Guillotines Surf Break

Lat Long: 35.51° S 150.40° E

Guillotines Surf Forecast and Surf Report

Issued: 3 am 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Guillotines sea temperature is
18.0°C
1.3° 

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


Guillotines surf forecast from 14 Sep 2026:

  • Best quality surf: Wednesday 16 Sep, 10PM (local time) - 10ft (3.0m), 11s period, S swell with offshore winds.
  • Most powerful swell: Thursday 17 Sep, 1AM (local time) - 11ft (3.5m), 11s period, S swell with 2,752 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 15 Sep, 7AM (local time) - 2.5ft (0.7m), 7s period with NE swell.

Best Forecast Surf Conditions for Guillotines this week:

The surf forecast for Guillotines over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 7AM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.3m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Guillotines in the next 16 days are 3.5m 11s and forecast to arrive on Thursday (Sep 17) at 1AM. 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 Monday (Sep 21) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Tue 15th Sep)2.5ft (0.7m) 7s
Best Surf10PM (Wed 16th Sep)10ft (3.0m) 11s
Most Powerful 1AM (Thu 17th Sep)11ft (3.5m) 11s

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


The Lowdown

Alright, let’s get into it. The next couple of weeks are a bit of a mixed bag for Guillotines. We’ve got some solid windows of clean surf, but there’s also a lot of junky, onshore slop to sift through. The standout days are going to be those with light offshore winds and solid groundswell.

The Early Window (Sept 14-18)

Honestly, the start of this period is pretty grim. Monday the 14th is a write-off with light cross-onshore winds and a weak 4ft NE windswell. The energy is barely there (277), and it’s just messy. Tuesday the 15th stays average – there’s a small 2ft wave in the morning with clean conditions, but it’s super weak (112) and nothing to get excited about. The afternoon bumps up to 7ft, but the wind swings onshore and it gets poor.

Wednesday the 16th is where things start to shift. We get a fresh offshore breeze from the SSW, and the swell pushes up to 8ft in the morning with a period of 8 seconds. The energy is moderate (722), and it’s clean. The afternoon gets a bit bigger at 8ft but the wind goes cross-offshore, so it’s not as good. Still, Wednesday morning is probably the best of this early stretch.

Thursday the 17th is the real winner here. Morning has a clean 7ft SSW groundswell with a 10-second period, and light offshore winds from the south. The energy is solid (693), and conditions are clean. This is the standout of the first week. The afternoon though, the wind swings east and it gets choppy, so get on it early.

Friday and Saturday (18th & 19th) are back to junk. The swell drops right off, and we get onshore winds. Not worth paddling out.

The Mid-Period Gap

From Saturday afternoon through to the 21st, there’s a big lull. The swell just dies, and the energy readings are in the low double digits. It’s flat, and you’re not surfing.

The Second Pulse (Sept 21-24)

Monday the 21st sees a new SSW pulse arrive. The morning has a 8ft swell with a cross-offshore breeze, but it’s a bit raw and the energy is moderate (639). The afternoon is where it gets good. The swell eases to 5ft, but the period is 9 seconds, and the wind is a light cross-offshore from the SSE. The energy jumps to 706, and it’s clean. This is another strong day, maybe even better than Thursday the 17th due to the lighter winds.

Tuesday the 22nd is a step down. The swell is still there at 6ft, but it’s a long-period SSW (12s), with onshore winds. That’s a no-go. The energy is strong (1164 – that's a big number), but the wind ruins it.

Wednesday the 23rd is a different story. The morning is glassy with a 3ft SSE swell, and it’s clean. The period is a long 12 seconds, which is great for shape. The energy is moderate (309). It’s small, but it’s clean and fun. The afternoon though, the wind goes onshore and the swell gets junky.

Thursday the 24th is just average. Small 3ft and 3ft waves, clean-ish but very ordinary. Not a day to get excited about.

The Final Push (Sept 27-29)

We’ve got a big gap from Friday the 25th to Saturday the 26th – that’s mostly onshores and small, poor surf. Then Sunday the 27th afternoon is where the big stuff starts to show. A 10ft SSE swell rolls in with a 9-second period, and the energy is strong (1411). But it’s cross-shore winds, so it’s likely a messy, challenging day. This is for the experienced crew only if they’re desperate.

Monday the 28th is the big one. The morning has a 10ft S groundswell with a 12-second period and a cross-offshore wind. The energy is huge (3746), and it’s clean. This is the biggest and best day in the whole run. The afternoon drops to 7ft but the period holds at 11 seconds, and the energy is still very strong (1947). The wind stays cross-offshore and it’s clean. This is the standout of the entire forecast – for experts only.

Tuesday the 29th is still solid, but the winds turn onshore. There’s a 8ft SSE swell with a long 12-second period in the morning, but the cross-on wind will make it lumpy. That’s a shame, because the energy is still strong (1348).

So, two real standouts: Thursday the 17th morning and Monday the 28th. If you can only pick one, make it Monday. It’s bigger, cleaner, and more powerful.

Remember, water temp is running a touch warmer than average at around 64°, which is a bonus.

Alright, that’s the picture. Stay sharp and pick your moments.

Rusty

Short Range Forecast

Light rain (total 5mm), mostly falling on Tue afternoon. Warm (max 25°C on Mon morning, min 8°C on Wed night). Winds increasing (light winds from the SSE on Tue morning, fresh winds from the S by Wed morning).

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Sat morning, min 9°C on Thu night). Wind will be generally light.

Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
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)
0
0
0
1
0
2
2
1
4
3
0
0
0
0
1
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
NE
7
1.1
NE
7
0.8
NE
6
0.9
SSE
6
2.2
SSE
7
2.4
S
9
2.3
S
8
2.5
S
8
3.5
S
11
2
SSE
10
1.6
SSE
9
1.3
SSE
9
1.1
SSE
9
0.9
SSE
9
0.7
S
9
0.6
S
8
0.5
S
8
0.3
SSE
9
0.2
S
8
0.2
S
11
0.8
SSE
5
Wave Graph
Metric surfscale
Energy kJ
135
99
45
56
410
935
716
948
2752
683
397
232
197
135
74
51
33
15
5
9
28
Wind (km/h)
10
NNW
10
N
15
NW
10
SSE
25
S
25
SW
30
SSW
30
S
20
SW
10
S
15
E
10
NW
5
ENE
15
NE
10
W
5
NNE
20
NE
10
WNW
15
WNW
20
NW
10
W
Wind State
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
off
cross-off
cross-off
off
cross-on
cross-on
cross-on
cross-on
cross-off
on
on
cross
cross
cross
cross-off
High Tide
10:02AM1.40m
10:23PM1.20m
10:40AM1.38m
11:07PM1.08m
11:20AM1.34m
11:56PM0.98m
12:05PM1.29m
00:54AM0.90m
1:00PM1.24m
2:08AM0.85m
2:05PM1.21m
3:28AM0.86m
3:14PM1.22m
Low Tide
4:22PM0.25m
4:18AM0.32m
5:10PM0.30m
4:52AM0.41m
6:02PM0.37m
5:28AM0.49m
7:01PM0.42m
6:13AM0.56m
8:11PM0.46m
7:13AM0.61m
9:24PM0.45m
8:28AM0.62m
10:26PM0.42m
part cloud
clear
part cloud
rain showers
light rain
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
5:58
5:58
5:56
5:54
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:47
5:47
5:49
5:50
5:51
5:51
5:52
 mm
1
3
1
Temp °C
25
24
19
17
12
11
13
13
11
13
12
11
17
16
15
26
24
19
29
29
26
Feels °C
22
22
17
14
7
6
4
5
4
9
8
9
13
13
12
20
18
15
23
24
22
  • 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 Guillotines Surf forecast

The above surf forecast table for Guillotines provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Guillotines can be found by selecting the local surf guide option on the grey menu. Our Guillotines 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 (Guillotines) 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 Guillotines 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 South Coast - New South Wales? If you are looking for accommodation near Guillotines, camping, hotels and holiday cottages in South Coast - New South Wales, consider staying in Nowra which is 71 km (44 miles) away.

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