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Surf Forecasts:

Flatrock surfForecast / SA – Eyre Peninsula / Australia

information circle12 Day Weather and Surf, issued 3 am Saturday 17 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
18.2° C
 (Which is slightly cooler than normal)

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 1AM. The primary swell is predicted to be 1.2m and 14s period with a secondary swell of 0.9m and 7s. Another secondary swell of 1.3m and 8s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Flatrock in the next 12 days are 2.4m 17s and forecast to arrive on Wednesday (Jan 21) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Thursday (Jan 22) at 1AM.

Wave TypeTime (ACDT) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sun 18th Jan)4ft (1.2m) 14s
Best Surf 1AM (Sun 18th Jan)4ft (1.2m) 14s
Most Powerful 4AM (Wed 21st Jan)8ft (2.4m) 17s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 23°C on Sun morning, min 17°C on Sat night). Winds increasing (light winds from the SE on Sun morning, strong winds from the SE by Mon night).

Days 3-6 Weather Summary Mostly dry. Warm (max 24°C on Thu night, min 16°C on Tue night). Winds decreasing (fresh winds from the SSE on Tue afternoon, light winds from the ESE by Thu night).

Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
1
3
3
1
2
1
0
0
1
1
3
3
1
2
2
1
3
0
0
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1
SW
1.1
SW
1.2
SW
1.2
SW
1.2
SW
1.1
SW
1.6
SSW
1.7
SSW
1.3
SW
1
SW
1.2
SW
2.1
SW
2.3
SW
2.1
SW
1.7
SW
1.5
SW
1.3
SW
1.2
SW
1.1
SW
0.9
SW
1.1
SW
Period(s) (?)131414151414131313122118161615141413131316
Wave
Graph
(?)Metric surfscale
Energy kJ (?)32651461464060650790598752730012522845289521071229886647488352269644
Wind
(km/h)
25
SE
35
SSE
20
ESE
5
SE
25
S
20
SSE
30
SSW
35
SSW
35
SSE
30
SE
35
SSE
35
SSE
30
SSE
35
SSE
35
SE
20
SE
30
SSE
15
ESE
15
N
20
WSW
20
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		offcross-
off		crosscross-
off		crosscross-
on		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offcrosscross-
on		off
High Tide
/ height (m)
1:30PM
0.18
1:48AM
0.58
1:48PM
0.20
2:14AM
0.61
2:10PM
0.23
2:40AM
0.62
2:34PM
0.27
3:05AM
0.61
3:01PM
0.30
3:28AM
0.58
3:30PM
0.33
3:50AM
0.53
4:02PM
0.36
4:08AM
0.47
Low Tide
/ height (m)
6:10PM
0.08
9:12AM
0.08
6:51PM
0.05
9:24AM
0.08
7:27PM
0.02
9:38AM
0.07
8:02PM
0.01
9:53AM
0.07
8:35PM
0.01
10:08AM
0.07
9:09PM
0.03
10:22AM
0.07
9:44PM
0.07
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Sunrise6:31--6:33--6:33--6:35--6:35--6:37--6:37--
Sunset-8:44--8:43--8:43--8:42--8:42--8:42--8:40-
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C191918232219181819222017181817222224323432
Feels °C (?)161416211917151314181512131312191822272927
  • 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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FREE! Surf-Forecast.com widget for your website

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.

View detailed surf forecast for Flatrock at:
surf-forecast.com

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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