Guillotines Surf Break

Lat Long: 35.51° S 150.40° E

Guillotines Surf Forecast and Surf Report

Issued: 9 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Guillotines sea temperature is
17.3° C
0.8° 

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


Guillotines surf forecast from 18 Aug 2026:

  • Most powerful swell: Wednesday 19 Aug, 4PM (local time) - 5ft (1.5m), 5s period, ENE swell with 133 kJ wave energy.

Best Forecast Surf Conditions for Guillotines this week:

The most powerful waves expected at Guillotines in the next 16 days are 1.5m 5s and forecast to arrive on Wednesday (Aug 19) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Aug 26) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4PM (Wed 19th Aug)5ft (1.5m) 5s

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


The Lowdown

Alright, Rusty here. Let’s break down what’s on the cards for Guillotines.

This is a tricky outlook for the next two weeks. For a spot that’s already inconsistent, we’re staring down a long, dry spell. The first real suggestion of anything surfable doesn’t pop up until Sunday the 23rd of August, and even then it’s a weak, 2ft SSE swell with a period of 8 seconds, giving a total combined energy of just 95 (weak). The wind is glassy that morning, which is a major positive for clean conditions, but the swell is just too small to get excited about. That’s the only day with a score above zero in the first week and a half.

After that, we’re back to a frustrating run of poor surf conditions right through until Friday the 29th of August. There’s a morning on the 29th with a 3ft S swell, period of 11 seconds, and offshore SSW wind. The combined energy is 256 (moderate), and the wind is clean. That’s the first time the outlook starts to look like a proper surf session, but it’s still only rated as “surfable but ordinary.”

The real standout, and the only day I’d circle on the calendar, is Sunday the 30th of August. The morning is the pick of the entire forecast. We’ve got a solid 10ft SSE swell with a very long period of 17 seconds, and the combined energy is a massive 4335 (very strong). That’s a groundswell with serious power. The wind is light offshore from the SW, so it’ll be clean. That’s expert territory – well over 8ft – so only for the experienced crew. Because it’s a long-period groundswell and Guillotines is a point break, the setup is right for these waves to wrap in and hold their shape. The afternoon drops off a bit with a cross-on wind and smaller 8ft swell.

The Monday the 31st of August still has size (5ft to 5ft from the SSE) but the wind turns onshore and choppy, ruining the quality. The energy drops to 595-610 (moderate). After that, we’re back to small, weak, and messy conditions through the end of the 16-day window.

Water temperature sits at 63°F, with an anomaly of 1°F, which is about average for this time of year. Nothing unusual there.

Bottom line: If you’re an expert and can wait, the morning of Sunday the 30th of August is the only serious window. Everything else is small, weak, or blown out. This is a classic case of an inconsistent point going quiet for long stretches, so don’t hold your breath in between.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Thu morning, min 12°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Sat night. Warm (max 20°C on Mon afternoon, min 11°C on Sat night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
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
0
0
0
0
0
0
0
0
0
0
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)
0.5
E
12
0.5
E
10
1.5
ENE
5
0.8
ENE
6
0.6
NE
6
1.1
NE
6
0.5
ENE
6
0.6
ENE
6
0.5
NE
7
0.4
NE
6
0.3
NE
6
0.2
ENE
6
0.4
S
9
0.5
S
8
0.5
S
8
0.4
S
9
0.4
S
9
0.4
S
9
0.5
S
7
Wave Graph
Metric surfscale
Energy kJ
67
54
133
40
28
75
20
27
22
10
6
3
24
32
31
27
25
25
23
Wind (km/h)
10
NW
15
NNE
25
NE
10
NNW
10
NW
15
NW
10
WNW
10
W
10
NNW
10
WSW
5
SSW
15
E
5
NNW
5
N
25
NE
10
NNW
10
NW
5
ENE
10
WSW
Wind State
cross-on
on
on
cross-on
cross-on
cross
cross
cross-off
cross-on
cross-off
glassy
cross
glassy
on
on
cross-on
cross
glassy
cross-off
High Tide
00:26AM1.04m
12:58PM1.27m
1:24AM0.93m
1:52PM1.25m
2:36AM0.86m
2:54PM1.24m
3:55AM0.85m
3:56PM1.26m
5:03AM0.87m
4:53PM1.30m
5:53AM0.92m
5:42PM1.36m
Low Tide
6:20AM0.42m
7:40PM0.46m
7:03AM0.50m
8:53PM0.48m
7:57AM0.55m
10:06PM0.47m
9:02AM0.58m
11:08PM0.42m
10:09AM0.57m
11:57PM0.36m
11:06AM0.52m
00:37AM0.30m
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
rain showers
clear
clear
clear
clear
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:33
6:33
6:31
6:31
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:28
5:29
5:30
5:30
5:30
5:31
 mm
1
Temp °C
14
19
17
16
20
19
16
18
19
14
16
16
14
19
18
14
19
20
16
Feels °C
12
14
13
13
17
16
14
16
16
11
13
14
13
15
13
11
16
18
13
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Guillotines:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Guillotines surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest