Flatrock Surf Break

Lat Long: 34.68° S 135.32° E

Issued: 8 pm 02 Jul 2026 (local time)

Forecast update in  hr  min

Today's Flatrock sea temperature is
15.7° 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 2 Jul 2026:

  • Best quality surf: Friday 3 Jul, 3AM (local time) - 21ft (6.5m), 16s period, SW swell with cross-onshore winds.
  • Most powerful swell: Friday 3 Jul, 3AM (local time) - 21ft (6.5m), 16s period, SW swell with 21,190 kJ wave energy.
  • Next surfable swell (1★+): Friday 3 Jul, 3AM (local time) - 21ft (6.5m), 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 Friday (Jul 03) at 3AM. The primary swell is predicted to be 6.5m and 16s period with a secondary swell of 4.0m and 16s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Flatrock in the next 16 days are 6.5m 16s and forecast to arrive on Friday (Jul 03) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Fri 3rd Jul)21ft (6.5m) 16s
Best Surf 3AM (Fri 3rd Jul)21ft (6.5m) 16s
Most Powerful 3AM (Fri 3rd Jul)21ft (6.5m) 16s

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


Updates in  hr  min  s Forecast update imminent

Alright folks, Rusty here. Let’s have a look at what’s coming down the line for Flatrock (reef break). We got a solid run of surf ahead, but you gotta pick your moments. The start is a bit of a write-off, but once that wind turns friendly, it gets real special, real fast.

The first few days are a no-go. Friday the 3rd is a mess – a massive 20ft SW groundswell with a 15-second period is packing some serious power (combined energy of 22113), but a 25 km/h cross-on wind is chopping it all up and it’s just too big and blown out for this spot. It settles a bit that afternoon, but it’s still ugly and only an 12ft swell with questionable tide. Give it a miss.

Saturday the 4th is where it starts to turn. The swell has dropped to a still-chunky 8ft from the SW, period still long at 14 seconds, but here’s the kicker – the wind swings ESE, becoming a clean cross-off. That morning session is looking clean with moderate wave energy (2448). The afternoon holds similar, a touch smaller at 8ft. This is for the experienced crew only.

Now, Sunday the 5th is the absolute standout of the whole 16 days. Sunday morning we’ve got an exceptional, expert-only setup. An 12ft swell from the SSW, a very long 17-second period, and a solid 25 km/h offshore wind from the ENE. It’s going to be world-class. The combined energy is through the roof (7142). The afternoon stays just as good, a fraction smaller at 10ft but still that clean offshore flow. If you are a confident surfer, this is your window. It will be big, powerful, and perfect.

Monday the 6th is still a solid shout. The swell is easing to 6ft from the SSW, and Monday afternoon the wind goes glassy – zero wind from the north. The swell drops to 5ft with a 14-second period, but with clean, glassy conditions it’ll be a joy for a mid-range board. Good energy (863).

Tuesday the 7th is another glassy day. Both morning and afternoon are looking clean with light winds and a nice 5ft to 6ft SW swell with a long period of 15-16 seconds. Excellent conditions for experienced surfers, just a more manageable size.

The quality stays high through Wednesday the 8th and Thursday the 9th, with clean winds and solid 7ft to 10ft S/SW swells, but look – a big wind change is coming.

Everything goes to rubbish from Friday the 10th through Monday the 14th. Heavy onshore winds, howling gales, and massive, blown-out swell. Combined energy numbers are monstrous (over 26000 on the 13th!), but it’s all onshore and way too big for any kind of fun. Absolute mess.

We get a brief flicker of hope on Wednesday the 15th morning with a massive 18ft SSW swell and clean cross-off winds... but that is legitimately dangerous for all but the most extreme experts, and it’s likely too much for the reef. After that, the last few days of the run into the 18th are mostly blown out or bumpy with cross-shore winds and a muddy energy. Not worth paddling out for.

So to wrap it up: wait for the clean-up on Saturday the 4th, but your real gold is Sunday the 5th. Get on it.

