Flatrock Surf Break

Lat Long: 34.68° S 135.32° E

Flatrock Surf Forecast and Surf Report

Issued: 2 am 14 Jul 2026 (local time)

Forecast update in  hr  min

Today's Flatrock sea temperature is
15.3° C
0.4° 

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


Flatrock surf forecast from 13 Jul 2026:

  • Best quality surf: Tuesday 14 Jul, 9AM (local time) - 16ft (5.0m), 16s period, SW swell with cross-onshore winds.
  • Most powerful swell: Tuesday 14 Jul, 9AM (local time) - 16ft (5.0m), 16s period, SW swell with 11,624 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 14 Jul, 9AM (local time) - 16ft (5.0m), 16s 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 Tuesday (Jul 14) at 9AM. The primary swell is predicted to be 5.0m and 16s period with a secondary swell of 3.5m and 16s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Flatrock in the next 16 days are 5.0m 16s and forecast to arrive on Tuesday (Jul 14) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Jul 19) at 12AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Tue 14th Jul)16ft (5.0m) 16s
Best Surf 9AM (Tue 14th Jul)16ft (5.0m) 16s
Most Powerful 9AM (Tue 14th Jul)16ft (5.0m) 16s

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


The Lowdown

G'day, I'm Rusty. Let's have a look at the surf ahead for Flatrock. This is a solid reef break for advanced surfers only, and it's exposed to the SW. The water temp is sitting at 60°, which is about average for this time of year, so nothing unusual there.

Alright, the pattern this week is a classic case of a huge pulse of swell that's just too big to handle, then a slow drop-off with some windows of clean conditions. The standout is going to be Wednesday morning, the 15th of July. We've got a serious 8ft SW groundswell rolling in with a 15-second period, giving it heaps of energy (3093). The wind is a light cross-offshore breeze, which will make for some clean, well-shaped waves. This is definitely the session for experienced surfers to lock in. The crowd factor is "sometimes" so you might have a few others out, but that's the price of a quality wave.

Tuesday morning, the 14th of July, is a write-off for paddling. The swell is a massive 16ft SW with a 16-second period and the combined energy is a mammoth 18661. The wind is just a cross-on moderate breeze, so it's going to be a gnarly, choppy mess. This is more of a kite-surfing day than a paddle-surfing day. Tuesday afternoon is still big at 12ft, but the wind drops to a gentle breeze, though still cross-on. It's marginal.

Wednesday afternoon, the 15th, is a real treat. The swell has dropped to a still-chunky 8ft SW, but the wind goes glassy. Absolutely no wind, just clean, clean lines. It's still big for most, but for the advanced crew, this is a magic window. Thursday morning, the 16th, has a 7ft SW swell with a 14-second period and a clean cross-off breeze, but it's only rated as marginal. The energy is still significant (2822). Friday morning, the 17th, is similar with a 8ft SW swell and a 17-second period, and a clean cross-off breeze, but again, it's marginal.

The weekend from the 18th of July drops off. Saturday sees a 5ft SW swell with a 13-second period, but the wind is cross-shore and choppy. Not great. Sunday, the 19th, has a tiny 3ft SW swell with a very long 19-second period, but it's being blown out by a 30 km/h cross-off wind. The energy is weak (766). It's a mellow day for the beach.

Into the new week, Monday the 20th is a write-off with strong winds and lumpy, choppy conditions. The swell is 7ft, but it's a mess. Tuesday the 21st of July gives us another brief window. The morning is glassy with a 6ft SW swell, and the energy is still moderate (1592). It's clean, but it's a marginal call for the conditions. The afternoon sees a 5ft SW swell with a light offshore wind, but it's also a bit marginal.

After that, things get a bit messy for a stretch. From Wednesday the 22nd through to the end of the month, the wind is mostly onshore or strong cross-shore, making for lousy, lumpy conditions. The swell is small, between 4ft and 6ft, and the energy is weak to moderate. Not worth paddling out.

Then, on the 25th of July, a Saturday, we get a real surprise. The morning is glassy again, with a 5ft SW swell and a 13-second period. The energy is moderate (903). This is looking like a fantastic, clean, uncrowded session. Mark it in the calendar. The rest of the month is a write-off with strong winds and storms.

So, to wrap it up: Wednesday morning, the 15th of July, is the big, clean, powerful day for the advanced crew. And don't forget the glassy session on the morning of the 25th of July for a sneaky, clean run. The rest of the period is either too big, too windy, or too small to get excited about.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 15°C on Wed afternoon, min 13°C on Wed morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 17°C on Sat afternoon, min 13°C on Fri morning). Winds increasing (calm on Fri afternoon, fresh winds from the N by Sun night).

Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
4
5
5
4
3
3
3
3
3
2
3
1
2
1
1
2
2
1
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
5
SW
16
3.5
SW
16
3
SW
15
2.5
SW
15
2.5
SW
14
2.3
SW
14
2.1
SW
14
2.5
SW
16
2.2
SW
16
2.3
SW
17
2.1
SW
16
1.8
SW
14
1.4
SW
13
1.3
SW
13
1.1
SW
13
0.8
SW
19
1.4
SW
18
1.8
SW
16
2.1
SW
15
2.2
SW
14
1.9
SW
13
Wave Graph
Metric surfscale
Energy kJ
11624
5998
4356
3093
2746
2155
1761
3301
2352
2912
2212
1290
704
545
352
446
1227
1707
1835
1983
1247
Wind (km/h)
25
SW
15
SW
5
SE
10
ENE
5
SW
20
NE
20
NNE
15
NNW
20
NNE
20
N
15
NNW
20
NE
25
N
15
NNW
25
NNE
30
N
15
NNW
25
NNE
35
N
25
NNW
10
SW
Wind State
cross-on
cross-on
cross-off
cross-off
glassy
cross-off
cross-off
cross-on
cross-off
cross-off
cross-on
cross-off
cross
cross
cross-off
cross-off
cross
cross-off
cross
cross-on
cross-on
High Tide
1:07PM0.63m
00:57AM0.13m
1:39PM0.62m
1:10AM0.18m
2:06PM0.59m
1:34AM0.23m
2:27PM0.54m
2:06AM0.29m
2:42PM0.49m
2:43AM0.33m
2:54PM0.44m
3:23AM0.36m
3:02PM0.40m
Low Tide
9:13PM0.08m
5:40AM0.03m
9:17PM0.11m
6:27AM0.02m
9:15PM0.13m
7:10AM0.03m
9:13PM0.13m
7:49AM0.05m
9:14PM0.12m
8:26AM0.09m
9:21PM0.09m
9:02AM0.15m
9:34PM0.07m
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:33
7:33
7:33
7:31
7:31
7:31
7:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:35
5:35
5:36
5:36
5:37
5:37
5:37
 mm
Temp °C
14
14
14
14
15
14
14
15
15
13
15
15
14
17
17
15
17
17
15
15
15
Feels °C
9
12
13
13
14
11
9
13
11
7
11
11
9
15
13
9
13
13
9
10
14
  • Map Icons:
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  • 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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