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The Box Surf Forecast
/ WA – Margaret River (57 breaks) / Western Australia (159 breaks) /
Surf Forecasts:
The Box surfForecast / WA – Margaret River / Australia
16 Day Weather and Surf, issued 7 pm Saturday 18 Apr 2026 AWSTForecast update in hr min s Forecast update imminent
The Box surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Box sea temperature is
20.6° C
(Which is normal for this time of year)Best Forecast Surf Conditions for The Box this week:
The surf forecast for The Box over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Apr 25) at 11PM. The primary swell is predicted to be 2.0m and 11s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at The Box in the next 16 days are 5.0m 13s and forecast to arrive on Tuesday (Apr 21) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Apr 26) at 2AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 25th Apr) | 6.5ft (2.0m) 11s |
| Best Surf | 2AM (Sun 26th Apr) | 6ft (1.9m) 12s |
| Most Powerful | 8AM (Tue 21st Apr) | 16ft (5.0m) 13s |
Table - best surf conditions forecast for The Box over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Moderate rain (total 14mm), heaviest on Mon night. Very mild (max 19°C on Mon afternoon, min 14°C on Mon night). Winds increasing (light winds from the W on Sat night, gales from the WSW by Mon night). | Days 3-6 Weather Summary Moderate rain (total 11mm), heaviest on Wed night. Very mild (max 19°C on Fri afternoon, min 15°C on Wed night). Winds increasing (light winds from the W on Tue night, strong winds from the NW by Wed night). | |||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Sat 25 | ||||||||||||||||
| 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) (?) | 14 | 14 | 13 | 13 | 15 | 15 | 11 | 13 | 13 | 13 | 13 | 12 | 13 | 12 | 13 | 14 | 14 | 14 | 13 | 12 | 11 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 3167 | 3197 | 3028 | 3193 | 5789 | 3883 | 8116 | 8053 | 6583 | 4112 | 2672 | 2267 | 5863 | 3931 | 4824 | 5978 | 5116 | 3761 | 2576 | 1659 | 1204 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | cross- on | cross- on | on | |
High Tide / height (m) | 10:11AM 0.78 | 10:37AM 0.81 | 11:06AM 0.80 | 11:35AM 0.75 | 11:57AM 0.69 | 11:56AM 0.61 | 3:51PM 0.60 | 11:32AM 0.54 | 5:57PM 0.56 | |||||||||||||
Low Tide / height (m) | 8:32PM 0.07 | 10:39PM 0.03 | 12:02AM 0.00 | 1:00AM 0.00 | 1:45AM 0.03 | 2:33PM 0.60 | 2:20AM 0.08 | 2:20PM 0.52 | ||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Sat 25 | ||||||||||||||||
| Sunrise | - | 6:45 | - | - | 6:45 | - | - | 6:46 | - | - | 6:47 | - | - | 6:48 | - | - | 6:48 | - | - | 6:48 | - | |
| Sunset | - | - | 5:52 | - | - | 5:52 | - | - | 5:50 | - | - | 5:49 | - | - | 5:47 | - | - | 5:46 | - | - | 5:45 | |
 |  | | | | |  |  | | | | |  |  |  |  | |  | | | | ||
Rain (mm) | - | - | - | - | - | - | 13 | 1 | - | - | - | - | 8 | 1 | - | 2 | - | - | - | - | - | |
| Temp. °C | 18 | 17 | 18 | 18 | 18 | 19 | 15 | 15 | 16 | 16 | 17 | 18 | 18 | 17 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | |
| Feels °C (?) | 14 | 14 | 14 | 15 | 13 | 11 | 3 | 9 | 11 | 13 | 10 | 11 | 11 | 11 | 13 | 14 | 14 | 16 | 17 | 18 | 18 | |
- Map Icons:
Break
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 Box 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 Box Surf forecast
The above surf forecast table for The Box provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Box can be found by selecting the local surf guide option on the grey menu. Our The Box 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 Box) 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 Box 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 Box is 92 km (57 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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