- Rusty

Short Range Forecast

Mostly dry. Very mild (max 15°C on Sat afternoon, min 11°C on Sun afternoon). Winds decreasing (strong winds from the WSW on Thu night, light winds from the S by Fri night).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 13°C on Tue afternoon, min 10°C on Sun night). Wind will be generally light.

Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thu
9
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
!
6
4
4
4
5
8
5
3
3
3
4
4
4
5
6
5
5
4
4
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)
4
SW
16
6
SW
15
3.5
SW
15
3
SSW
14
2.5
SW
14
2.3
SW
14
3
SSW
16
3.5
SSW
17
3
SSW
16
2.5
SSW
16
1.8
SSW
14
1.5
SSW
14
1.5
SSW
17
1.6
SW
15
1.9
SW
16
2.1
SW
19
3
SW
17
3
SW
16
2.5
SW
16
2.2
SW
14
1.9
SW
15
Wave Graph
Metric surfscale
Energy kJ
8061
15101
5860
3500
2448
1979
4161
7142
4701
2850
1370
826
1279
1203
1806
3001
6086
4823
3178
1929
1641
Wind (km/h)
40
WSW
25
SW
15
SW
10
SSW
15
ESE
15
SE
15
E
25
ENE
25
ENE
20
ENE
15
NNE
5
N
10
ENE
5
NNW
5
W
5
NNE
5
N
10
WNW
5
ESE
5
E
5
ESE
Wind State
cross-on
cross-on
cross-on
cross
cross-off
cross-off
off
off
off
cross-off
cross-off
glassy
cross-off
glassy
glassy
glassy
cross
cross-on
off
glassy
off
High Tide
1:43AM0.24m
2:28PM0.57m
2:20AM0.26m
2:56PM0.54m
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
Low Tide
7:13AM0.03m
9:25PM0.11m
7:50AM0.05m
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
cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
cloud
cloud
cloud
cloud
part cloud
clear
clear
part cloud
part cloud
light 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
5:29
5:30
5:30
5:30
5:30
5:31
 mm
2
1
Temp °C
13
13
14
14
14
15
15
13
13
11
11
12
12
12
13
13
12
13
13
12
12
Feels °C
3
7
10
11
10
10
11
8
8
6
8
10
9
10
11
12
10
11
11
11
11
Swell 1
Height (m)
Direction
Period (s)
6
SW
15
3.5
SW
15
3
SSW
14
2.5
SW
14
2.3
SW
14
3
SSW
16
3.5
SSW
17
3
SSW
16
2.5
SSW
16
1.8
SSW
14
1.5
SSW
14
1.5
SSW
17
1.6
SW
15
1.9
SW
16
2.1
SW
19
3
SW
17
3
SW
16
2.5
SW
16
2.2
SW
14
1.9
SW
15
Energy kJ
15101
5860
3500
2448
1979
4161
7142
4701
2850
1370
826
1279
1203
1806
3001
6086
4823
3178
1929
1641
Swell 2
Height (m)
Direction
Period (s)
3
SSW
14
0.2
SSW
19
0.7
S
10
0.6
S
10
1.7
SW
15
1.4
SSW
10
1.4
SSW
10
0.7
SW
20
1.2
SW
18
Energy kJ
3749
37
100
67
1212
388
400
392
936
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
24
0.3
SSE
10
Energy kJ
55
18
Wind waves
Height (m)
Direction
Period (s)
4
SW
16
4
SW
15
Energy kJ
8061
7012
Nearest Offshore or Glassy
Rating
(10 max)
3
4
4
4
4
4
5
8
5
4
4
3
4
4
4
5
5
4
5
4
4
Distance (km)
1339
1120
198
89
0
0
0
0
0
74
42
0
0
0
0
0
74
153
0
0
0
Best forecast wave conditions in Eyre Peninsula
Rating
(10 max)
4
4
4
5
8
5
4
4
3
4
4
4
5
5
4
5
4
4
Best forecast wave conditions in Australia
Rating
(10 max)
6
5
5
9
4
5
5
9
9
5
4
4
9
8
6
6
5
4
6
5
4
Header Global
Rating
(10 max)
5
9
5
9
5
7
5
5
9
7
7
6
9
8
6
6
7
9
7
7
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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