
Surf Forecasts:
Flatrock surf forecast from 1 Aug 2026:
- Best quality surf: Thursday 6 Aug, 9PM (local time) - 8ft (2.5m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 3 Aug, 3AM (local time) - 13ft (4.0m), 15s period, SW swell with 7,164 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 3AM (local time) - 7ft (2.1m), 12s period with SW swell.
Best Forecast Surf Conditions for Flatrock this week:
The surf forecast for Flatrock over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 04) at 3AM. The primary swell is predicted to be 2.1m and 12s period with a secondary swell of 0.9m and 16s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Flatrock in the next 16 days are 4.0m 15s and forecast to arrive on Monday (Aug 03) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Aug 05) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Tue 4th Aug) | 7ft (2.1m) 12s |
| Best Surf | 9PM (Thu 6th Aug) | 8ft (2.5m) 16s |
| Most Powerful | 3AM (Mon 3rd Aug) | 13ft (4.0m) 15s |
Table - best surf conditions forecast for Flatrock over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s on the menu for the next couple of weeks. We’ve got one spot to focus on, and it’s a bit of a tricky one. It’s a reef setup, so don’t expect a forgiving beach break – this one’s for the experienced crew.
The period kicks off with a massive pulse of energy. The first few days, from Saturday the 1st through Monday the 3rd, are a write-off. The wind is howling out of the north and west, and it’s either cross or onshore, making the ocean a lumpy, choppy mess. We’re talking a strong breeze that’s just smashing things up. Wait it out, don’t bother paddling out.
We finally get a window for the experienced surfers early on Tuesday morning, the 4th of August. The wind drops right out, going glassy with a light cross-offshore breeze. The swell is a solid 7 ft, but it’s got some serious grunt – a 17-second period groundswell with a combined energy of 2271. That’s a lot of power moving through. A long period like this on a reef can be a thing of beauty, offering up some proper, well-shaped lines. The water temp is sitting at 59°, which is about average for this time of year, nothing out of the ordinary.
The best of the best, the true standout, is locked in for Wednesday afternoon, the 5th of August. The swell drops back a touch to 4 ft, but the period is a dreamy 18 seconds, and the wind is light and cross-off. It’s clean, it’s glassy, and the quality will be there for the surfers who know what they’re doing. This is a big one to circle on the calendar. Just keep in mind, this spot can get a crowd, so you might have some company out there.
Thursday the 6th is okay, but the wind gets a little onshore, and the energy is a bit weaker. Then Friday the 7th brings a massive 10 ft swell with a 19-second period, but the wind is a fresh cross-off. That’s a lot of water moving, with a combined energy of 6035. That’s big, powerful, and only for the experts.
The second week gets chaotic. There’s a huge, messy swell arriving on the 10th of August, with a 13 ft wave and a combined energy of over 10,000. But the wind is onshore and messy. The 11th and 12th are just plain nasty, with gale-force winds and near-gale conditions that will make it a washing machine. Unless you’re a kite surfer, don’t even think about it.
Things settle down a bit towards the 15th and 16th. The 15th of August, Saturday morning and afternoon, looks promising with a clean 7 ft swell and a light cross-off breeze. It’s a good, solid option for the end of the run, but it’s not the same quality as that Wednesday afternoon window.
