The Box Surf Break

Lat Long: 33.96° S 114.98° E

The Box Surf Forecast and Surf Report

Issued: 7 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Box sea temperature is
19.3° C
2.0° 

The Box surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


The Box surf forecast from 18 Aug 2026:

  • Best quality surf: Friday 21 Aug, 2AM (local time) - 13ft (4.0m), 15s period, SW swell with offshore winds.
  • Most powerful swell: Wednesday 19 Aug, 5PM (local time) - 16ft (5.0m), 16s period, WSW swell with 11,166 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 2AM (local time) - 13ft (4.0m), 15s period with SW swell.

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 Friday (Aug 21) at 2AM. The primary swell is predicted to be 4.0m and 15s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at The Box in the next 16 days are 5.0m 16s and forecast to arrive on Wednesday (Aug 19) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 21st Aug)13ft (4.0m) 15s
Best Surf 2AM (Fri 21st Aug)13ft (4.0m) 15s
Most Powerful 5PM (Wed 19th Aug)16ft (5.0m) 16s

Table - best surf conditions forecast for The Box over the next 16 days.


Short Range Forecast

Light rain (total 3mm), mostly falling on Tue night. Very mild (max 16°C on Tue night, min 13°C on Thu night). Winds decreasing (fresh winds from the WNW on Tue night, calm by Fri morning).

Days 5-7 Weather Summary

Some drizzle, heaviest during Sat night. Very mild (max 17°C on Mon afternoon, min 10°C on Mon morning). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
6
6
6
6
6
7
6
5
6
3
2
1
3
3
5
3
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
4
WSW
15
5
WSW
15
5
WSW
16
4.5
WSW
16
4
WSW
16
4
SW
16
4
SW
15
3.5
SW
15
4
SW
15
3
SW
14
3
SW
16
2.5
SW
16
2.5
SW
14
3
SW
13
2.5
SW
13
3
SW
15
2.5
WSW
14
2.4
SW
12
1.9
WSW
13
Wave Graph
Metric surfscale
Energy kJ
6655
9848
11166
10064
7197
7196
6851
5785
5973
3810
4123
3283
2506
2843
2345
4462
2651
1679
1226
Wind (km/h)
30
WNW
20
SW
20
WSW
20
W
10
WSW
15
SW
5
ESE
0
W
10
SSW
10
SE
20
SSW
20
SSW
20
SSW
20
S
20
S
10
E
15
N
25
NW
25
WNW
Wind State
on
cross-on
cross-on
on
cross-on
cross-on
off
glassy
cross-on
cross-off
cross
cross-on
cross-on
cross
cross
off
cross
cross-on
cross-on
High Tide
00:34AM0.58m
1:16AM0.61m
4:00AM0.61m
5:40AM0.64m
6:41AM0.67m
7:27AM0.70m
Low Tide
3:12PM0.16m
3:26PM0.12m
3:44PM0.10m
4:03PM0.08m
4:23PM0.07m
4:42PM0.08m
rain showers
rain showers
cloud
cloud
cloud
clear
clear
clear
clear
clear
part cloud
cloud
rain showers
clear
clear
part cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:54
6:52
6:52
6:50
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:51
5:52
5:52
5:53
5:53
5:54
5:55
 mm
2
1
1
Temp °C
16
16
15
15
15
15
15
14
15
14
15
14
16
14
15
13
13
17
16
Feels °C
10
10
11
10
11
12
13
13
13
11
11
10
12
10
10
10
9
12
12
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
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Quick surf report for The Box:

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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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