 August morning for small clean waves, and the real punch comes on Tuesday 25 August afternoon and Wednesday 26 August morning for the experts.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Tue morning, min 10°C on Wed night). Winds decreasing (fresh winds from the W on Mon night, light winds from the WSW by Thu afternoon). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Sat night. Very mild (max 16°C on Fri morning, min 10°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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 10 | S 12 | S 10 | S 10 | S 9 | S 9 | S 8 | S 8 | S 8 | S 7 | S 8 | SSE 8 | S 7 | S 7 | S 7 | SSE 7 | SSE 7 | SSE 7 | SE 8 |
Wave Graph | |||||||||||||||||||
137 | 96 | 461 | 365 | 170 | 97 | 65 | 230 | 448 | 127 | 134 | 96 | 159 | 255 | 240 | 157 | 181 | 231 | 512 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-off | cross-off | off | off | cross | cross-off | glassy | cross | cross-off | cross-off | cross-off | cross-on | cross-off | cross | cross-on |
High Tide | 7:02AM1.10m | 7:01PM1.72m | 7:51AM1.17m | 7:51PM1.74m | 8:37AM1.23m | 8:37PM1.71m | 9:20AM1.28m | 9:22PM1.63m | 10:02AM1.31m | 10:05PM1.50m | 10:43AM1.33m | 10:48PM1.35m | |||||||
Low Tide | 1:02AM0.05m | 12:29PM0.28m | 1:50AM-0.01m | 1:23PM0.24m | 2:35AM-0.03m | 2:14PM0.21m | 3:16AM-0.02m | 3:04PM0.21m | 3:54AM0.03m | 3:53PM0.23m | 4:30AM0.11m | 4:43PM0.29m | |||||||
— | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | |
— | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:24 | — | — | 5:24 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | 5 | 1 | 1 | 2 |
Temp °C | 14 | 18 | 17 | 13 | 18 | 17 | 14 | 16 | 15 | 12 | 16 | 15 | 14 | 15 | 15 | 14 | 14 | 14 | 14 |
Feels °C | 6 | 12 | 11 | 8 | 12 | 11 | 9 | 12 | 11 | 9 | 13 | 12 | 11 | 9 | 9 | 10 | 9 | 9 | 11 |
Swell 1 Height (m) Direction Period (s) | NE 10 | ENE 10 | S 10 | S 10 | S 9 | S 9 | S 8 | S 8 | S 8 | S 7 | S 8 | SSE 8 | SSE 7 | ENE 9 | ENE 9 | SSE 7 | ENE 10 | ENE 10 | S 8 |
137 | 83 | 461 | 365 | 170 | 97 | 65 | 230 | 277 | 127 | 134 | 96 | 89 | 17 | 17 | 157 | 18 | 20 | 54 | |
Swell 2 Height (m) Direction Period (s) | SSW 6 | S 12 | ENE 10 | ENE 9 | ENE 9 | E 10 | E 9 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | SSE 16 | ENE 9 | ENE 10 | SSE 16 | SSE 15 | S 13 |
4 | 96 | 74 | 50 | 50 | 48 | 44 | 31 | 29 | 29 | 18 | 18 | 17 | 24 | 17 | 18 | 26 | 21 | 14 | |
Swell 3 Height (m) Direction Period (s) | E 14 | S 7 | — | — | — | S 14 | — | S 16 | S 19 | S 13 | S 18 | SSE 20 | SSE 16 | E 14 | S 14 | S 18 | ENE 10 | — | — |
4 | 27 | — | — | — | 4 | — | 5 | 7 | 13 | 7 | 37 | 25 | 4 | 4 | 7 | 19 | — | — | |
Wind waves Height (m) Direction Period (s) | WSW 4 | W 3 | W 2 | WNW 3 | WNW 3 | W 3 | WSW 4 | — | S 8 | W 2 | W 3 | — | S 7 | S 7 | S 7 | — | SSE 7 | SSE 7 | SE 8 |
24 | 6 | 1 | 2 | 1 | 4 | 10 | — | 448 | 1 | 1 | — | 159 | 255 | 240 | — | 181 | 231 | 512 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 144 | 80 | 3 | 3 | 3 | 3 | 0 | 0 | 57 | 0 | 0 | 107 | 0 | 57 | 57 | 95 | 158 | 90 | 219 |
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.











