Surf Forecasts:
Flatrock surf forecast from 11 Jul 2026:
- Best quality surf: Monday 13 Jul, 9AM (local time) - 16ft (5.0m), 16s period, SW swell with onshore winds.
- Most powerful swell: Tuesday 14 Jul, 12AM (local time) - 16ft (5.0m), 17s period, SW swell with 14,733 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 9AM (local time) - 16ft (5.0m), 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 9AM. The primary swell is predicted to be 5.0m and 16s period with a secondary swell of 2.1m and 19s. Another secondary swell of 4.0m and 16s is also forecast. 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 Tuesday (Jul 14) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Saturday (Jul 18) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 13th Jul) | 16ft (5.0m) 16s |
| Best Surf | 9AM (Mon 13th Jul) | 16ft (5.0m) 16s |
| Most Powerful | 12AM (Tue 14th Jul) | 16ft (5.0m) 17s |
Table - best surf conditions forecast for Flatrock over the next 16 days.
Alright, Rusty here. Let’s talk about what’s happening at Flatrock.
We’ve got a bit of a slow start with some real angry conditions kicking things off. The first few days are a write-off: Saturday and Sunday the 11th and 12th are blown out with strong winds, messy chop, and junk surf. Not worth paddling out.
The real standout, and I mean the only one worth circling on the calendar, is Wednesday the 15th at Flatrock. That morning, we’re looking at a clean 2.5m (about 8ft) SW groundswell with a nice long 14-second period, light offshore breeze, and it’s glassy by the afternoon. Combined swell energy is moderate (2873), but the quality will be there for experienced surfers. This is a reef break and it’s exposed to that SW swell. The longer period means better shaped waves and easier paddling between sets, but at this size and with it being a reef, it’s definitely not one for beginners. The crowds can show up sometimes, so keep an eye out.
The week before that, Monday the 13th and Tuesday the 14th just have too much size—up to 5.0m (about 16ft)—and even with favorable wind and tide, the swell is simply overpowering the break. Thursday the 16th and Friday the 17th drop a bit in size but the conditions are only marginal, with moderate winds bringing some chop.
The second week is mostly poor to marginal. Saturday the 18th through to Sunday the 26th is a long stretch of onshore or strong cross-shore winds, lumpy conditions, and messy surf. There’s a pulse of bigger swell again around the 23rd and 24th, but with near gale-force winds and rough seas, it’s a pass. No standouts there.
Water temperature is sitting around 59°, which is about average for this time of year, so nothing unusual there.
If you’re looking for a paddle, your best bet is that Wednesday the 15th. It’s the only window with clean, glassy conditions and a solid swell. Everything else is either too big, too windy, or too chopped up to enjoy.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sat morning. Very mild (max 15°C on Sun afternoon, min 11°C on Sat morning). Mainly strong winds. | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Thu afternoon, min 13°C on Tue night). 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 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 15 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1398 | 3476 | 3959 | 3278 | 3932 | 7173 | 11070 | 7858 | 14733 | 11624 | 5998 | 4243 | 2873 | 2296 | 1649 | 1500 | 1253 | 3182 | 3021 | 1801 | 978 |
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-off | 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 | 13 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 15 | 15 | 14 | 16 | 15 | 12 | 16 | 16 |
Feels °C | 2 | 2 | 6 | 6 | 9 | 8 | 9 | 8 | 9 | 10 | 12 | 14 | 12 | 14 | 12 | 9 | 15 | 11 | 5 | 12 | 9 |
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 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 15 | SW 14 |
| kJ | — | — | — | 46 | 186 | 7173 | 11070 | 7858 | 14733 | 11624 | 5998 | 4243 | 2873 | 2296 | 1649 | 1500 | 1253 | 3182 | 3021 | 1801 | 978 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 19 | — | — | — | — | — | — | — | S 13 | SW 20 | SW 18 | S 11 | SSE 12 | SSE 11 | WNW 6 |
| kJ | — | — | — | — | — | — | 3097 | — | — | — | — | — | — | — | 14 | 188 | 621 | 64 | 47 | 25 | 12 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 13 | S 12 | — | — | — | S 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 51 | 25 | — | — | — | 9 |
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 | — | — | — | — | N 3 |
| kJ | 1398 | 3476 | 3959 | 3278 | 3932 | — | 7479 | — | 8643 | 7126 | — | — | — | — | — | 9 | — | — | — | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 884 | 1125 | 1125 | 1339 | 1477 | 881 | 1189 | 1189 | 884 | 894 | 126 | 0 | 0 | 0 | 74 | 44 | 42 | 74 | 44 | 42 | 44 |
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)
FREE! Surf-Forecast.com widget for your website
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.
Nearest