Flatrock surfForecast / SA – Eyre Peninsula / Australia

information circle12 Day Weather and Surf, issued 8 pm Thursday 10 Jul 2025 ACST
Forecast update in 42 min 26 s Forecast update imminent
Flatrock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Flatrock sea temperature is
59.7°F
(Which is normal for this time of year)


Best Forecast Surf Conditions for Flatrock this week:

The surf forecast for Flatrock over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 11) at 6PM. The primary swell is predicted to be 8ft and 14s period with a secondary swell of 2ft and 21s. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Flatrock in the next 12 days are 13ft 19s and forecast to arrive on Thursday (Jul 17) at 9PM. 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+) 6PM (Fri 11th Jul)8ft (2.5m) 14s
Best Surf 9PM (Sun 13th Jul)15ft (4.5m) 14s
Most Powerful 9PM (Thu 17th Jul)13ft (4.0m) 19s

Table - best surf conditions forecast for Flatrock over the next 12 days.

Updates in 42 min 26 s Forecast update imminent
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tue
22
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (ft) & direction (?)
11
SW
10
SW
8
SW
10
SW
10
SW
10
SW
10
SW
10
WSW
10
SW
11
SW
10
SW
8
SW
11
SW
13
WSW
15
WSW
10
SW
10
SW
11
WSW
10
SW
11
SW
11
SW
13
SW
11
SW
11
SW
13
SW
13
SW
13
SW
11
SW
8
SW
6.5
SW
6
SW
11
WSW
18
WSW
16
WSW
13
SW
13
SW
Period(s) (?)141414141717161515141313101313131413161517191717161918171616151516161616
Wave
Graph
(?)Metric surfscale
Energy (?)43483021289134565614524940933503458940382975236229299117101782990372676524346924189731000967877024735310763905060972761295927097159226691786787598174
Wind
(mph)
20
W
15
W
15
W
10
NW
20
N
20
NNW
25
N
20
WSW
25
SW
10
WSW
20
W
10
NW
35
SSW
20
SW
15
WSW
20
W
20
WNW
20
WNW
20
NW
20
NW
25
W
15
WSW
20
WNW
30
WNW
20
W
10
NW
20
NW
15
N
20
N
15
WNW
25
WSW
20
WSW
30
W
20
SW
5
WNW
10
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononcross-
on
crosscross-
on
crossoncross-
on
cross-
on
oncross-
on
cross-
on
cross-
on
onononcross-
on
cross-
on
cross-
on
onononononcross-
on
cross-
on
crosscrosscross-
on
onononcross-
on
oncross-
on
High Tide
/ height (ft)
12:40AM
0.62
1:18PM
2
1:09AM
0.66
1:50PM
2
1:40AM
0.75
2:19PM
1.97
2:12AM
0.82
2:48PM
1.84
2:47AM
0.92
3:13PM
1.67
3:26AM
1.02
3:33PM
1.44
4:11AM
1.08
3:42PM
1.21
5:08AM
1.15
3:22PM
1.02
6:35AM
1.25
9:20AM
1.38
10:54AM
1.57
11:44AM
1.77
Low Tide
/ height (ft)
5:42AM
0.13
8:41PM
0.3
6:22AM
0.1
9:02PM
0.3
7:01AM
0.07
9:22PM
0.3
7:39AM
0.1
9:41PM
0.33
8:17AM
0.2
9:57PM
0.33
8:58AM
0.36
10:10PM
0.36
9:43AM
0.56
10:19PM
0.33
10:42AM
0.79
10:23PM
0.3
10:19PM
0.26
10:04PM
0.23
9:35PM
0.2
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tue
22
Sunrise-7:35--7:33--7:33--7:33--7:33--7:33--7:31--7:31--7:31--7:31--7:30--7:30-
Sunset--5:32--5:32--5:34--5:35--5:35--5:36--5:36--5:37--5:37--5:37--5:38--5:39
rain showerspart cloudrain showersclearclearclearpart cloudrain showerspart cloudlight rainrain showersheavy rainrain showerscloudcloudpart cloudrain showerslight rainrain showersrain showersthunderstorm part cloudlight rainrain showerspart cloudcloudthunderstorm clearcloudcloudpart cloudcloudlight rainrain showerspart cloudcloud
Rain (in)
0.0-0.0----0.0-0.10.00.60.2---0.10.10.00.10.1-0.00.0--0.0-----0.00.0--
Temp. °F616161595761616157545552555557595759575959575959595959575959575555555555
Feels °F (?)525452554350485241454143344145484648464646464545465448484650454136365046

Short Range Forecast: Light rain (total 0.1in), mostly falling on Thu night. Very mild (max 61°F on Thu night, min 54°F on Sun afternoon). Winds increasing (light winds from the WNW on Fri night, strong winds from the NNW by Sat night).

Days 3-6 Weather Summary Heavy rain (total 1.1in), heaviest during Mon afternoon. Very mild (max 59°F on Tue night, min 52°F on Mon afternoon). Mainly near gales.

Days 6-9 Weather Summary Light rain (total 0.4in), mostly falling on Thu afternoon. Very mild (max 59°F on Thu morning, min 55°F on Thu night). Winds decreasing (strong winds from the WNW on Fri afternoon, light winds from the NW by Sat morning).

Long Range Forecast: Light rain (total 0.1in), mostly falling on Mon afternoon. Very mild (max 59°F on Sun morning, min 54°F on Mon morning). Winds decreasing (near gales from the WSW on Mon afternoon, light winds from the WNW by Tue morning).

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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 12 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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