Surf Forecasts:
Flatrock surf forecast from 10 Jul 2026:
- Best quality surf: Monday 13 Jul, 3AM (local time) - 18ft (5.5m), 16s period, SW swell with onshore winds.
- Most powerful swell: Monday 13 Jul, 9PM (local time) - 16ft (5.0m), 17s period, SW swell with 14,647 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 3AM (local time) - 18ft (5.5m), 16s 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 Monday (Jul 13) at 3AM. The primary swell is predicted to be 5.5m and 16s period with a secondary swell of 4.0m and 16s. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Flatrock in the next 16 days are 5.0m 17s and forecast to arrive on Monday (Jul 13) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Jul 16) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 13th Jul) | 18ft (5.5m) 16s |
| Best Surf | 3AM (Mon 13th Jul) | 18ft (5.5m) 16s |
| Most Powerful | 9PM (Mon 13th Jul) | 16ft (5.0m) 17s |
Table - best surf conditions forecast for Flatrock over the next 16 days.
Alright, Rusty here. Let's have a look at what's cookin'.
We're starting off with a bit of a rough patch, I won't lie to you. Saturday the 11th and Sunday the 12th are total write-offs. That southwest swell is there, but it's big and messy, with strong winds just blowing everything to bits. Not something you'd want to paddle out into.
The real action gets going next week. Monday the 13th is a standout, but only if you're an expert. We're looking at a massive 16ft southwest swell, and the combined swell energy is absolutely pumping at (20,658). That's some serious power. The wind is clean, but for anyone not at the top of their game, this is a day to watch from the shore. This level of power is for the brave.
Tuesday the 14th is similar, another 16ft pulse from the SW, with a slightly more manageable cross-onshore wind. Still a beast, still for experts only, with that combined energy at (17,992).
Now, for the rest of us. Wednesday the 15th is the session to circle. The swell drops to a much friendlier 8ft from the southwest, and in the morning we get a light offshore breeze from the NNE, keeping things clean. By the afternoon, it goes glassy, dead calm. The wave period is a long 15 seconds, so those sets will have some real push to them. This is clean, lined-up surf for experienced surfers.
After that, it's a bit of a mixed bag. Thursday the 16th through to Tuesday the 21st sees the swell dropping in and out, but the winds are often messy or the conditions are just not quite right. Thursday the 24th of July is another one to keep an eye on. A 7ft SSW swell with a light offshore wind from the ENE. Should be clean with that swell period of 15 seconds.
The water temp is sitting at 59°, which is about normal for this time of year, so no major surprises there.
So to sum it up: the start of the period is a bust. The real standout is Wednesday the 15th at Flatrock. The other one worth mentioning is Friday the 24th of July, but a week and a half away, so don't lock it in yet.
Stay safe, have fun, and I'll see you out there.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sat morning. Very mild (max 15°C on Sun morning, min 11°C on Sat morning). Winds decreasing (near gales from the WSW on Sat morning, moderate winds from the SW by Mon night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Thu afternoon, min 13°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
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 9 | SW 12 | SW 13 | SW 12 | SW 13 | SW 16 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 15 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1588 | 3612 | 4192 | 3417 | 3932 | 7573 | 13272 | 7353 | 14308 | 11261 | 5998 | 4356 | 3135 | 2684 | 2004 | 1368 | 1344 | 2643 | 2374 | 1563 | 1063 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | cross-on | glassy | cross-off | glassy | cross-off | cross | cross-on | cross-off | cross-off | cross | cross-off |
High Tide | 10:55AM0.51m | 11:46AM0.57m | 1:08AM0.10m | 12:29PM0.61m | 00:54AM0.11m | 1:07PM0.63m | 00:57AM0.13m | 1:39PM0.62m | 1:10AM0.18m | 2:06PM0.59m | 1:34AM0.23m | 2:27PM0.54m | 2:06AM0.29m | ||||||||
Low Tide | 8:36PM0.07m | 8:44PM0.05m | 9:00PM0.06m | 4:44AM0.06m | 9:13PM0.08m | 5:40AM0.03m | 9:17PM0.11m | 6:27AM0.02m | 9:15PM0.13m | 7:10AM0.03m | 9:13PM0.13m | ||||||||||
 |  |  |  |  |  |  | | | | |  | | | | | |  | | | | |
 | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — |
 | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — | — | 5:36 | — |
mm | 1 | 1 | — | — | — | 1 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 15 | 15 | 14 | 16 | 16 | 14 | 16 | 16 |
Feels °C | 1 | 1 | 6 | 7 | 9 | 9 | 9 | 8 | 9 | 12 | 13 | 14 | 12 | 14 | 12 | 9 | 12 | 12 | 8 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | — | SSW 22 | SW 20 | SW 16 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 15 | SW 14 |
| kJ | — | — | — | 46 | 186 | 7573 | 13272 | 7353 | 14308 | 11261 | 5998 | 4356 | 3135 | 2684 | 2004 | 1368 | 1344 | 2643 | 2374 | 1563 | 1063 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 14 | SSW 20 | SW 18 | S 11 | SSE 12 | SSE 11 | S 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 36 | 152 | 727 | 66 | 47 | 25 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 20 | S 12 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 188 | 102 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 9 | SW 12 | SW 13 | SW 12 | SW 13 | — | SW 16 | — | SW 17 | SW 16 | — | — | — | — | — | N 4 | NNW 4 | NW 6 | NNW 5 | NW 6 | NNW 4 |
| kJ | 1588 | 3612 | 4192 | 3417 | 3932 | — | 7386 | — | 8643 | 6731 | — | — | — | — | — | 10 | 25 | 31 | 26 | 24 | 23 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 884 | 1125 | 1125 | 1339 | 1454 | 884 | 1341 | 1458 | 884 | 894 | 1120 | 0 | 0 | 0 | 74 | 44 | 42 | 44 | 42 | 42 | 44 |
Best forecast wave conditions in Eyre Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Flatrock surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
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