Flatrock Surf Break

Lat Long: 34.68° S 135.32° E

Issued: 2 am 13 Jun 2026 (local time)

Forecast update in  hr  min

Today's Flatrock sea temperature is
16.4° 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 12 Jun 2026:

  • Best quality surf: Friday 19 Jun, 3PM (local time) - 11ft (3.5m), 16s period, SW swell with offshore winds.
  • Most powerful swell: Friday 19 Jun, 9AM (local time) - 11ft (3.5m), 18s period, SW swell with 6,635 kJ wave energy.
  • Next surfable swell (1★+): Saturday 13 Jun, 9PM (local time) - 8ft (2.5m), 15s 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 Saturday (Jun 13) at 9PM. The primary swell is predicted to be 2.5m and 15s 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 3.5m 18s and forecast to arrive on Friday (Jun 19) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Tuesday (Jun 16) at 9PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 13th Jun)8ft (2.5m) 15s
Best Surf 3PM (Fri 19th Jun)11ft (3.5m) 16s
Most Powerful 9AM (Fri 19th Jun)11ft (3.5m) 18s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 27mm), heaviest during Mon afternoon. Very mild (max 17°C on Mon night, min 13°C on Sun morning). Winds increasing (light winds from the ESE on Sat night, fresh winds from the N by Mon night).

Days 4-6 Weather Summary

Moderate rain (total 13mm), heaviest on Tue morning. Very mild (max 18°C on Tue afternoon, min 13°C on Thu night). Winds increasing (light winds from the NNE on Tue afternoon, strong winds from the N by Thu night).

Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
4
3
4
2
2
1
1
2
3
3
1
1
1
1
0
0
0
9
8
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3.5
SW
16
2.5
SW
15
2.5
SW
14
2.3
SW
14
2
SW
13
1.5
SW
13
1.3
SW
12
1.3
SW
12
1.8
SW
18
2.5
SW
16
2.1
SW
15
1.8
SW
14
1.4
SW
13
1.3
SW
13
2.3
W
10
3
W
11
3
W
11
3
WSW
12
3.5
SW
18
3.5
SW
16
3
SW
16
Wave Graph
Metric surfscale
Energy kJ
5722
3194
2667
1858
1325
746
494
479
1880
3330
1968
1289
701
552
958
1985
2092
2767
6635
5677
4417
Wind (km/h)
30
SSW
20
SSW
5
ESE
15
NE
10
NNE
20
NE
25
NNE
25
NNE
30
N
30
N
20
NNE
20
NE
25
NE
30
NNE
20
NNW
30
NNW
25
NW
35
NW
40
N
15
ESE
15
SSW
Wind State
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-on
cross
cross-on
cross-on
cross
off
cross
High Tide
11:36AM0.58m
11:43PM0.14m
12:14PM0.63m
00:01AM0.12m
12:53PM0.65m
00:06AM0.12m
1:30PM0.64m
00:07AM0.14m
2:04PM0.61m
00:22AM0.17m
2:36PM0.56m
00:59AM0.20m
3:02PM0.51m
1:53AM0.23m
Low Tide
7:35PM0.08m
4:10AM0.06m
8:24PM0.07m
4:40AM0.03m
9:10PM0.09m
5:14AM0.00m
9:49PM0.12m
5:51AM-0.01m
10:12PM0.16m
6:30AM-0.00m
10:16PM0.19m
7:09AM0.03m
10:17PM0.19m
part cloud
part cloud
clear
clear
clear
part cloud
light rain
heavy rain
heavy rain
light rain
cloud
light rain
light rain
light rain
light rain
cloud
rain showers
part cloud
mod rain
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:31
7:33
7:33
7:33
7:33
7:33
7:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:23
5:23
5:23
5:23
5:23
5:23
5:23
 mm
3
13
11
2
5
2
1
2
1
8
1
Temp °C
15
15
15
14
15
14
14
16
17
16
18
17
17
16
16
15
15
15
12
13
15
Feels °C
10
9
11
10
12
9
10
12
13
13
15
13
13
10
12
10
10
8
4
10
11
Swell 1
Height (m)
Direction
Period (s)
3.5
SW
16
2.5
SW
15
2.5
SW
14
2.3
SW
14
2
SW
13
1.5
SW
13
1.3
SW
12
1.3
SW
12
1.8
SW
18
2.5
SW
16
2.1
SW
15
1.8
SW
14
1.4
SW
13
1.3
SW
13
1.1
SW
12
0.1
S
24
0.2
SSW
22
0.9
SW
20
1.7
SW
17
4
SW
12
3
SW
11
Energy kJ
5722
3194
2667
1858
1325
746
494
479
1880
3330
1968
1289
701
552
330
11
47
557
1722
4672
2346
Swell 2
Height (m)
Direction
Period (s)
0.2
S
11
0.3
S
10
0.1
S
19
0.6
S
11
0.1
SW
21
0.4
SSW
12
0.6
S
11
0.4
S
11
0.9
NW
7
0.8
WNW
6
0.1
S
10
0.1
S
10
0.1
SW
18
1.7
SW
16
2.1
SW
16
Energy kJ
9
19
7
88
18
45
87
39
82
38
2
2
12
1548
2035
Swell 3
Height (m)
Direction
Period (s)
0.4
S
10
0.4
S
14
0.2
S
15
0.4
SSE
11
0.2
S
10
0.2
S
10
Energy kJ
34
65
17
40
8
8
Wind waves
Height (m)
Direction
Period (s)
3
SW
16
0.5
NE
3
0.6
N
3
1
NNW
4
1.4
NW
6
1.6
NW
8
1
NW
7
0.9
NE
4
1
N
4
1.7
WNW
6
2.3
W
10
3
W
11
3
W
11
3
WSW
12
3.5
SW
18
3.5
SW
16
3
SW
16
Energy kJ
4117
5
8
37
161
300
102
28
35
213
958
1985
2092
2767
6635
5677
4417
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
4
3
3
3
4
4
4
3
3
3
2
4
3
2
8
9
4
Distance (km)
315
692
0
74
0
74
204
44
204
151
154
74
74
78
42
44
151
164
204
0
89
Best forecast wave conditions in Eyre Peninsula
Rating
(10 max)
4
4
4
3
3
4
3
3
3
3
2
4
9
4
Best forecast wave conditions in Australia
Rating
(10 max)
4
6
4
4
5
4
4
4
4
6
5
4
4
4
4
4
5
5
8
9
4
Header Global
Rating
(10 max)
9
5
5
4
4
5
9
4
5
5
5
9
7
4
4
4
4
5
4
7
6
  • 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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