Flatrock surfForecast / SA – Eyre Peninsula / Australia

information circle16 Day Weather and Surf, issued 8 am Saturday 30 May 2026 ACST
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
17.3° C
(Which is normal for this time of year)

Flatrock surf forecast from 30 May 2026:

  • Best quality surf: Sunday 31 May, 12PM (local time) - 7ft (2.1m), 11s period, SW swell with glassy winds.
  • Most powerful swell: Friday 5 Jun, 3AM (local time) - 13ft (4.0m), 14s period, SW swell with 6,236 kJ wave energy.
  • Next surfable swell (1★+): Sunday 31 May, 12PM (local time) - 7ft (2.1m), 11s period with SW 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 Sunday (May 31) at 12PM. The primary swell is predicted to be 2.1m and 11s period with a secondary swell of 0.2m and 18s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Flatrock in the next 16 days are 4.0m 14s and forecast to arrive on Friday (Jun 05) at 3AM. 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+)12PM (Sun 31st May)7ft (2.1m) 11s
Best Surf12PM (Sun 31st May)7ft (2.1m) 11s
Most Powerful 3AM (Fri 5th Jun)13ft (4.0m) 14s

Table - best surf conditions forecast for Flatrock over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 14mm), heaviest on Sun night. Very mild (max 19°C on Mon morning, min 14°C on Sun night). Winds increasing (calm on Sun morning, gales from the W by Mon night).

Days 4-6 Weather Summary

Moderate rain (total 16mm), heaviest on Thu night. Very mild (max 16°C on Tue morning, min 15°C on Tue afternoon). Mainly near gales.

Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.4
WSW
12
2.4
SW
11
3
SW
11
2.1
SW
11
2.3
SW
13
2.1
SSW
12
1.6
SSW
12
1.3
SSW
12
3.5
WSW
12
4
WSW
13
4
SW
12
3.5
SW
13
2.2
SW
12
1.9
SW
13
1.4
SW
14
1.2
SW
13
2.4
W
8
4
SW
12
4
SW
13
3.5
SW
12
1.7
SW
17
Wave Graph
Metric surfscale
Energy kJ
1580
1467
1942
1034
1811
1299
692
512
3747
4706
3999
4351
1415
1308
661
517
724
4972
5398
3462
1677
Wind (km/h)
35
WSW
35
SW
25
WSW
15
WSW
20
NNW
35
NNE
45
NNW
50
NW
55
NW
50
W
50
WSW
40
WSW
40
W
40
W
35
W
35
WNW
40
WNW
40
W
30
WSW
20
W
15
W
on
cross-on
cross-on
on
cross
cross-off
cross-on
cross-on
cross-on
on
on
on
on
on
on
cross-on
cross-on
on
cross-on
on
on
High Tide
12:00PM0.57m
11:39PM0.23m
12:27PM0.59m
00:01AM0.23m
12:54PM0.60m
00:21AM0.23m
1:23PM0.59m
00:43AM0.23m
1:53PM0.58m
1:08AM0.23m
2:25PM0.56m
1:39AM0.23m
3:00PM0.53m
2:19AM0.22m
Low Tide
7:07PM0.11m
5:05AM0.03m
7:34PM0.11m
5:30AM0.02m
8:00PM0.12m
5:57AM0.01m
8:28PM0.13m
6:24AM0.01m
8:59PM0.14m
6:53AM0.02m
9:35PM0.15m
7:23AM0.04m
10:20PM0.16m
rain showers
clear
cloud
cloud
cloud
rain showers
rain showers
rain showers
rain showers
rain showers
light rain
rain showers
rain showers
rain showers
rain showers
rain showers
thunderstorm
rain showers
cloud
cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:24
7:24
7:26
7:26
7:26
7:28
7:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:25
5:25
5:25
5:24
5:24
5:24
5:24
1
2
1
2
8
1
1
2
1
2
3
1
2
3
1
Temp °C
16
15
15
15
15
18
19
17
16
16
16
16
16
16
16
16
16
16
15
16
17
9
8
8
11
10
9
10
8
5
7
7
9
8
9
9
10
8
8
8
11
14
Swell 1
Height (m)
Direction
Period (s)
0.2
SSE
7
0.3
SW
17
3
SW
11
2.1
SW
11
2.3
SW
13
2.1
SSW
12
1.6
SSW
12
1.3
SSW
12
0.6
SSW
17
0.4
S
10
0.3
S
10
1.7
SSW
11
1.4
SSW
10
1.4
SW
14
1.2
SW
13
0.9
SW
13
0.6
SSE
10
1.6
SW
15
2.1
SW
10
Energy kJ
5
43
1942
1034
1811
1299
692
491
188
32
18
619
410
661
517
241
72
1219
800
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
18
0.1
SE
7
0.1
SE
7
0.2
SSW
18
1.5
SSW
14
1.2
SW
12
0.4
SSW
11
2.1
S
11
0.2
SSW
20
1.1
S
10
0.9
S
10
0.7
SW
17
0.5
SW
20
1.7
SW
17
Energy kJ
13
2
2
31
780
423
39
1026
38
220
145
288
186
1677
Swell 3
Height (m)
Direction
Period (s)
0.3
SW
18
0.2
E
6
1.3
SW
14
0.3
SW
20
0.6
W
10
0.6
S
9
0.1
SW
26
Energy kJ
50
3
648
60
75
62
26
Wind waves
Height (m)
Direction
Period (s)
2.4
WSW
12
2.4
SW
11
2.3
SW
11
1
NNW
4
1.9
NW
7
2.2
WNW
7
3.5
WSW
12
4
WSW
13
4
SW
12
3.5
SW
13
2.2
SW
12
1.9
SW
13
1.7
W
7
1.6
W
7
2.4
W
8
4
SW
12
4
SW
13
3.5
SW
12
Energy kJ
1580
1467
1171
43
394
512
3747
4706
3999
4351
1415
1308
295
279
724
4972
5398
3462
Nearest Offshore or Glassy
Rating
(10 max)
3
2
1
2
4
4
4
3
4
4
2
2
2
1
3
3
3
1
4
1
2
Distance (km)
692
871
872
172
42
204
632
884
624
624
762
871
884
1339
884
692
881
900
1177
1351
162
Best forecast wave conditions in Eyre Peninsula
Rating
(10 max)
2
5
3
Best forecast wave conditions in Australia
Rating
(10 max)
4
3
4
2
9
5
4
4
4
4
4
4
4
2
5
4
3
2
4
5
4
Header Global
Rating
(10 max)
5
5
7
7
6
5
5
4
4
4
7
4
6
5
5
5
4
8
4
9
5
  • 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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