
Surf Forecasts:
Flatrock surf forecast from 7 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 6AM (local time) - 10ft (3.0m), 18s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 14 Jul, 3AM (local time) - 13ft (4.0m), 16s period, SW swell with 7,881 kJ wave energy.
- Next surfable swell (1★+): Wednesday 8 Jul, 6AM (local time) - 10ft (3.0m), 18s 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 Wednesday (Jul 08) at 6AM. The primary swell is predicted to be 3.0m and 18s period. 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 4.0m 16s and forecast to arrive on Tuesday (Jul 14) at 3AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Wed 8th Jul) | 10ft (3.0m) 18s |
| Best Surf | 6AM (Wed 8th Jul) | 10ft (3.0m) 18s |
| Most Powerful | 3AM (Tue 14th Jul) | 13ft (4.0m) 16s |
Table - best surf conditions forecast for Flatrock over the next 16 days.
Righto, let’s have a look at what we’ve got. The first few days aren’t much to write home about for most, but there are windows of absolute magic for those who know what they’re doing. Flatrock (reef) is the only spot on the radar in this 16-day stretch, and it’s an advanced-only wave, so the beginners can sit this one out. The water temp is about average for the time of year, nothing out of the ordinary.
Wednesday 8th July starts clean and promising. A solid 10 ft SW groundswell with a long 17-second period rolls in, packing some serious grunt – combined energy is a whopping 4856 (strong to very strong). The morning breeze is a light cross-off from the NE at 6 mph, so it’ll be clean. This is a standout for experienced surfers only; anything over 8 ft is expert territory. The afternoon goes glassy with a light SE breeze and 8 ft SW swell, but the period is still a meaty 16 seconds. Crowds can show up here, but with conditions this good, it’s a justified line-up.
Thursday 9th July holds solid with 6 ft SW swell and 15-second period in the morning under a light cross-off breeze. Still clean, still powerful. The afternoon gets a bit messy as the wind swings cross-on, so the morning window is the pick.
Now, Friday 10th through to Tuesday 14th July is a write-off. Strong onshore winds, rain, and choppy conditions ruin what is otherwise a consistent run of sizeable SW groundswell. Not worth paddling out.
The next real standout hits Wednesday 15th July. The morning sees a clean 10 ft SW groundswell with a 15-second period under a light cross-off breeze from the SSE at just 3 mph. The energy is still strong (3665), and it’s glassy. Another expert-only day but one of the best of the window. Crowds are a possibility, but the quality will have everyone frothing.
Thursday 16th July is the absolute gem of the entire 16-day outlook. The afternoon session delivers an exceptional 8 ft SSW groundswell with a very long 21-second period, combined energy hitting 7977 (very strong). The wind goes glassy from the WNW at 3 mph. For a reef break, that long-period groundswell is a dream – expect long, racy lines, but it’ll be barrelling. This is a top-tier session for experts. Crowds are likely, but you’d be bonkers to miss it. The morning is also very good with 8 ft SW swell and clean conditions.
Friday 17th July starts to degrade with a cross-shore breeze and a moderate chop, so the clean windows are gone. Saturday 18th and Sunday 19th get blown out by strong winds and lumpy seas, even though there’s still some swell. Not worth it.
Monday 20th and Tuesday 21st stay messy with onshore winds and poor conditions. The swell drops off, with period shortening. The combined energy dips below 1400, so weak to moderate. Not recommended.
Wednesday 22nd July shows a glimmer. The afternoon has a 10 ft SW groundswell with a 16-second period and moderate cross-shore wind – combined energy of 7904 is very strong. It’s scored as marginal due to the wind, so if you’re a glutton for punishment and expert, it might offer some unruly power. Thursday 23rd July closes the window with a moderate cross-onshore breeze and messy conditions again.
Overall, the standout sessions are Wednesday 15th July morning and Thursday 16th July afternoon. That afternoon on the 16th is the pick of the bunch – glassy, long-period groundswell, and pumping waves. Everything else is either blown out or for experts only.
Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Fri morning. Very mild (max 16°C on Wed afternoon, min 13°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Fri night. Very mild (max 15°C on Fri night, min 12°C on Sat afternoon). Winds decreasing (strong winds from the WSW on Sat morning, moderate winds from the W by Mon afternoon). | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 17 | SW 16 | SW 15 | SW 15 | SW 14 | SW 9 | SW 11 | SW 12 | SW 12 | SW 12 | SW 13 | SW 16 | SSW 17 | SW 17 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||||
3984 | 4856 | 3587 | 2214 | 1325 | 2684 | 2266 | 1776 | 1452 | 984 | 1163 | 2581 | 5801 | 2489 | 2341 | 2693 | 7037 | 7712 | 6788 | 4461 | 3953 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | glassy | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | on | on | cross-on | cross-on |
High Tide | 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 | 1:07PM0.63m | |||||||||||
Low Tide | 11:01PM0.11m | 11:32AM0.25m | 11:18PM0.12m | 11:24PM0.12m | 10:08PM0.11m | 8:36PM0.07m | 8:44PM0.05m | 9:00PM0.06m | 4:44AM0.06m | ||||||||||||
— | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | |
— | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | |
mm | — | — | — | — | — | — | — | 1 | 1 | 3 | 2 | — | — | 2 | 1 | 2 | — | 1 | 1 | — | 1 |
Temp °C | 14 | 15 | 16 | 15 | 14 | 15 | 15 | 14 | 15 | 15 | 13 | 13 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
Feels °C | 9 | 13 | 15 | 12 | 11 | 14 | 13 | 10 | 10 | 9 | 5 | 4 | 7 | 6 | 8 | 8 | 9 | 10 | 11 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 17 | SW 16 | SW 15 | SW 15 | SW 14 | — | — | SW 12 | SW 22 | SW 20 | SW 13 | SW 16 | SSW 17 | SW 17 | SW 16 | SW 16 |
3984 | 4856 | 3587 | 2214 | 1325 | 2684 | 2266 | 1776 | 1452 | 984 | — | — | 5801 | 19 | 188 | 2693 | 7037 | 7712 | 6788 | 4461 | 3953 | |
Swell 2 Height (m) Direction Period (s) | SW 14 | — | — | — | SW 20 | — | — | — | — | — | — | — | — | SSW 22 | SW 20 | SW 17 | — | — | — | — | — |
1500 | — | — | — | 455 | — | — | — | — | — | — | — | — | 46 | 388 | 1207 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | SSE 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 21 | — | — | — | — | — |
46 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 445 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 10 | — | — | — | — | — | — | — | NW 4 | W 5 | SW 9 | SW 11 | SW 13 | SW 12 | SW 12 | — | — | — | — | — | — |
45 | — | — | — | — | — | — | — | 7 | 114 | 1163 | 2581 | 3403 | 2489 | 2341 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 42 | 42 | 151 | 151 | 315 | 1189 | 871 | 884 | 1339 | 884 | 884 | 317 | 316 | 316 | 316 | 316 |
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.











