Flatrock surfForecast / SA – Eyre Peninsula / Australia

information circle12 Day Weather and Surf, issued 3 pm Saturday 06 Dec 2025 ACDT
Forecast update in hr  min  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
17.7° C
(Which is slightly warmer than usual)


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 Sunday (Dec 07) at 10AM. The primary swell is predicted to be 2.1m and 13s period with a secondary swell of 0.4m and 18s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Flatrock in the next 12 days are 2.5m 13s and forecast to arrive on Saturday (Dec 06) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Tuesday (Dec 09) at 7PM.

Wave TypeTime (ACDT) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sun 7th Dec)7ft (2.1m) 13s
Best Surf10AM (Sun 7th Dec)7ft (2.1m) 13s
Most Powerful10PM (Sat 6th Dec)8ft (2.5m) 13s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 18°C on Mon morning, min 13°C on Sat night). Winds increasing (calm on Sun morning, fresh winds from the SSE by Tue morning).

Days 3-6 Weather Summary Mostly dry. Warm (max 24°C on Thu morning, min 14°C on Wed night). Winds decreasing (fresh winds from the ESE on Wed night, light winds from the ESE by Thu night).

Sat
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
2
4
1
1
0
1
3
1
2
3
2
3
0
2
1
3
3
2
1
0
Swell
Height Map
Wave Height (m) & direction (?)
2.3
SW
2.5
SW
2.1
SW
1.9
SW
1.6
SW
1.4
SW
1.7
SW
1.7
SW
1.5
SW
2.3
SW
2.3
SSW
2.2
SSW
2.2
SSW
1.6
SW
1.4
SW
1.4
SW
1.4
SW
1.4
SSW
1.3
SSW
1.1
SW
1.7
SSW
Period(s) (?)131313121211111211141314131212131313131212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)18762174149410256444417267655341962190518131538742567629651649587386839
Wind
(km/h)
30
SSW
20
S
0
W
20
WSW
15
WNW
20
NW
10
W
15
SSE
25
SE
35
SSE
30
ESE
25
SE
25
SE
35
ESE
25
ESE
30
SE
25
E
10
S
25
SSE
20
ESE
35
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
crossglassoncross-
on
cross-
on
oncross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
offcross-
off
offcross-
off
cross-
off
cross-
off
cross-
on
High Tide
/ height (m)
2:30AM
0.65
12:54PM
0.17
3:01AM
0.61
1:03PM
0.20
3:29AM
0.56
1:31PM
0.23
3:55AM
0.50
2:13PM
0.24
4:16AM
0.44
3:16PM
0.24
4:32AM
0.38
5:28PM
0.23
4:29AM
0.33
Low Tide
/ height (m)
6:28PM
-0.03
10:22AM
0.15
6:58PM
-0.04
10:43AM
0.19
7:31PM
-0.02
10:55AM
0.21
8:03PM
0.01
11:08AM
0.21
8:33PM
0.07
11:29AM
0.21
8:58PM
0.14
12:07PM
0.19
8:52PM
0.22
1:09PM
0.17
Sat
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Sunrise--6:07--6:07--6:07--6:07--6:07--6:07--6:09
Sunset8:30--8:30--8:31--8:31--8:32--8:34--8:35--
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
mod rain
Rain (mm)
--------------------6
Temp. °C151414151518181717171516181624242024252718
Feels °C (?)88111112151615141191214919181422202413
  • 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 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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