Flatrock Surf Break

Lat Long: 34.68° S 135.32° E

Issued: 2 pm 05 Jul 2026 (local time)

Forecast update in  hr  min

Today's Flatrock sea temperature is
15.3° C

Slightly cooler than normal

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


Flatrock surf forecast from 5 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: Sunday 12 Jul, 9PM (local time) - 13ft (4.0m), 15s period, SW swell with 7,233 kJ wave energy.
  • Next surfable swell (1★+): Sunday 5 Jul, 6PM (local time) - 10ft (3.0m), 16s 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 6PM. The primary swell is predicted to be 3.0m and 16s 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 4.0m 15s and forecast to arrive on Sunday (Jul 12) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 10s period and expected on Tuesday (Jul 07) at 9PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Sun 5th Jul)10ft (3.0m) 16s
Best Surf 6AM (Wed 8th Jul)10ft (3.0m) 18s
Most Powerful 9PM (Sun 12th Jul)13ft (4.0m) 15s

Table - best surf conditions forecast for Flatrock over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Alright, Rusty here. Let’s talk about what’s coming our way.

The next couple of weeks are looking pretty lively for the exposed reef at Flatrock. There’s a bit of a wait for the first good session, but once it gets going, there’s some serious energy on the cards. The water temp is sitting at about 60° right now, which is pretty much what you’d expect for this time of year.

The action kicks off on Sunday the 5th. It’s not for the faint-hearted – we’ve got a solid 12ft SSW swell rolling in with a very long 17-second period. That’s a heap of groundswell energy (6602), and with a clean, moderate offshore breeze from the east, it’ll be holding up nicely. This is expert-only territory, though. The swell drops a touch in the afternoon to 10ft, but it’s still clean and powerful.

Monday the 6th is a step down in size but still a good one. You’ve got 6ft SSW swell early, period dropping to 14 seconds, and a light offshore breeze. The energy is still moderate (1504) and conditions are clean. By the afternoon, it’s a bit smaller at 5ft but still lined up and rideable.

Tuesday the 7th brings a shift. Morning has a cross-offshore breeze, but the 6ft SW swell with a 16-second period is clean enough. The afternoon is where it’s at – 6ft SW, 16-second period, and a gentle offshore wind. That’s going to be clean and fun for experienced surfers, with moderate wave energy (1995).

Wednesday the 8th gets a bit tricky. The morning has a solid 10ft SW swell with a 17-second period, but the wind is cross-offshore, so it’ll be clean but a bit lumpy. The crowd factor is worth noting here – this spot can get busy, so expect company. The afternoon turns more to a cross-on, which messes with the shape a bit.

By Thursday the 9th, it’s backing off – 6ft in the morning with clean conditions, then dropping to 5ft in the afternoon but with a very long 18-second period. The cross-on breeze in the arvo will spoil it a little though.

Friday the 10th through Saturday the 11th is a write-off. Strong winds, cross-shore, and messy conditions. The swell is around, but it’s not worth paddling out in that. Take a couple of days off.

Sunday the 12th and Monday the 13th are dominated by strong onshore winds and big, ugly swell – 12ft to 13ft, but it’s blown out. This is more of a kite-surfing show than a paddle session.

Now, Tuesday the 14th is a real standout. Look at this: a 12ft SW swell with a 20-second period (10932 energy) in the morning, and a 10ft with a 19-second period in the afternoon. The wind is cross-shore from the south, so it’ll be lumpy, but the sheer power and size make it a very attractive option for advanced surfers. The energy is massive. This is the best session on offer for the second week, but it’s a long way out so treat it as promising rather than guaranteed.

The rest of the second week sees some size hanging around, but the wind isn’t always cooperating. Wednesday the 15th has 8ft to 10ft SW, but cross-shore winds. Thursday the 16th is similar but with more onshore influence. Friday the 17th is a mess.

However, keep an eye on Saturday the 18th and Sunday the 19th. Saturday morning has a 13ft WSW swell with a 16-second period, and a light breeze making it fairly clean. The energy is extreme (14053). This is a beast for experts. Sunday the 19th has a 12ft SW swell with a 15-second period in the morning and a light offshore from the NE – clean and powerful. The energy is strong (5453). Monday the 20th is similar, with a 12ft SSW swell, 17-second period, and a clean offshore. These days have the potential to be epic, but they’re a good 13-15 days out, so keep your fingers crossed for the forecasts to hold.

Overall, the first few days and the middle of the second week are your best bets. Don’t bother with the windy junk in between.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 16°C on Tue afternoon, min 10°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 9mm), mostly falling on Sat morning. Very mild (max 16°C on Fri afternoon, min 11°C on Sat morning). Winds increasing (light winds from the NE on Wed afternoon, strong winds from the NW by Sat morning).

Sun
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
5
4
4
3
4
3
4
5
4
4
4
2
2
1
1
0
0
0
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)
3
SSW
16
2.5
SSW
16
1.9
SSW
14
1.6
SSW
14
1.6
SSW
17
1.8
SW
16
1.9
SW
16
2.5
SW
18
3
SW
17
2.5
SW
16
2.1
SW
16
1.8
SW
15
1.5
SW
18
2.2
SW
16
1.9
SW
16
1.8
SW
15
1.6
SW
14
1.7
SW
13
1.3
SW
13
3
WSW
9
4
SW
13
Wave Graph
Metric surfscale
Energy kJ
4643
2850
1504
928
1421
1591
1806
4030
4856
3376
2054
1308
1382
2384
1719
1363
1033
1011
563
1350
5210
Wind (km/h)
20
E
20
E
10
ENE
20
ESE
20
E
15
ENE
15
E
20
ENE
15
NNE
15
N
15
NNE
20
N
20
NNW
25
N
25
N
30
NNW
40
NNW
45
NW
65
W
45
W
60
SW
Wind State
off
off
off
off
off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-on
cross-on
cross-on
on
on
cross-on
High Tide
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
11:46AM0.57m
Low Tide
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
8:36PM0.07m
cloud
clear
clear
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
rain showers
cloud
cloud
rain showers
rain showers
rain showers
rain showers
thunderstorm
<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
7:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:30
5:30
5:31
5:31
5:32
5:32
 mm
1
3
5
6
5
3
Temp °C
13
11
12
12
13
14
16
15
14
14
14
14
14
14
14
16
15
15
11
12
12
Feels °C
8
6
10
8
10
11
13
10
10
11
11
9
10
10
8
10
8
6
-2
-1
0
Swell 1
Height (m)
Direction
Period (s)
3
SSW
16
2.5
SSW
16
1.9
SSW
14
1.6
SSW
14
1.6
SSW
17
1.8
SW
16
1.9
SW
16
2.5
SW
18
3
SW
17
2.5
SW
16
2.1
SW
16
1.8
SW
15
1.6
SW
14
2.2
SW
16
1.9
SW
16
1.8
SW
15
1.6
SW
14
1.7
SW
13
1.3
SW
13
Energy kJ
4643
2850
1504
928
1421
1591
1806
4030
4856
3376
2054
1308
1006
2384
1719
1363
1033
1011
563
Swell 2
Height (m)
Direction
Period (s)
0.8
S
11
0.9
SE
10
1.9
SW
14
0.7
SW
20
1.5
SW
18
Energy kJ
143
134
1500
392
1382
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
0.5
E
3
0.7
E
4
0.5
SE
10
0.8
NNW
4
1.1
NW
6
0.6
NW
5
0.8
NNW
4
1.2
NW
5
1
W
6
2.1
NW
6
3
WSW
9
4
SW
13
Energy kJ
6
16
45
17
69
20
18
74
64
373
1350
5210
Nearest Offshore or Glassy
Rating
(10 max)
5
4
4
3
4
3
4
4
4
4
4
4
4
5
4
3
4
4
2
1
2
Distance (km)
0
0
0
0
0
74
0
74
74
74
0
42
42
44
44
151
204
816
884
1067
692
Best forecast wave conditions in Eyre Peninsula
Rating
(10 max)
5
4
4
3
4
3
4
4
4
4
4
4
4
5
4
Best forecast wave conditions in Australia
Rating
(10 max)
9
7
4
4
8
7
4
5
7
5
5
4
6
5
4
4
4
4
2
9
7
Header Global
Rating
(10 max)
9
7
5
6
8
7
5
5
9
8
9
9
5
6
6
5
8
7
4
9
9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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