Guillotines Surf Break

Lat Long: 35.51° S 150.40° E

Guillotines Surf Forecast and Surf Report

Issued: 9 am 19 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 19 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 10PM (local time) - 5.5ft (1.7m), 7s period, S swell with glassy winds.
  • Most powerful swell: Wednesday 26 Aug, 4AM (local time) - 6ft (1.8m), 7s period, S swell with 303 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 25 Aug, 1PM (local time) - 3.5ft (1.0m), 7s period with ENE 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 (Aug 25) at 1PM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.1m and 14s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Guillotines in the next 16 days are 1.8m 7s and forecast to arrive on Wednesday (Aug 26) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Tuesday (Aug 25) at 7PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Tue 25th Aug)3.5ft (1.0m) 7s
Best Surf10PM (Tue 25th Aug)5.5ft (1.7m) 7s
Most Powerful 4AM (Wed 26th Aug)6ft (1.8m) 7s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s coming up for Guillotines.

Right off the bat, things are pretty flat and messy for the first week. We’re looking at a long stretch of poor surf conditions from Wednesday the 19th right through to the end of the following week. The swell is tiny, mostly under 3 ft, and the period is short, under 8 seconds, so it’s all wind chop and weak lines. The wind is mostly onshore or cross-shore, so it’s choppy and uninviting. There’s a couple of glassy mornings on the 22nd and 23rd, but the swell is so small – 2 ft to 2 ft – it’s barely a ripple. Water temperature is sitting at 63°, which is about average for this time of year.

The real story starts to build around the 29th of August. Saturday morning sees a jump in size with a 6 ft S swell, moderate combined energy (657), and a clean, cross-off wind from the SW. That’s a solid option, but it gets better. By Sunday the 30th, we’ve got a proper pulse. The swell is 10 ft to 12 ft from the S, with a period of 11 seconds – that’s a long period groundswell. The combined energy is massive (2944 to 4509), so this is strong, powerful surf. The wind is offshore and fresh, so it’s going to be clean and well-shaped. This is expert territory; over 8 ft, it’s for experienced surfers only. The long period means it will be best at this point break, with longer gaps between sets.

Monday the 31st of August keeps the energy going with a 7 ft SSE swell (1029 combined energy) and light offshore winds in the morning. The period stays at 11 seconds, so still a quality groundswell, but size is dropping enough to be a bit more manageable for strong intermediates.

The standout here is the Sunday the 30th of August. That’s the one. Big, clean, powerful S swell with fresh offshore winds at Guillotines. It’s a point break, so it’ll handle that long period beautifully. This is as good as it gets in the 16-day window, but it’s a week and a half out, so keep an eye on the forecast. Monday the 31st morning is also a top pick, with a little less size but still light offshore winds and plenty of energy.

After that, the swell fades quickly through the first days of September, dropping back to ordinary, small conditions.

So, in short – a long, flat, junk start, then a proper South swell hits around the 30th and 31st. That’s your window.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Thu afternoon, min 11°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Mon night. Warm (max 22°C on Mon morning, min 12°C on Sat night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
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
10
1.5
ENE
6
1.3
NE
6
0.6
ENE
6
1.1
NE
6
0.6
ENE
6
0.6
ENE
7
0.5
NE
7
0.4
NE
6
0.5
SE
4
0.3
S
5
0.4
S
8
0.6
S
8
1.2
NE
4
1.1
NE
6
0.6
ENE
6
0.6
ENE
5
0.6
ENE
5
1.6
NE
6
1
ENE
8
1.7
S
7
Wave Graph
Metric surfscale
Energy kJ
58
138
116
24
75
29
32
22
10
8
5
21
41
54
69
22
19
19
202
123
278
Wind (km/h)
15
NNE
25
NE
10
NNW
15
NW
15
NNW
15
WNW
15
W
15
NW
10
SW
0
ESE
15
E
5
NW
5
NNE
25
NE
10
NNW
10
NNW
10
NW
10
N
15
NNW
20
S
5
SW
Wind State
on
on
cross-on
cross
cross-on
cross
cross-off
cross-on
off
glassy
cross-on
glassy
glassy
cross-on
cross-on
cross-on
cross
on
cross-on
cross-off
off
High Tide
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
6:35AM0.98m
6:24PM1.42m
Low Tide
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
11:55AM0.47m
1:13AM0.24m
clear
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
light rain
light rain
light rain
rain showers
<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
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
5:32
 mm
4
1
2
3
Temp °C
18
17
16
19
20
17
20
19
15
16
16
14
17
17
14
22
22
17
18
14
13
Feels °C
12
13
13
16
17
14
19
15
11
13
13
13
13
13
12
19
19
15
16
11
12
  • 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 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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