Flatrock Surf Break

Lat Long: 34.68° S 135.32° E

Issued: 2 pm 04 Jul 2026 (local time)

Forecast update in  hr  min

Today's Flatrock sea temperature is
15.5° C

Normal for this time of year

Flatrock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


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 TypeTime (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 Forecast

Mostly dry. Very mild (max 14°C on Sat afternoon, min 10°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly 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
Rating
(10 max)
4
4
7
5
4
4
3
4
4
4
4
4
4
4
3
1
1
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.2
SSW
14
3
SSW
15
3.5
SSW
17
3
SSW
16
2.5
SSW
16
1.9
SSW
14
1.6
SSW
14
1.6
SSW
17
1.8
SW
16
2
SW
16
1.9
SW
18
3
SW
17
2.5
SW
16
2.1
SW
16
1.8
SW
15
1.4
SW
18
2.4
SW
16
2.1
SW
15
1.8
SW
15
1.5
SW
14
0.8
SW
15
Wave Graph
Metric surfscale
Energy kJ
1913
3597
6602
4643
2850
1504
928
1421
1591
1983
2272
4856
3334
2214
1325
1215
2901
1907
1308
825
301
Wind (km/h)
10
SSE
25
E
20
ENE
25
E
20
ENE
15
ENE
20
ESE
20
E
20
ENE
10
ENE
15
ENE
15
NE
10
N
10
NNE
15
NNE
20
NNW
25
N
30
N
35
NNW
35
W
50
WSW
Wind State
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
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
light rain
mod rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:35
7:35
7:35
7:35
7:35
7:35
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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)
2.2
SSW
14
3
SSW
15
3.5
SSW
17
3
SSW
16
2.5
SSW
16
1.9
SSW
14
1.6
SSW
14
1.6
SSW
17
1.8
SW
16
2
SW
16
1.9
SW
18
3
SW
17
2.5
SW
16
2.1
SW
16
1.8
SW
15
1.6
SW
14
2.4
SW
16
2.1
SW
15
1.8
SW
15
1.5
SW
14
1
SW
12
Energy kJ
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)
0.6
SW
19
0.9
SSE
11
0.9
SE
10
1.7
SW
15
0.4
SW
21
1.4
SW
18
0.4
NW
5
0.8
SW
15
Energy kJ
303
176
134
1229
113
1215
8
301
Swell 3
Height (m)
Direction
Period (s)
0.4
SSE
9
0.3
NW
5
Energy kJ
28
4
Wind waves
Height (m)
Direction
Period (s)
0.6
E
4
0.5
SE
10
0.6
NW
5
0.9
NNW
4
0.9
NNW
4
0.8
NNW
5
0.7
NNE
4
0.6
NE
4
Energy kJ
9
45
17
36
26
30
11
10
Nearest Offshore or Glassy
Rating
(10 max)
4
4
7
5
4
4
3
4
4
4
5
5
4
4
4
4
5
4
4
3
4
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
Rating
(10 max)
4
4
7
5
4
4
3
4
4
4
5
4
4
4
4
4
5
4
Best forecast wave conditions in Australia
Rating
(10 max)
5
4
9
9
6
4
4
8
7
4
5
8
5
5
4
4
5
5
4
4
4
Header Global
Rating
(10 max)
5
5
5
9
6
5
6
8
7
5
5
9
8
9
9
5
7
5
4
8
4
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Flatrock:

join our community of surf reporters

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 locationNearest