
Surf Forecasts:
Flatrock surf forecast from 7 Jul 2026:
- Best quality surf: Sunday 12 Jul, 9PM (local time) - 16ft (5.0m), 14s period, SW swell with cross-onshore winds.
- Most powerful swell: Monday 13 Jul, 3AM (local time) - 18ft (5.5m), 15s period, SW swell with 12,464 kJ wave energy.
- Next surfable swell (1★+): Tuesday 7 Jul, 12PM (local time) - 6ft (1.9m), 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 Tuesday (Jul 07) at 12PM. The primary swell is predicted to be 1.9m and 16s period with a secondary swell of 0.9m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Flatrock in the next 16 days are 5.5m 15s and forecast to arrive on Monday (Jul 13) 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 0.8m 10s period and expected on Tuesday (Jul 07) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Tue 7th Jul) | 6ft (1.9m) 16s |
| Best Surf | 9PM (Sun 12th Jul) | 16ft (5.0m) 14s |
| Most Powerful | 3AM (Mon 13th Jul) | 18ft (5.5m) 15s |
Table - best surf conditions forecast for Flatrock over the next 16 days.
Updates in hr min s Forecast update imminent
Right, let’s have a look at what we’ve got for Flatrock. Only one spot on the radar here, and it’s an advanced reef break, fairly consistent but exposed. The water’s sitting at 60°, which is about 1° cooler than average for this time of year, so nothing too unusual there.
The week kicks off with some clean surf. Tuesday morning brings a 6 ft SW swell with a long 16-second period and a gentle cross-offshore breeze. The combined energy is pushing 1811, solid enough for a fun session if you’re dialled in. But Tuesday afternoon is where it gets real good—7 ft SW, still 16 seconds, with an offshore E wind at 6 mph. That’s the standout of the early window. Clean, powerful lines for the experienced crew.
Wednesday morning pumps up to 10 ft SW, 17 seconds, and the combined energy jumps to 4856. That’s a serious groundswell, very long period, so think about how it hits the reef—these pulses can be potent. Wind is cross-off, still clean. Then Wednesday afternoon? Glassy. 8 ft SW, 16 seconds, with NNW wind at just 3 mph. That’s about as good as it gets for this break. If you can get out there, that’s your best bet early on.
Thursday sees the swell back to 6 ft and 7 ft, still long-period, but the wind turns cross-on during the afternoon and it gets messy. From Thursday afternoon onward, it’s a slow decline. Friday and Saturday are blown out with rain showers and strong onshore winds—12 ft swell on Sunday with fresh onshore wind means big, ugly, unsurfable conditions.
Monday the 13th sees another pulse—10 ft SSW moving to 13 ft SSW, but the wind is cross-on and a bit soft. The combined energy is massive, hitting over 9000, but the wind’s not helping. This is more for the chargers with big-wave boards and a tolerance for chop. Tuesday the 14th has clean-ish conditions with onshore wind, but the swell is still big—10 ft and 8 ft.
Then, a real treat for the patient surfer: Wednesday the 15th is glassy again—8 ft SW, 14 to 15 seconds, with no wind both morning and afternoon. That’s another clean window, but you’re looking at a two-week wait. After that, the second week gets increasingly windy and lumpy, with strong cross-onshore winds and big, messy swell up to 13 ft through to the 22nd.
There’s a long stretch from around the 17th through the 22nd where conditions are poor—heavy wind, rain, and choppy lines. Not worth paddling out unless you’re desperate. The surf is still there, but the quality drops hard.
So, the standout sessions are Tuesday afternoon the 7th, Wednesday morning the 8th, and that glassy Wednesday the 15th. If you’re keen on the early week, get on Tuesday afternoon—the wind’s perfect, the swell’s solid, and the combined energy is pushing 2095. For the longer look, Wednesday the 15th morning is a gem, though it’s a way off. The rest is either too big, too windy, or just plain messy.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu afternoon. Very mild (max 15°C on Tue afternoon, min 12°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Fri afternoon. Very mild (max 16°C on Sat morning, min 13°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | |||||||||||||||
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 16 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 17 | SW 16 | SW 15 | SW 15 | SW 14 | WSW 14 | SW 13 | SW 12 | SW 12 | SW 15 | SW 14 | SSW 15 | SSW 17 | SW 17 |
Wave Graph | |||||||||||||||||||||
1591 | 1958 | 3984 | 4856 | 3587 | 2214 | 1325 | 2813 | 2295 | 1882 | 1547 | 1063 | 1886 | 1810 | 1973 | 4082 | 5157 | 10348 | 4145 | 9083 | 7870 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | glassy | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | on |
High Tide | 4:11PM0.37m | 5:58AM0.34m | 4:07PM0.30m | 7:51AM0.37m | 9:46AM0.44m | 10:55AM0.51m | 11:46AM0.57m | 1:08AM0.10m | 12:29PM0.61m | 00:54AM0.11m | |||||||||||
Low Tide | 10:04AM0.18m | 11:01PM0.11m | 11:32AM0.25m | 11:18PM0.12m | 11:24PM0.12m | 10:08PM0.11m | 8:36PM0.07m | 8:44PM0.05m | 9:00PM0.06m | ||||||||||||
7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | |
— | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | |
mm | — | — | — | — | — | — | — | 1 | 2 | 2 | 3 | 2 | — | 1 | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 14 | 14 | 15 | 15 | 14 | 14 | 14 | 15 | 14 | 15 | 16 | 15 | 14 | 15 | 15 | 15 | 14 | 14 | 14 |
Feels °C | 12 | 13 | 9 | 11 | 13 | 13 | 11 | 11 | 10 | 11 | 10 | 11 | 10 | 8 | 11 | 8 | 9 | 9 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 17 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 23 | SW 14 | SSW 15 | SSW 17 | SW 17 |
1591 | 1958 | 3984 | 4856 | 3587 | 2214 | 1325 | 2813 | 2295 | 1882 | 1547 | 1063 | 1179 | 854 | 1973 | 4082 | 86 | 10348 | 4145 | 9083 | 7870 | |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 10 | SW 14 | — | — | — | SW 19 | — | — | — | — | — | — | — | WSW 13 | — | SSW 24 | SW 18 | SSW 19 | — | — |
220 | 137 | 1500 | — | — | — | 546 | — | — | — | — | — | — | — | 504 | — | 55 | 614 | 3973 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 21 | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 361 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | SE 10 | — | — | — | — | — | — | — | W 4 | WNW 4 | WSW 14 | SW 13 | SW 12 | SW 13 | SW 15 | SW 15 | — | — | — |
— | — | 45 | — | — | — | — | — | — | — | 12 | 22 | 1886 | 1810 | 1610 | 2497 | 5157 | 5860 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 74 | 0 | 0 | 0 | 0 | 0 | 0 | 42 | 44 | 44 | 151 | 162 | 899 | 884 | 316 | 884 | 884 | 884 | 198 | 162 | 151 |
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.










