Flatrock surfForecast / SA – Eyre Peninsula / Australia

information circle12 Day Weather and Surf, issued 9 am Monday 12 Jan 2026 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
19.3° 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 (Jan 18) at 4AM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 0.8m and 7s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Flatrock in the next 12 days are 2.3m 14s and forecast to arrive on Monday (Jan 19) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Friday (Jan 16) at 7PM.

Wave TypeTime (ACDT) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sun 18th Jan)3.5ft (1.1m) 14s
Best Surf 4AM (Sun 18th Jan)3.5ft (1.1m) 14s
Most Powerful 4PM (Mon 19th Jan)7.5ft (2.3m) 14s

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 Tue afternoon, min 15°C on Mon night). Winds increasing (light winds from the SSE on Mon morning, strong winds from the SSE by Wed night).

Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Sat morning, min 15°C on Thu night). Winds decreasing (strong winds from the SSE on Thu morning, light winds from the E by Sat night).

Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
2
2
3
2
1
1
0
0
1
1
1
1
1
1
2
2
3
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
SW
0.9
SW
0.9
SW
0.8
SSW
1.7
SSW
1.7
SSW
1.7
SSW
2.1
SSW
2.1
S
1.1
SW
1.1
SW
0.9
SSW
1.1
SW
1.1
SW
1.1
SW
1
SW
1.1
SW
1
SW
1
SW
1.3
SSW
1.3
WSW
Period(s) (?)101010171614141413121212141413131414161514
Wave
Graph
(?)Metric surfscale
Energy kJ (?)16016016038113561111101915641538353373243529507444336514395471725672
Wind
(km/h)
20
SSE
35
SSE
30
SE
25
SSE
35
SSE
30
ESE
25
SSE
35
SSE
35
SSE
35
SSE
40
SSE
30
SE
25
SE
35
SSE
35
SE
25
SE
35
SSE
20
ESE
10
N
15
SSE
25
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
on
High Tide
/ height (m)
8:45PM
0.35
11:35PM
0.40
12:17AM
0.45
1:44PM
0.14
12:49AM
0.50
1:17PM
0.16
1:19AM
0.55
1:30PM
0.18
1:48AM
0.58
1:48PM
0.20
2:14AM
0.61
Low Tide
/ height (m)
11:31AM
0.09
11:46AM
0.10
11:42AM
0.11
9:55AM
0.12
3:13PM
0.13
9:09AM
0.11
5:14PM
0.11
9:04AM
0.10
6:10PM
0.08
9:12AM
0.08
6:51PM
0.05
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Sunrise6:26--6:28--6:28--6:30--6:31--6:31--6:33--
Sunset-8:45--8:45--8:44--8:44--8:44--8:44--8:43-
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
cloud
part cloud
Rain (mm)
---------------------
Temp. °C161615171816171716161616171717202019252726
Feels °C (?)131010121312131199911121213161517242523
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Flatrock surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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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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