Flatrock Surf Break

Lat Long: 34.68° S 135.32° E

Flatrock Surf Forecast and Surf Report

Issued: 8 pm 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Flatrock sea temperature is
15.3° C
0.6° 

Flatrock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Flatrock surf forecast from 7 Jul 2026:

  • Best quality surf: Wednesday 8 Jul, 6AM (local time) - 10ft (3.0m), 18s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 14 Jul, 3AM (local time) - 13ft (4.0m), 16s period, SW swell with 7,881 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 8 Jul, 6AM (local time) - 10ft (3.0m), 18s 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 Wednesday (Jul 08) at 6AM. The primary swell is predicted to be 3.0m and 18s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Flatrock in the next 16 days are 4.0m 16s and forecast to arrive on Tuesday (Jul 14) at 3AM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Wed 8th Jul)10ft (3.0m) 18s
Best Surf 6AM (Wed 8th Jul)10ft (3.0m) 18s
Most Powerful 3AM (Tue 14th Jul)13ft (4.0m) 16s

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


Righto, let’s have a look at what we’ve got. The first few days aren’t much to write home about for most, but there are windows of absolute magic for those who know what they’re doing. Flatrock (reef) is the only spot on the radar in this 16-day stretch, and it’s an advanced-only wave, so the beginners can sit this one out. The water temp is about average for the time of year, nothing out of the ordinary.

Wednesday 8th July starts clean and promising. A solid 10 ft SW groundswell with a long 17-second period rolls in, packing some serious grunt – combined energy is a whopping 4856 (strong to very strong). The morning breeze is a light cross-off from the NE at 6 mph, so it’ll be clean. This is a standout for experienced surfers only; anything over 8 ft is expert territory. The afternoon goes glassy with a light SE breeze and 8 ft SW swell, but the period is still a meaty 16 seconds. Crowds can show up here, but with conditions this good, it’s a justified line-up.

Thursday 9th July holds solid with 6 ft SW swell and 15-second period in the morning under a light cross-off breeze. Still clean, still powerful. The afternoon gets a bit messy as the wind swings cross-on, so the morning window is the pick.

Now, Friday 10th through to Tuesday 14th July is a write-off. Strong onshore winds, rain, and choppy conditions ruin what is otherwise a consistent run of sizeable SW groundswell. Not worth paddling out.

The next real standout hits Wednesday 15th July. The morning sees a clean 10 ft SW groundswell with a 15-second period under a light cross-off breeze from the SSE at just 3 mph. The energy is still strong (3665), and it’s glassy. Another expert-only day but one of the best of the window. Crowds are a possibility, but the quality will have everyone frothing.

Thursday 16th July is the absolute gem of the entire 16-day outlook. The afternoon session delivers an exceptional 8 ft SSW groundswell with a very long 21-second period, combined energy hitting 7977 (very strong). The wind goes glassy from the WNW at 3 mph. For a reef break, that long-period groundswell is a dream – expect long, racy lines, but it’ll be barrelling. This is a top-tier session for experts. Crowds are likely, but you’d be bonkers to miss it. The morning is also very good with 8 ft SW swell and clean conditions.

Friday 17th July starts to degrade with a cross-shore breeze and a moderate chop, so the clean windows are gone. Saturday 18th and Sunday 19th get blown out by strong winds and lumpy seas, even though there’s still some swell. Not worth it.

Monday 20th and Tuesday 21st stay messy with onshore winds and poor conditions. The swell drops off, with period shortening. The combined energy dips below 1400, so weak to moderate. Not recommended.

Wednesday 22nd July shows a glimmer. The afternoon has a 10 ft SW groundswell with a 16-second period and moderate cross-shore wind – combined energy of 7904 is very strong. It’s scored as marginal due to the wind, so if you’re a glutton for punishment and expert, it might offer some unruly power. Thursday 23rd July closes the window with a moderate cross-onshore breeze and messy conditions again.

Overall, the standout sessions are Wednesday 15th July morning and Thursday 16th July afternoon. That afternoon on the 16th is the pick of the bunch – glassy, long-period groundswell, and pumping waves. Everything else is either blown out or for experts only.

Rusty

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri morning. Very mild (max 16°C on Wed afternoon, min 13°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Fri night. Very mild (max 15°C on Fri night, min 12°C on Sat afternoon). Winds decreasing (strong winds from the WSW on Sat morning, moderate winds from the W by Mon afternoon).

Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tue
14
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
6
5
5
4
4
3
1
0
0
0
0
0
0
0
0
0
0
0
4
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
SW
18
3
SW
17
2.5
SW
16
2.1
SW
16
1.8
SW
15
2.2
SW
17
2.2
SW
16
2
SW
15
1.8
SW
15
1.6
SW
14
3
SW
9
3
SW
11
4.5
SW
12
3
SW
12
3
SW
12
3
SW
13
3.5
SW
16
3.5
SSW
17
3.5
SW
17
3
SW
16
3
SW
16
Wave Graph
Metric surfscale
Energy kJ
3984
4856
3587
2214
1325
2684
2266
1776
1452
984
1163
2581
5801
2489
2341
2693
7037
7712
6788
4461
3953
Wind (km/h)
20
ENE
10
NE
5
SE
10
NE
10
NNE
10
NNW
15
NNW
25
NNW
25
WNW
35
WNW
40
SW
40
SW
35
WSW
35
W
35
W
30
WSW
25
WSW
25
W
20
WNW
20
WSW
25
SW
Wind State
off
cross-off
glassy
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
on
on
cross-on
cross-on
High Tide
5:58AM0.34m
4:07PM0.30m
7:51AM0.37m
9:46AM0.44m
10:55AM0.51m
11:46AM0.57m
1:08AM0.10m
12:29PM0.61m
00:54AM0.11m
1:07PM0.63m
Low Tide
11:01PM0.11m
11:32AM0.25m
11:18PM0.12m
11:24PM0.12m
10:08PM0.11m
8:36PM0.07m
8:44PM0.05m
9:00PM0.06m
4:44AM0.06m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
light rain
light rain
rain showers
rain showers
cloud
cloud
rain showers
light rain
rain showers
clear
rain showers
rain showers
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:35
7:35
7:35
7:35
7:33
7:33
7:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:31
5:31
5:32
5:32
5:34
5:35
 mm
1
1
3
2
2
1
2
1
1
1
Temp °C
14
15
16
15
14
15
15
14
15
15
13
13
14
14
15
15
15
15
15
15
15
Feels °C
9
13
15
12
11
14
13
10
10
9
5
4
7
6
8
8
9
10
11
10
10
  • 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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