The Guillotine surfForecast / WA – Margaret River / Australia

information circle12 Day Weather and Surf, issued 7 am Saturday 03 Jan 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
20.8° C
(Which is slightly warmer than usual)


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 Sunday (Jan 04) at 5AM. The primary swell is predicted to be 1.5m and 12s period with a secondary swell of 0.8m and 6s. Another secondary swell of 0.9m and 5s 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 Tuesday (Jan 06) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Saturday (Jan 10) at 5AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 4th Jan)5ft (1.5m) 12s
Best Surf 8PM (Tue 6th Jan)10ft (3.0m) 14s
Most Powerful 2PM (Tue 6th Jan)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

Short Range Forecast Mostly dry. Warm (max 27°C on Sat morning, min 15°C on Sat night). Winds increasing (light winds from the SSE on Sun morning, strong winds from the SSW by Mon afternoon).

Days 3-6 Weather Summary Mostly dry. Warm (max 21°C on Wed afternoon, min 14°C on Tue night). Mainly strong winds.

Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
2
0
0
1
0
0
1
0
0
!
0
0
3
0
0
1
1
0
1
Swell
Height Map
Wave Height (m) & direction (?)
1.6
SW
1.5
SW
1.5
SW
1.6
SW
1.3
SW
1.4
SW
1.7
SW
1.7
SW
2
SW
3
SW
3
SW
3
SW
3
SW
2.5
SW
2.5
SW
2.2
SW
1.8
SW
2.4
SW
2.2
SW
2.5
SSW
2.1
SSW
Period(s) (?)121212111112111111161514141312121211101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7616246035744145517267029184240396638053048224119541336882136310261299788
Wind
(km/h)
25
S
35
S
20
SE
20
SW
35
SSW
20
SSE
30
SSW
35
SSW
20
SSE
35
SSW
35
S
15
SE
30
SSW
35
S
15
SE
30
SSW
35
SSW
25
SSE
30
SSE
40
SSE
30
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
crosscross-
off
cross-
on
cross-
on
crosscross-
on
cross-
on
crosscross-
on
cross-
on
cross-
off
cross-
on
cross-
on
cross-
off
cross-
on
cross-
on
crosscrosscrosscross-
off
High Tide
/ height (m)
9:17PM
0.93
9:49PM
0.89
10:16PM
0.82
10:33PM
0.74
10:34PM
0.64
10:00PM
0.56
8:22PM
0.51
Low Tide
/ height (m)
6:59AM
0.06
7:35AM
0.12
8:02AM
0.18
8:13AM
0.25
7:50AM
0.30
6:47AM
0.32
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Sunrise5:13--5:13--5:15--5:16--5:16--5:16--5:18--
Sunset-7:34--7:34--7:34--7:34--7:34--7:34--7:34-
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
Rain (mm)
---------------------
Temp. °C272619202119212118192017202117191918192016
Feels °C (?)23201419171617161413131115141113131212128
  • 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 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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