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Surf Forecasts:

The Guillotine surfForecast / WA – Margaret River / Australia

information circle12 Day Weather and Surf, issued 1 am Friday 13 Mar 2026 AWST
Forecast update in hr  min  s Forecast update imminent
The Guillotine surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Guillotine sea temperature is
20.9° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for The Guillotine this week:

The surf forecast for The Guillotine over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Mar 13) at 2PM. The primary swell is predicted to be 2.1m and 18s period with a secondary swell of 1.4m and 11s. Another secondary swell of 1.6m and 11s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at The Guillotine in the next 12 days are 3.0m 15s and forecast to arrive on Thursday (Mar 19) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Saturday (Mar 14) at 2PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Fri 13th Mar)7ft (2.1m) 18s
Best Surf 5PM (Thu 19th Mar)10ft (3.0m) 15s
Most Powerful 5PM (Thu 19th Mar)10ft (3.0m) 15s

Table - best surf conditions forecast for The Guillotine over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 25°C on Fri afternoon, min 15°C on Fri night). Winds increasing (light winds from the ESE on Fri afternoon, fresh winds from the SSE by Sun afternoon).

Days 3-6 Weather Summary Some drizzle, heaviest during Wed afternoon. Warm (max 31°C on Wed morning, min 15°C on Mon night). Winds decreasing (fresh winds from the SSW on Mon afternoon, calm by Tue morning).

Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
4
4
3
4
1
3
2
1
2
1
0
2
3
0
2
2
2
3
0
!
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.2
SW
2.2
SW
2.2
SW
2.1
SW
1.9
SW
1.9
SW
1.8
SW
1.7
SW
1.7
WSW
1.6
SW
1.5
SW
1.5
SW
1.5
SW
1.5
SW
1.5
SW
1.5
SW
1.5
SW
1.6
SW
2.5
SW
3
SW
2.1
SW
Period(s) (?)181716161514141313131213131313121212161514
Wave
Graph
(?)Metric surfscale
Energy kJ (?)30472927249622031672140712331011932851689734755778710656624747341536141754
Wind
(km/h)
15
ESE
20
SE
20
SE
10
SE
25
SSE
20
SE
10
S
30
SSE
20
SE
15
SSW
30
SSE
25
ESE
0
NNE
25
S
25
E
25
NE
20
NNE
15
N
25
SSW
30
S
25
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		crosscross-
off		cross-
on		crosscross-
off		cross-
on		crosscross-
off		glasscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
on		crosscross
High Tide
/ height (m)
4:35PM
0.80
6:32PM
0.81
7:37PM
0.82
11:07AM
0.60
8:30PM
0.81
10:28AM
0.59
9:20PM
0.78
10:17AM
0.61
10:09PM
0.72
10:19AM
0.65
11:00PM
0.65
Low Tide
/ height (m)
3:25AM
0.27
3:38AM
0.28
3:53AM
0.30
1:52PM
0.58
4:09AM
0.33
2:53PM
0.50
4:22AM
0.37
3:45PM
0.43
4:30AM
0.42
4:37PM
0.37
4:28AM
0.47
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Sunrise6:16--6:16--6:18--6:18--6:20--6:20--6:20--
Sunset-6:40--6:39--6:38--6:37--6:36--6:35--6:32-
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
part cloud
rain showers
clear
part cloud
clear
clear
Rain (mm)
----------------1----
Temp. °C222522242520242419242418262722313125212119
Feels °C (?)182319222316232016221914272318272925231816
  • 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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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 The Guillotine 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.

View detailed surf forecast for The Guillotine at:
surf-forecast.com

Information about the The Guillotine Surf forecast

The above surf forecast table for The Guillotine provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at The Guillotine can be found by selecting the local surf guide option on the grey menu. Our The Guillotine 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 (The Guillotine) 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 The Guillotine 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.

The Guillotine is 79 km (49 miles) from the city of Bunbury. If you plan a holiday in Margaret River, look for hotels and other accommodation in Bunbury. Bunbury has rooms for a wide range of budgets as well as car hire and transport links.

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