Flatrock Surf Break

Lat Long: 34.68° S 135.32° E

Issued: 8 pm 15 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 15 Jun 2026:

  • Best quality surf: Saturday 20 Jun, 9PM (local time) - 7ft (2.2m), 15s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Friday 19 Jun, 12PM (local time) - 11ft (3.5m), 17s period, SW swell with 7,199 kJ wave energy.
  • Next surfable swell (1★+): Saturday 20 Jun, 9PM (local time) - 7ft (2.2m), 15s 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 Saturday (Jun 20) at 9PM. The primary swell is predicted to be 2.2m and 15s period with a secondary swell of 1.4m and 8s. 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 17s and forecast to arrive on Friday (Jun 19) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Wednesday (Jun 17) at 12AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 20th Jun)7ft (2.2m) 15s
Best Surf 9PM (Sat 20th Jun)7ft (2.2m) 15s
Most Powerful12PM (Fri 19th Jun)11ft (3.5m) 17s

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 49mm), heaviest during Mon night. Very mild (max 17°C on Tue night, min 13°C on Wed night). Winds increasing (moderate winds from the N on Tue night, near gales from the WSW by Thu afternoon).

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Fri morning. Very mild (max 15°C on Fri afternoon, min 13°C on Fri night). Winds decreasing (strong winds from the WSW on Thu night, calm by Sun afternoon).

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Mon
22
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
1
2
1
2
0
0
0
0
0
0
0
0
6
4
3
4
4
4
4
3
1
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)
1.8
SW
18
2.5
SW
16
2.1
SW
15
1.8
SW
14
1.5
SW
13
1.3
SW
13
2.1
WNW
7
2
WNW
8
2.5
W
8
4
SW
13
3.5
SW
12
3.5
SW
17
3.5
SW
16
2.5
SSW
16
2.2
SSW
15
2.1
SSW
15
1.6
SW
14
1.6
SW
14
1.5
SW
15
1.7
SSW
15
1.5
SSW
15
Wave Graph
Metric surfscale
Energy kJ
1925
3330
1968
1363
767
600
462
499
880
5580
3786
7115
5189
3329
2258
1797
992
898
1019
1190
987
Wind (km/h)
35
N
35
N
30
NNW
25
N
40
NNE
30
WNW
45
NW
35
NW
50
WSW
45
SW
30
SW
30
SW
25
S
20
SSE
20
SE
10
E
10
NE
5
NW
15
NNE
15
N
15
NNW
Wind State
cross
cross
cross
cross-off
cross-off
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
off
cross-off
glassy
cross-off
cross
cross-on
High Tide
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
3:23PM0.45m
3:02AM0.25m
3:38PM0.39m
4:33AM0.27m
3:45PM0.35m
Low Tide
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
7:50AM0.08m
10:24PM0.18m
8:32AM0.14m
10:40PM0.16m
9:20AM0.21m
heavy rain
heavy rain
light rain
part cloud
light rain
rain showers
rain showers
rain showers
light rain
light rain
rain showers
rain showers
rain showers
part cloud
clear
cloud
clear
clear
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:33
7:33
7:33
7:33
7:35
7:35
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:23
5:23
5:23
5:23
5:23
5:24
5:24
 mm
21
11
2
5
3
2
2
3
3
3
2
3
Temp °C
16
16
16
17
17
16
15
15
15
14
14
15
14
13
13
13
13
13
12
13
14
Feels °C
11
11
11
13
10
11
6
7
5
4
7
9
10
8
8
9
9
11
8
9
11
Swell 1
Height (m)
Direction
Period (s)
1.8
SW
18
2.5
SW
16
2.1
SW
15
1.8
SW
14
1.5
SW
13
1.3
SW
13
1.1
SW
12
0.9
SW
12
0.6
SSW
22
1.8
SW
18
2.3
SW
17
3.5
SW
16
2.5
SSW
16
2.2
SSW
15
2.1
SSW
15
1.6
SW
14
1.6
SW
14
1.5
SW
15
1.7
SSW
15
1.5
SSW
15
Energy kJ
1925
3330
1968
1363
767
600
335
244
314
1904
3148
5189
3329
2258
1797
992
898
1019
1190
987
Swell 2
Height (m)
Direction
Period (s)
1.2
WSW
12
0.4
S
11
0.4
S
11
0.2
S
11
0.2
S
10
0.1
S
10
0.2
E
6
0.2
SSW
24
1.6
S
9
1.2
S
8
1.5
S
8
1
S
9
0.9
S
9
0.7
S
8
0.9
SSE
8
0.6
SSE
8
Energy kJ
385
38
39
9
8
2
3
56
436
205
324
166
132
66
94
45
Swell 3
Height (m)
Direction
Period (s)
0.7
S
12
0.6
S
11
0.2
S
10
0.1
S
9
Energy kJ
127
87
8
2
Wind waves
Height (m)
Direction
Period (s)
1.4
NW
7
1.7
NW
8
1.6
NW
7
1.1
NW
7
1.1
NNW
4
1.3
NW
6
2.1
WNW
7
2
WNW
8
2.5
W
8
4
SW
13
3.5
SW
12
3.5
SW
17
3
SW
16
1.5
S
9
Energy kJ
176
320
214
116
47
112
462
499
880
5580
3786
7115
4531
328
Nearest Offshore or Glassy
Rating
(10 max)
4
2
5
3
4
2
2
1
2
2
2
1
4
5
4
4
5
4
3
4
4
Distance (km)
204
172
204
294
44
294
319
315
322
822
881
1339
884
42
152
152
0
0
0
0
0
Best forecast wave conditions in Eyre Peninsula
Rating
(10 max)
3
4
5
5
4
3
4
4
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
5
5
4
4
4
4
3
3
4
4
4
6
4
4
5
4
4
5
4
Header Global
Rating
(10 max)
5
5
5
5
4
4
5
5
5
9
6
7
5
4
7
4
7
4
9
6
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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