
Surf Forecasts:
Flatrock surf forecast from 4 Jul 2026:
- Best quality surf: Sunday 5 Jul, 3AM (local time) - 10ft (3.0m), 18s period, SSW swell with offshore winds.
- Most powerful swell: Sunday 5 Jul, 6AM (local time) - 11ft (3.5m), 17s period, SSW swell with 6,678 kJ wave energy.
- Next surfable swell (1★+): Sunday 5 Jul, 3AM (local time) - 10ft (3.0m), 18s period with SSW 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 05) at 3AM. The primary swell is predicted to be 3.0m and 18s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Flatrock in the next 16 days are 3.5m 17s and forecast to arrive on Sunday (Jul 05) at 6AM. Winds are predicted to be offshore 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+) | 3AM (Sun 5th Jul) | 10ft (3.0m) 18s |
| Best Surf | 3AM (Sun 5th Jul) | 10ft (3.0m) 18s |
| Most Powerful | 6AM (Sun 5th Jul) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Flatrock over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, let’s get into it. Rusty here, and I’ve been staring at the charts for Flatrock. We’ve got a bit of a delayed start, but when it kicks off, it kicks off proper.
Right now, there’s nothing going on. The first real action shows up on Saturday the 4th of July. That’s when we start seeing some proper SW groundswell. The water temp is sitting at 60°F, which is pretty much normal for this time of year, nothing weird there.
Let’s talk about the standout. Without a doubt, the best session of this whole run looks like Sunday the 5th of July, first light. Flatrock’s an advanced reef break, and on Sunday morning it’s gonna be firing. You’ve got a solid 12ft swell rolling in from the SSW, with a very long 17-second period. That’s proper groundswell – plenty of energy (6602) and those long lulls between sets will make the paddle out a bit easier. Wind is clean offshore from the ENE at 12 mph. That’s a winning combo. This is for experts only though – 12ft is no joke. It stays good through to Sunday afternoon with a still sizeable 10ft and the same offshore wind.
Monday the 6th and Tuesday the 7th are still excellent, especially the mornings. Monday morning has clean 6ft SSW swell with gentle offshore wind (ENE 9 mph). Tuesday morning bumps back up to 6ft but with a 16-second period, also clean offshore wind. Both are for experienced surfers, but the energy is still big (1504 and 1767). Tuesday afternoon sees the wind swing cross-off, but the swell is a touch bigger at 7ft.
Wednesday the 8th is a bit of a mixed bag. Morning brings a big 10ft SW swell with a 17-second period, but the wind is cross-off from the NE at 9 mph, so it’ll be clean but tricky. The wave comment flags marginal conditions, so maybe not the pick. The energy is massive at 4856. Wednesday afternoon the wind goes cross-shore, which isn’t ideal.
By Thursday the 9th, things start to slide. The morning still has decent 6ft SW swell and light cross-off breeze (NNE 9 mph), but by the afternoon, the wind swings cross-onshore and it gets choppier.
Friday the 10th gets messy. Strong northerly cross-shore winds and later cross-onshore winds in the afternoon with rain. Not worth paddling out.
From Saturday the 11th through to Wednesday the 15th, it’s basically a write-off. Strong to near-gale winds from the west and southwest, constant cross-onshore, rain. The swell is there – even some huge 13ft days on the 13th and a massive 12ft SW groundswell on the 14th (energy over 10000!) – but the wind is just ruining it. For breaks like Flatrock, this kind of wind and swell combo is more interesting for kite surfing than paddling.
Thursday the 16th shows some light at the end of the tunnel. By the afternoon, we’ve got a clean 10ft SW swell with a fresh offshore ESE wind at 19 mph. The energy is back up at 5830. That’s a proper clean swell for experts again. Friday the 17th is a nice follow-up: 6ft SSW swell with moderate to gentle offshore winds (E and ENE). Clean, manageable for experienced surfers.
The last couple of days, Saturday the 18th and Sunday the 19th, are back to poor conditions with strong cross and cross-onshore winds from the NNW, and the swell drops right off.
So, the big standout is Sunday the 5th of July, first light. That’s the one you don’t miss. The secondary bright spot is Thursday the 16th afternoon.
Rusty
Short Range ForecastMostly dry. Very mild (max 14°C on Sat afternoon, min 10°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 16°C on Tue afternoon, min 12°C on Thu night). Winds increasing (light winds from the NNE on Wed afternoon, fresh winds from the NNW by Fri morning). | ||||||||||||||||||||
Sat 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 14 | SSW 15 | SSW 17 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 17 | SW 16 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 18 | SW 16 | SW 15 | SW 15 | SW 14 | SW 15 |
Wave Graph | |||||||||||||||||||||
1913 | 3597 | 6602 | 4643 | 2850 | 1504 | 928 | 1421 | 1591 | 1983 | 2272 | 4856 | 3334 | 2214 | 1325 | 1215 | 2901 | 1907 | 1308 | 825 | 301 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross | cross | cross-on | on | cross-on |
High Tide | 3:01AM0.28m | 3:23PM0.50m | 3:48AM0.30m | 3:50PM0.44m | 4:43AM0.31m | 4:11PM0.37m | 5:58AM0.34m | 4:07PM0.30m | 7:51AM0.37m | 9:46AM0.44m | 10:55AM0.51m | ||||||||||
Low Tide | 9:49PM0.10m | 8:28AM0.08m | 10:14PM0.10m | 9:11AM0.13m | 10:39PM0.11m | 10:04AM0.18m | 11:01PM0.11m | 11:32AM0.25m | 11:18PM0.12m | 11:24PM0.12m | 10:08PM0.11m | ||||||||||
— | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | |
5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | 5:32 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 9 | 2 |
Temp °C | 14 | 13 | 13 | 13 | 11 | 12 | 12 | 12 | 14 | 16 | 15 | 14 | 15 | 15 | 14 | 14 | 13 | 14 | 16 | 14 | 13 |
Feels °C | 12 | 9 | 8 | 8 | 7 | 9 | 8 | 9 | 10 | 13 | 12 | 10 | 13 | 12 | 11 | 11 | 9 | 7 | 9 | 7 | 2 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 15 | SSW 17 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 17 | SW 16 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 16 | SW 15 | SW 15 | SW 14 | SW 12 |
1913 | 3597 | 6602 | 4643 | 2850 | 1504 | 928 | 1421 | 1591 | 1983 | 2272 | 4856 | 3334 | 2214 | 1325 | 984 | 2901 | 1907 | 1308 | 825 | 287 | |
Swell 2 Height (m) Direction Period (s) | — | SW 19 | — | — | — | — | — | — | SSE 11 | SE 10 | SW 15 | — | — | — | SW 21 | SW 18 | — | — | — | NW 5 | SW 15 |
— | 303 | — | — | — | — | — | — | 176 | 134 | 1229 | — | — | — | 113 | 1215 | — | — | — | 8 | 301 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SSE 9 | — | — | — | — | — | — | — | — | — | NW 5 |
— | — | — | — | — | — | — | — | — | — | 28 | — | — | — | — | — | — | — | — | — | 4 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 4 | — | — | SE 10 | — | — | — | — | NW 5 | NNW 4 | NNW 4 | NNW 5 | NNE 4 | NE 4 |
— | — | — | — | — | — | — | 9 | — | — | 45 | — | — | — | — | 17 | 36 | 26 | 30 | 11 | 10 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 74 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 74 | 154 | 74 | 0 | 42 | 42 | 44 | 44 | 204 | 322 | 624 |
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.