Overall, the clear winner is the Wednesday afternoon on the 5th of August. That’s your session. The Tuesday morning on the 4th is a solid second. The rest is a lot of waiting for the wind to play nice, or dealing with swell that’s just too big and messy.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun morning. Very mild (max 14°C on Sat afternoon, min 10°C on Sat morning). Winds decreasing (strong winds from the W on Sun morning, calm by Mon night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Thu afternoon, min 11°C on Tue morning). Mainly fresh winds. | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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) | SW 17 | SW 17 | SW 16 | SW 15 | SW 15 | SW 16 | SW 14 | SW 13 | SW 13 | SW 15 | SSW 15 | SW 20 | SW 19 | SW 18 | SW 16 | SW 16 | SW 18 | SW 16 | SW 19 | SW 17 | SW 16 |
Wave Graph | |||||||||||||||||||||
2778 | 3442 | 2727 | 3603 | 2597 | 5273 | 3725 | 2722 | 1671 | 1910 | 1508 | 899 | 828 | 915 | 1271 | 1087 | 2241 | 3710 | 5997 | 3997 | 2187 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | on | on | cross-on | cross-on | cross-on | cross | cross-off | cross-on | cross-off | cross | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross | cross-on |
High Tide | 2:12PM0.56m | 2:18AM0.36m | 2:33PM0.52m | 2:48AM0.39m | 2:51PM0.47m | 3:20AM0.41m | 3:05PM0.41m | 3:56AM0.42m | 3:05PM0.34m | 4:40AM0.42m | 2:26PM0.30m | 5:50AM0.40m | |||||||||
Low Tide | 8:45PM0.06m | 8:01AM0.04m | 8:59PM0.05m | 8:36AM0.07m | 9:12PM0.05m | 9:11AM0.11m | 9:24PM0.05m | 9:50AM0.18m | 9:31PM0.05m | 10:37AM0.25m | 9:30PM0.05m | 9:16PM0.04m | |||||||||
7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | |
— | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | |
mm | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 12 | 14 | 14 | 14 | 14 | 14 | 13 | 12 | 12 | 11 | 11 | 11 | 13 | 15 | 15 | 14 | 16 | 15 | 17 | 18 | 17 |
Feels °C | 4 | 7 | 8 | 6 | 6 | 6 | 7 | 7 | 8 | 9 | 8 | 7 | 8 | 12 | 11 | 9 | 12 | 11 | 9 | 11 | 6 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 17 | SW 16 | SW 15 | SW 15 | — | SW 20 | SW 13 | SW 13 | SW 15 | SSW 15 | SSW 14 | SSW 15 | SW 18 | SW 16 | SW 16 | SW 18 | SW 16 | SW 19 | SW 17 | SW 16 |
2778 | 3442 | 2727 | 3062 | 2597 | — | 97 | 2722 | 1671 | 1910 | 1508 | 899 | 720 | 915 | 1271 | 1087 | 2241 | 3710 | 5997 | 3997 | 2187 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 18 | SW 17 | S 10 | SW 22 | SSW 20 | SW 19 | SW 14 | SSW 8 | SW 20 | — | — | SE 8 | — | — |
— | — | — | — | — | — | — | 327 | 434 | 361 | 120 | 691 | 828 | 541 | 19 | 309 | — | — | 10 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SW 22 | SW 20 | S 8 | NNW 5 | SSE 8 | SSE 7 | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | 227 | 851 | 65 | 20 | 19 | 10 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 4 | NW 6 | NW 7 | SW 15 | — | SW 16 | SW 14 | — | — | — | — | — | N 4 | — | — | NW 5 | — | E 8 | N 4 | NNW 4 | NW 5 |
25 | 72 | 143 | 3603 | — | 5273 | 3725 | — | — | — | — | — | 9 | — | — | 6 | — | 50 | 28 | 27 | 42 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 44 | 151 | 204 | 799 | 799 | 881 | 361 | 871 | 126 | 0 | 42 | 74 | 42 | 0 | 0 | 42 | 42 | 89 | 204 | 204 | 322 |
Best forecast wave conditions in Eyre Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
Information about the Flatrock Surf forecast
The above surf forecast table for Flatrock provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Flatrock can be found by selecting the local surf guide option on the grey menu. Our Flatrock 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 (Flatrock) 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 Flatrock 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.
Are you planning a holiday in Eyre Peninsula? If you are looking for accommodation near Flatrock, camping, hotels and holiday cottages in Eyre Peninsula, consider staying in Port Lincoln which is 49 km (30 miles) away.











