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The Guillotine Surf Forecast
/ WA – Margaret River (57 breaks) / Western Australia (159 breaks) /
The Guillotine surfForecast / WA – Margaret River / Australia
12 Day Weather and Surf, issued 7 pm Friday 09 May 2025 AWST
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 Saturday (May 10) at 5PM. The primary swell is predicted to be 2.5m and 14s period with a secondary swell of 0.2m and 24s. The wind is predicted to be cross-shore 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 (May 15) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Tuesday (May 13) at 8PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sat 10th May) | 8ft (2.5m) 14s |
| Best Surf | 2AM (Thu 15th May) | 10ft (3.0m) 15s |
| Most Powerful | 2AM (Thu 15th May) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for The Guillotine over the next 12 days.
Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wed 21 | |||||||||||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 13 | 16 | 14 | 13 | 13 | 12 | 18 | 16 | 16 | 15 | 13 | 13 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 16 | 14 | 14 | 13 | 13 | 13 | 12 | 14 | 18 | 16 | 16 | 14 | 12 | 11 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 723 | 1150 | 2590 | 1543 | 1269 | 961 | 628 | 1847 | 2982 | 2491 | 1648 | 2042 | 1368 | 1624 | 2553 | 3375 | 3034 | 3320 | 3045 | 2313 | 1710 | 2023 | 1435 | 578 | 1042 | 878 | 1117 | 1299 | 1442 | 2734 | 3924 | 6236 | 7899 | 10439 | 7368 | 4531 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross- off | cross- off | cross | cross- off | cross- on | cross | cross- off | cross- off | cross | cross- off | off | cross- on | off | cross- off | on | off | cross- off | cross- off | off | cross- off | cross- off | off | cross- off | cross | cross | cross | cross- on | cross- on | on | cross- on | cross- on | cross- off | cross |
High Tide / height (m) | 11:06PM 0.59 | 8:24AM 0.88 | 8:30AM 0.94 | 8:43AM 1.00 | 9:02AM 1.06 | 9:26AM 1.11 | 9:52AM 1.14 | 10:22AM 1.15 | 10:54AM 1.13 | 11:27AM 1.07 | 11:55AM 0.98 | 11:04AM 0.87 | 8:37AM 0.81 | 5:45PM 0.76 | ||||||||||||||||||||||
Low Tide / height (m) | 11:41PM 0.59 | 4:49PM 0.44 | 5:15PM 0.41 | 5:45PM 0.39 | 6:21PM 0.39 | 7:04PM 0.39 | 7:55PM 0.40 | 8:56PM 0.41 | 10:01PM 0.43 | 11:00PM 0.45 | 11:49PM 0.48 | 12:28AM 0.52 | 2:12PM 0.73 | |||||||||||||||||||||||
Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wed 21 | |||||||||||||||||||||||||
| Sunrise | - | 7:00 | - | - | 7:01 | - | - | 7:01 | - | - | 7:01 | - | - | 7:03 | - | - | 7:03 | - | - | 7:05 | - | - | 7:05 | - | - | 7:05 | - | - | 7:07 | - | - | 7:07 | - | - | 7:07 | - |
| Sunset | - | - | 5:30 | - | - | 5:30 | - | - | 5:30 | - | - | 5:29 | - | - | 5:28 | - | - | 5:28 | - | - | 5:27 | - | - | 5:25 | - | - | 5:24 | - | - | 5:24 | - | - | 5:23 | - | - | 5:23 |
 |  |  |  | | | | | | | | | | | | | | | | | | | | | | | | | | |  |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3 | 1 | - | - | - | - |
| Temp. °C | 21 | 19 | 20 | 16 | 18 | 21 | 17 | 18 | 19 | 17 | 18 | 22 | 17 | 18 | 22 | 21 | 19 | 21 | 19 | 19 | 21 | 20 | 21 | 22 | 20 | 22 | 22 | 21 | 22 | 22 | 21 | 18 | 17 | 17 | 15 | 17 |
| Feels °C (?) | 21 | 16 | 15 | 12 | 16 | 18 | 13 | 16 | 14 | 13 | 14 | 18 | 13 | 15 | 21 | 17 | 15 | 18 | 16 | 14 | 19 | 19 | 18 | 20 | 20 | 18 | 19 | 19 | 17 | 16 | 15 | 11 | 11 | 12 | 13 | 14 |
Short Range Forecast: Mostly dry. Warm (max 21°C on Fri night, min 14°C on Sat night). Mainly fresh winds. | Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Tue afternoon, min 14°C on Wed morning). Wind will be generally light. | Days 6-9 Weather Summary Mostly dry. Warm (max 22°C on Sat afternoon, min 16°C on Sat night). Wind will be generally light. | Long Range Forecast: Light rain (total 4mm), mostly falling on Mon night. Warm (max 22°C on Mon morning, min 14°C on Wed morning). Winds decreasing (strong winds from the WNW on Mon night, light winds from the ESE by Wed morning). | |||||||||||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
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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