Sleaford Bay (Wreck Beach) Surf Break

Lat Long: 34.86° S 135.76° E

Sleaford Bay (Wreck Beach) Surf Forecast and Surf Report

Issued: 2 pm 15 Sep 2026 (local time)

Forecast update in  hr  min

Today's Sleaford Bay (Wreck Beach) sea temperature is
15.4°C
0.8° 

Sleaford Bay (Wreck Beach) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Sleaford Bay (Wreck Beach) surf forecast from 15 Sep 2026:

  • Best quality surf: Wednesday 16 Sep, 9AM (local time) - 11ft (3.5m), 15s period, SW swell with cross-shore winds.
  • Most powerful swell: Wednesday 16 Sep, 9AM (local time) - 11ft (3.5m), 15s period, SW swell with 5,402 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 16 Sep, 9AM (local time) - 11ft (3.5m), 15s period with SW swell.

Best Forecast Surf Conditions for Sleaford Bay (Wreck Beach) this week:

The surf forecast for Sleaford Bay (Wreck Beach) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 16) at 9AM. The primary swell is predicted to be 3.5m and 15s period with a secondary swell of 0.6m and 4s. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Sleaford Bay (Wreck Beach) in the next 16 days are 3.5m 15s and forecast to arrive on Wednesday (Sep 16) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Saturday (Sep 19) at 9PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Wed 16th Sep)11ft (3.5m) 15s
Best Surf 9AM (Wed 16th Sep)11ft (3.5m) 15s
Most Powerful 9AM (Wed 16th Sep)11ft (3.5m) 15s

Table - best surf conditions forecast for Sleaford Bay (Wreck Beach) over the next 16 days.


The Lowdown

Right, let’s talk some real surf talk. Water temp is sitting at 60°F, which is pretty much normal for this stretch of the year – no surprises there. But the swell story over the next couple of weeks is a wild ride, and you gotta pick your moments.

Right now, we’re looking at a solid 12ft of SW swell, but the wind is cross-on from the SSE at 15 mph, so it’s all chopped up and ugly. Not the kind of day you’re getting excited about. The energy is strong, clocking in at 4981, but it’s wasted on poor conditions.

Wednesday bumps up to 12ft with a 15-second period, but the wind is still cross-shore. It’s cleaner in the morning but gets worse by the afternoon. This one’s too big and too messy for most – you’d need to be a proper charger just to think about it.

Thursday eases off to 8ft in the morning, then 7ft in the arvo, with cross-off winds from the ENE. It’s cleaner, but it’s only marginal – you’d get some fun ones but you’d be working for them.

Friday morning is the first real gem. The swell drops to 6ft but the period is long at 17 seconds – proper groundswell. Offshore winds from the NNW at 15 mph keep it clean, and that longer period gives it some real push and shape. The energy is moderate at 1984, but with that offshore wind and decent size, this is the pick of the first week. Not huge, but quality.

Saturday backs right off – 4ft in the morning, 3ft in the arvo – and while the wind is still offshore, it’s just small and weak. You’d be on a log, and even then it’s a bit desperate.

Sunday picks back up a bit – 4ft in the morning, but the wind swings cross-shore and it’s lumpy. By the afternoon, the swell bumps to 7ft but the period drops to 11 seconds and it’s messy. Not worth it.

Monday is rough – 8ft in the morning with onshore winds, then 8ft with cross-on winds in the arvo. It’s all over the shop and not surfable.

Then we hit the big one. Tuesday the 22nd – this is when it gets serious. The morning has 12ft of SSW swell with a 15-second period, but the wind is howling cross-shore from the east at 19 mph, so it’s lumpy and ugly. The afternoon cleans up a bit with 10ft and cross-off winds, but it’s still way over head – this is expert territory only, and even then, it’s a beast.

Wednesday the 23rd is where it all comes together. The morning is glassy – literally zero wind – and there’s 7ft of SW swell at 15 seconds. That’s clean, powerful, and pushing through. This is the standout of the whole run. The energy is moderate at 2061, but with glassy conditions and that long-period swell, this is the one you circle on the calendar. It’s still a solid size, so you need to know what you’re doing, but it’s the best conditions on offer.

After that, it fades again. Thursday the 24th is only 6ft to 7ft with cross-on winds, and Friday the 25th is smaller again with offshore winds but only 5ft – not bad, but nothing special.

Then the last weekend kicks back up. Saturday the 26th sees a serious pulse – 15ft in the morning, 13ft in the arvo – but the wind is all over the place, and with 18-second periods, this is just enormous. The energy readings are off the charts at 11678 and 19438, but this is way too big for anyone but the most seasoned chargers, and even then, it’s sketchy. Sunday the 27th drops to 12ft but the wind goes straight onshore, so it’s unsurfable garbage.

From Monday the 28th, it just gets worse – 10ft down to 5ft by Tuesday the 29th, but the wind is onshore and the conditions are poor across the board. Wednesday the 30th is more of the same – 6ft and 6ft with cross-on winds – no good.

So, if you’re looking at the whole 16 days, there are only two real windows worth getting wet for: Friday the 18th with that offshore wind and long-period swell, and Wednesday the 23rd with the glassy morning and solid 7ft. Both are for experienced surfers, but they’re the cleanest, most powerful waves on offer. Everything else is either too big, too messy, or too small to bother with.

Stay patient, watch the wind, and hit that Wednesday the 23rd if you can. That’s the one.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Fri morning, min 9°C on Wed night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Sat afternoon, min 13°C on Sun night). Winds increasing (light winds from the NW on Fri afternoon, fresh winds from the WNW by Sat night).

Tue
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
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
!
!
!
3
3
3
4
2
3
2
1
3
1
1
2
2
0
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3.5
SW
14
3.5
SW
15
3.5
SW
15
3.5
SW
15
3
SSW
15
2.5
SSW
14
2.1
SSW
14
2.1
SSW
16
1.9
SW
17
1.5
SW
15
1.1
SW
14
1.1
SW
13
0.9
SW
13
1.6
WSW
12
1.3
SW
16
2.2
WSW
11
2.4
SW
14
2.3
SW
13
2.5
SW
13
3.5
SSW
15
Wave Graph
Metric surfscale
Energy kJ
4981
4949
5402
5051
4057
2378
1614
2347
1984
1046
514
392
265
730
823
1155
2252
1626
2570
5208
Wind (km/h)
25
SSE
25
ESE
25
ESE
20
ESE
20
E
20
ENE
15
ENE
15
NNE
25
NNW
25
WNW
15
N
25
NNW
25
NNW
30
N
25
W
25
WSW
15
WSW
15
S
25
SSE
25
ESE
Wind State
cross-on
cross-on
cross
cross-on
cross
cross-off
cross-off
cross-off
off
cross-off
off
off
cross-off
off
cross
cross
cross-on
on
cross-on
cross
High Tide
3:41PM0.76m
4:15AM1.26m
3:55PM0.68m
4:38AM1.23m
4:02PM0.60m
5:03AM1.16m
3:56PM0.53m
5:31AM1.06m
2:54PM0.50m
6:07AM0.93m
10:24AM0.82m
Low Tide
9:34PM-0.03m
10:52AM0.16m
9:46PM-0.01m
11:23AM0.25m
9:54PM0.03m
11:59AM0.36m
9:56PM0.07m
1:07PM0.48m
9:44PM0.11m
9:06PM0.13m
8:23PM0.11m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:24
6:22
6:22
6:20
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:16
6:17
6:19
6:19
6:20
6:21
6:21
 mm
Temp °C
12
10
11
11
11
12
13
16
20
20
21
24
26
25
15
15
15
14
13
13
Feels °C
6
4
6
7
8
8
9
10
13
14
17
17
20
20
10
10
12
11
8
8
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  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Sleaford Bay (Wreck Beach) Surf forecast

The above surf forecast table for Sleaford Bay (Wreck Beach) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sleaford Bay (Wreck Beach) can be found by selecting the local surf guide option on the grey menu. Our Sleaford Bay (Wreck Beach) 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 (Sleaford Bay (Wreck Beach)) 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 Sleaford Bay (Wreck Beach) 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 Sleaford Bay, camping, hotels and holiday cottages in Eyre Peninsula, consider staying in Port Lincoln which is 25 km (16 miles) away.

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