
Surf Forecasts:
Flatrock surf forecast from 19 Jul 2026:
- Best quality surf: Sunday 26 Jul, 6AM (local time) - 6ft (1.9m), 12s period, SW swell with glassy winds.
- Most powerful swell: Thursday 23 Jul, 3PM (local time) - 13ft (4.0m), 15s period, SW swell with 7,970 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 6AM (local time) - 6ft (1.9m), 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 Sunday (Jul 26) at 6AM. The primary swell is predicted to be 1.9m and 12s period with a secondary swell of 0.1m and 21s. 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 Thursday (Jul 23) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 26th Jul) | 6ft (1.9m) 12s |
| Best Surf | 6AM (Sun 26th Jul) | 6ft (1.9m) 12s |
| Most Powerful | 3PM (Thu 23rd Jul) | 13ft (4.0m) 15s |
Table - best surf conditions forecast for Flatrock over the next 16 days.
The Lowdown
Alright, Rusty here. Let's get into what's cooking at Flatrock.
Right off the bat, I gotta be straight with you – the first few days are looking pretty ordinary. It's not that there's no swell, it's just the wind and conditions are making a mess of things.
Sunday the 19th through to Wednesday the 23rd of July... it's a bit of a write-off. We've got a SW groundswell coming in, but the wind's all wrong. It's coming from the north and northwest, creating a nasty cross-shore chop. The wave energy is actually getting up there, but it's all for nothing when the surface looks like a washing machine. The water temp is sitting at a pretty average 60°F for this time of year.
Now, everything changes on Thursday the 23rd. Thursday morning we're looking at a solid 13ft SW groundswell, with a period of 14 seconds, and the wind swings around to the south at 12 mph, keeping it cross-shore. This is where it gets interesting. The model is giving decent marks here, and that's because it's a big, powerful groundswell with manageable wind. But heads up, this is purely an expert zone. At 13ft, this is not for the faint of heart.
Thursday the 23rd is the standout of the first week. The swell is from the southwest, which is the optimum direction for Flatrock. It's going to be a big, powerful day. Get on it if you have the skills.
Things get messy again from Friday the 24th through Tuesday the 29th of July. The wind is either onshore or cross-onshore from the west and southwest, not cleaning it up at all. The swell size hangs around 7ft to 13ft, but the quality is poor. Some days the wind is hitting near gale force, like 31 mph on the 28th, making it totally unsurfable. Honestly, for a beach and reef setup like this, those strong onshore days are more for the kite surfers.
Finally, there's a light at the end of the tunnel. Wednesday the 31st of July morning into Saturday the 2nd of August looks promising. The wind goes light and clean, from the southeast and east. We're looking at clean cross-offshore and offshore winds. The swell drops back to a more manageable size. Thursday the 1st of August is a real standout. We've got a 3ft SW groundswell with a long 16-second period and light offshore winds from the east. The model loves this – calling it "very good surf conditions". It's the combination of that long-period groundswell and glassy offshore wind that makes it special.
Saturday the 2nd of August is also worth a look. The morning swell jumps back up to 10ft from the WSW, still with clean winds, but that's expert territory again. The afternoon sees it drop to a clean 6ft with a very long 21-second period. That's a dream session for the experienced crew on the points.
Sunday the 3rd of August... the model is screaming caution. We have a huge 15ft WSW swell with a 16-second period in the morning. The wind is perfect, offshore, but the model is saying it's predicted to be too big for this break. It might just close out or be unrideable, even for experts. The afternoon is a bit more manageable at 10ft with the same perfect wind.
So, to boil it down for you: Thursday the 23rd of July and Thursday the 1st of August are your two best bets. The 23rd is for the big-wave chargers, the 1st is a more user-friendly, long-period clean swell. The rest of the 16-day window is a battle with the wind for the most part.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Very mild (max 16°C on Sun afternoon, min 13°C on Sun morning). Winds increasing (light winds from the N on Mon night, fresh winds from the SW by Tue night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed afternoon. Very mild (max 14°C on Wed morning, min 11°C on Wed night). Winds decreasing (fresh winds from the SSW on Wed afternoon, light winds from the SSW by Thu night). | ||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||
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 19 | SW 18 | SW 16 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 14 | SW 12 | SW 14 | SW 14 | SW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 |
Wave Graph | |||||||||||||||||||||
303 | 1227 | 1456 | 1377 | 1776 | 1632 | 1137 | 974 | 551 | 1549 | 1468 | 7342 | 7176 | 7970 | 4372 | 2842 | 2313 | 2216 | 1859 | 1803 | 1216 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | on | on | on | cross-on | cross-on | cross-on |
High Tide | 2:54PM0.44m | 3:23AM0.36m | 3:02PM0.40m | 4:08AM0.37m | 3:03PM0.36m | 4:59AM0.37m | 2:50PM0.33m | 6:14AM0.37m | 1:25PM0.32m | 9:36AM0.38m | 11:03AM0.43m | ||||||||||
Low Tide | 9:21PM0.09m | 9:02AM0.15m | 9:34PM0.07m | 9:39AM0.21m | 9:51PM0.06m | 10:18AM0.26m | 10:08PM0.06m | 11:31AM0.32m | 10:24PM0.07m | 10:29PM0.09m | 9:39PM0.11m | ||||||||||
7:31 | — | — | 7:31 | — | — | 7:30 | — | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — | |
— | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | |
mm | — | — | — | — | — | — | — | — | 2 | — | 1 | 1 | — | — | — | — | — | — | 1 | — | — |
Temp °C | 13 | 16 | 16 | 14 | 15 | 15 | 15 | 15 | 15 | 14 | 13 | 12 | 11 | 11 | 11 | 12 | 12 | 13 | 14 | 15 | 14 |
Feels °C | 7 | 12 | 12 | 9 | 12 | 12 | 11 | 12 | 12 | 7 | 6 | 6 | 5 | 5 | 7 | 6 | 6 | 8 | 10 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 18 | SW 16 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 13 | — | SW 14 | SW 14 | SW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 |
240 | 1227 | 1456 | 1377 | 1776 | 1632 | 1137 | 974 | 551 | 852 | — | 7342 | 7176 | 7970 | 4372 | 2842 | 2313 | 2216 | 1859 | 1803 | 1216 | |
Swell 2 Height (m) Direction Period (s) | SW 19 | S 10 | SSW 10 | S 10 | S 10 | S 10 | — | — | SW 14 | — | — | — | — | — | — | — | — | — | WSW 18 | — | S 22 |
303 | 55 | 20 | 8 | 8 | 7 | — | — | 211 | — | — | — | — | — | — | — | — | — | 31 | — | 9 | |
Swell 3 Height (m) Direction Period (s) | SW 15 | — | S 10 | — | — | — | — | — | S 14 | — | — | — | — | — | — | — | — | — | — | — | — |
33 | — | 50 | — | — | — | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NW 4 | NW 6 | NW 7 | NW 5 | — | — | — | — | WNW 4 | SW 14 | SW 12 | SSW 15 | SSW 14 | SSW 16 | — | — | — | — | — | — | — |
23 | 61 | 85 | 60 | — | — | — | — | 20 | 1549 | 1468 | 4936 | 4568 | 5287 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 44 | 42 | 44 | 74 | 78 | 44 | 44 | 151 | 162 | 881 | 894 | 871 | 153 | 1121 | 126 | 221 | 361 | 361 | 698 | 692 | 74 |
Best forecast wave conditions in Eyre Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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.










