The Guillotine surfForecast / WA – Margaret River / Australia

information circle12 Day Weather and Surf, issued 7 pm Sunday 07 Dec 2025 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
19.9° 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 Wednesday (Dec 10) at 8AM. The primary swell is predicted to be 2.2m and 13s period. 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 2.5m 13s and forecast to arrive on Tuesday (Dec 09) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Saturday (Dec 13) at 5AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Wed 10th Dec)7ft (2.2m) 13s
Best Surf 8AM (Wed 10th Dec)7ft (2.2m) 13s
Most Powerful 5AM (Tue 9th Dec)8ft (2.5m) 13s

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 22°C on Wed afternoon, min 13°C on Mon night). Winds decreasing (fresh winds from the SSW on Tue afternoon, light winds from the ESE by Wed morning).

Days 3-6 Weather Summary Mostly dry. Warm (max 27°C on Sat afternoon, min 12°C on Fri night). Winds decreasing (strong winds from the S on Thu afternoon, light winds from the SSW by Sat morning).

Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sun
14
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
0
0
3
1
0
3
1
0
3
0
0
1
0
0
2
1
0
1
2
0
Swell
Height Map
Wave Height (m) & direction (?)
2.1
SW
1.9
SW
1.9
SW
2.3
SW
2.5
SW
2.3
SW
2.1
SW
2.2
SW
2.1
SW
1.9
SW
1.7
SW
1.6
SW
1.7
SW
1.7
WSW
1.7
WSW
1.5
WSW
1.6
SW
1.4
SW
1.4
SW
1.2
SW
1.3
SW
Period(s) (?)101011131312131313131212121212121211111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)8847388511834204915681471168215651249850706850743756615648503431332382
Wind
(km/h)
15
S
25
SSW
30
SSW
20
SE
20
SSW
35
SSE
15
SE
15
WSW
30
S
15
SE
30
S
40
S
30
SSE
35
S
35
SSE
25
SE
10
SSW
30
SSE
30
E
5
NE
25
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
cross-
off
cross-
on
crosscross-
off
oncross-
on
cross-
off
cross-
on
crosscrosscrosscrosscross-
off
cross-
on
crosscross-
off
cross-
off
cross-
on
High Tide
/ height (m)
10:07PM
0.91
10:28PM
0.85
10:37PM
0.77
10:22PM
0.68
9:31PM
0.60
8:28PM
0.57
7:40PM
0.59
7:17PM
0.63
Low Tide
/ height (m)
9:12AM
0.13
10:08AM
0.18
10:54AM
0.24
11:19AM
0.30
10:58AM
0.35
5:55AM
0.35
4:50AM
0.28
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sun
14
Sunrise-5:01--5:01--5:01--5:01--5:01--5:01--5:01-
Sunset--7:21--7:21--7:22--7:22--7:23--7:23--7:24
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C191919162121162122182222182122172427212930
Feels °C (?)181513111714101918141817121415112122152826
  • 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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