
Surf Forecasts:
Cowries surf forecast from 4 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 1AM (local time) - 11ft (3.5m), 10s period, SSE swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 4PM (local time) - 10ft (3.0m), 12s period, S swell with 2,671 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 10PM (local time) - 1.5ft (0.4m), 11s 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 Friday (Sep 04) at 10PM. The primary swell is predicted to be 0.4m and 11s period with a secondary swell of 0.6m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cowries in the next 16 days are 3.0m 12s and forecast to arrive on Thursday (Sep 10) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Sep 06) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Fri 4th Sep) | 1.5ft (0.4m) 11s |
| Best Surf | 1AM (Tue 8th Sep) | 11ft (3.5m) 10s |
| Most Powerful | 4PM (Thu 10th Sep) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Cowries over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming down the pipe for the next couple of weeks.
Honestly, if you’re itching for a wave right now, you’re going to be waiting a bit. The first proper surf doesn’t really show up until Monday the 7th. Before that, we’re looking at a few days of tiny, weak slop that’s barely worth a paddle. The waiting game is on.
Monday morning, September 7th is when things perk up a little. We’ve got a 4 ft south swell, but the period is short, just 8 seconds, so it’s not a groundswell with any real punch. The real winner here is the wind: glassy. Total calm. That’s going to clean up the 4 ft waves nicely, making for a few glassy runners. The combined energy is moderate (214), so you’ll find some fun ones, but it’s not going to blow your mind. Cowries is a reef and point break, so it handles that short period better than a beach would, and the water temp is about average for this time of year.
Tuesday morning, September 8th is the standout of the whole forecast. The swell jumps to 8 ft from the south, still short period at 8 seconds, but the combined energy is strong at 1338. That’s a significant step up in power. The wind is clean, coming cross-off the south at 15 km/h. This is going to be a solid session for the experienced crew – 8 ft is a bit much for beginners. The break is fairly exposed to the south swell, and with the optimum direction being ENE, we’re getting a decent amount of energy wrapping in. This is the one to circle on the calendar.
Wednesday September 9th drops back to a 3 ft south swell with gentle cross-off winds. It’s surfable but ordinary. Thursday September 10th sees a bigger pulse again, with 8 ft south swell building through the day. The morning has a cross-shore wind, but by Thursday afternoon, the wind is cross-off and the energy is very strong (3054). The period stretches to 10 seconds, so there’s more shape and power. Again, this is expert territory at 8 ft, and the cross-off wind will keep it clean.
Friday September 11th holds at 7 ft from the SSE with a period of 11 seconds – that’s a proper groundswell. The combined energy is still strong (939). The wind is cross-off in the morning, but goes cross-shore in the afternoon. The long period (11 seconds) means better shape and more driving lines, but at a beach break it can get a bit straight. Cowries being a reef/point will handle this beautifully.
Saturday September 12th morning is a gem. The swell drops to a manageable 4 ft from the SSE, still with that long 11-second period, and the wind is glassy. Total freedom. The combined energy is moderate (439). This is a fantastic morning for a longboard or a funboard, with clean, rolling lines. The water is still average for the season.
After that, things get messy. From Sunday the 13th through to the end of the forecast, the swell drops, the wind swings onshore, and we get a run of poor conditions. The wind is strong and cross-onshore, turning the waves into lumpy, choppy junk. There’s a brief window on Tuesday September 15th morning with a 4 ft south swell and light cross-off wind, but it’s nothing special. By the 18th and 19th, we’ve got 45 km/h winds and rain. The waves are up to 6 ft but with that wind, it’s a washout. For the kites and foils, that’s a different story.
So, to sum it up: the best bet is Tuesday morning the 8th for the biggest, cleanest swell, and Saturday morning the 12th for the glassy, long-period fun. The rest is a long wait for a few moments of glory.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sat afternoon, min 13°C on Sat night). Winds increasing (calm on Fri morning, fresh winds from the WSW by Sat night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 20°C on Mon morning, min 9°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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) | S 10 | S 7 | S 11 | S 9 | S 10 | NE 7 | SSW 6 | S 8 | S 9 | S 8 | SSE 8 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 10 | S 11 | S 12 | SSE 12 |
Wave Graph | |||||||||||||||||||||
179 | 54 | 57 | 58 | 44 | 47 | 25 | 68 | 642 | 172 | 216 | 2377 | 763 | 1031 | 508 | 315 | 464 | 1601 | 1599 | 2671 | 1706 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | cross-on | cross-off | off | off | cross | off | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:27PM1.40m | 2:21AM0.95m | 2:40PM1.41m | 3:47AM0.95m | 3:54PM1.46m | 5:00AM1.00m | 4:59PM1.53m | 5:58AM1.09m | 5:56PM1.59m | 6:46AM1.18m | 6:46PM1.62m | 7:29AM1.27m | 7:33PM1.61m | ||||||||
Low Tide | 8:26PM0.34m | 7:51AM0.46m | 9:47PM0.29m | 9:09AM0.47m | 10:57PM0.22m | 10:24AM0.42m | 11:54PM0.14m | 11:28AM0.35m | 00:42AM0.07m | 12:24PM0.28m | 1:24AM0.04m | 1:15PM0.22m | 2:02AM0.04m | ||||||||
6:11 | — | — | 6:11 | — | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | |
— | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — |
Temp °C | 20 | 20 | 16 | 27 | 28 | 19 | 20 | 19 | 15 | 20 | 17 | 14 | 15 | 14 | 11 | 18 | 16 | 10 | 14 | 14 | 12 |
Feels °C | 17 | 18 | 14 | 23 | 25 | 14 | 15 | 16 | 12 | 18 | 12 | 6 | 12 | 12 | 9 | 15 | 11 | 3 | 7 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 7 | S 7 | S 9 | ENE 6 | NE 7 | SSW 6 | S 8 | S 9 | S 8 | E 10 | — | SSE 10 | SSE 10 | SSE 10 | SSE 9 | E 9 | S 20 | SSE 21 | SSE 11 | SSE 12 |
179 | 54 | 25 | 58 | 41 | 47 | 24 | 68 | 642 | 172 | 8 | — | 763 | 1031 | 508 | 315 | 2 | 31 | 246 | 1983 | 1706 | |
Swell 2 Height (m) Direction Period (s) | NE 8 | NE 8 | S 11 | NE 5 | S 10 | S 9 | NE 7 | NE 7 | NE 6 | E 10 | NE 8 | — | E 11 | E 10 | E 10 | — | S 16 | — | E 16 | SSE 24 | SSE 23 |
15 | 9 | 57 | 7 | 44 | 28 | 25 | 8 | 2 | 8 | 2 | — | 2 | 2 | 2 | — | 5 | — | 5 | 192 | 107 | |
Swell 3 Height (m) Direction Period (s) | ENE 10 | ENE 10 | E 4 | E 9 | E 9 | E 11 | S 8 | S 4 | E 10 | NE 8 | — | — | ENE 10 | — | NE 9 | NE 9 | E 16 | — | E 16 | E 16 | E 15 |
19 | 9 | 3 | 7 | 7 | 2 | 18 | 1 | 8 | 2 | — | — | 11 | — | 3 | 3 | 5 | — | 5 | 5 | 4 | |
Wind waves Height (m) Direction Period (s) | — | — | — | NNW 3 | NW 3 | WSW 4 | SW 6 | — | — | — | SSE 8 | SSE 10 | — | — | — | NNW 3 | SSE 9 | SSE 10 | S 11 | S 12 | — |
— | — | — | 1 | 2 | 10 | 47 | — | — | — | 216 | 2377 | — | — | — | 3 | 464 | 1601 | 1599 | 2671 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 10 | 0 | 10 | 3 | 111 | 0 | 10 | 0 | 0 | 123 | 90 | 2 | 63 | 0 | 0 | 237 | 90 | 10 | 299 | 10 |
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.










