Cow Bombie surfForecast / WA – Margaret River / Australia

information circle12 Day Weather and Surf, issued 1 pm Friday 15 Aug 2025 AWST
Forecast update in hr  min  s Forecast update imminent
Cow Bombie surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cow Bombie sea temperature is
17.8° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Cow Bombie this week:

The surf forecast for Cow Bombie over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 16) at 8AM. The primary swell is predicted to be 2.3m and 11s period with a secondary swell of 1.5m and 11s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Cow Bombie in the next 12 days are 5.5m 16s and forecast to arrive on Thursday (Aug 21) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Sunday (Aug 17) at 11PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Sat 16th Aug)7.5ft (2.3m) 11s
Best Surf 8PM (Thu 21st Aug)13ft (4.0m) 16s
Most Powerful 5AM (Thu 21st Aug)18ft (5.5m) 16s

Table - best surf conditions forecast for Cow Bombie over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 2mm), mostly falling on Mon morning. Very mild (max 17°C on Sun afternoon, min 12°C on Sun morning). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 39mm), heaviest during Mon night. Very mild (max 18°C on Mon night, min 11°C on Wed night). Winds decreasing (near gales from the W on Wed afternoon, light winds from the SSW by Thu morning).

Fri
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
3
SW
2
WSW
2.3
SW
2.4
SW
2.3
SW
2.3
SW
2
SW
2.2
SW
2.1
SW
2
SW
2.1
SW
1.9
WSW
4
W
3.5
W
4.5
WSW
5
WSW
5.5
WSW
5
WSW
4.5
WSW
3.5
SW
3.5
SW
Period(s) (?)121212121212121414171615141314161616161514
Wave
Graph
(?)Metric surfscale
Energy (?)312215461370171015241595171221393092319921972742616441157960111021386711493941558644215
Wind
(km/h)
20
W
10
WSW
5
N
5
SSW
20
E
20
ENE
20
ENE
25
NE
25
N
20
NW
40
NNW
35
WNW
25
W
35
NW
50
WNW
45
WSW
35
SW
20
SSW
15
S
10
E
5
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
glasscross-
on
offcross-
off
offcross-
off
cross-
off
cross-
on
cross-
on
ononcross-
on
ononcross-
on
crosscrossoffcross-
off
High Tide
/ height (m)
1:57AM
0.79
3:18AM
0.84
5:11AM
0.88
6:32AM
0.92
7:30AM
0.95
8:18AM
0.94
8:58AM
0.91
Low Tide
/ height (m)
2:23PM
0.30
3:02PM
0.23
3:40PM
0.19
4:16PM
0.18
4:49PM
0.20
5:18PM
0.24
Fri
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Sunrise--6:58--6:56--6:56--6:54--6:54--6:52--6:52
Sunset5:49--5:50--5:51--5:52--5:52--5:52--5:53--
part cloudpart cloudpart cloudclearclearpart cloudcloudpart cloudrain showerspart cloudheavy rainrain showersrain showersrain showersrain showerslight rainlight rainlight rainrain showerspart cloudpart cloud
Rain (mm)
--------2-1192362421--
Temp. °C141515151414171417171817161515141112121111
Feels °C (?)9111413119129131313111095327778
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for WA - Margaret River

  1. weather stationWind Update The wind is still cross-off at Cow Bombie (light winds from the NNE at Cape Naturaliste Lh 35 km from Cow Bombie). A 2.8m groundswell from the SW

    Cow Bombie
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35 km away, 1 h 22 min ago

19 km/h
NNE
0.0
17.8
Air / Water (°C)
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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 Cow Bombie 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 Cow Bombie Surf forecast

The above surf forecast table for Cow Bombie provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cow Bombie can be found by selecting the local surf guide option on the grey menu. Our Cow Bombie 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 (Cow Bombie) 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 Cow Bombie 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.

Cow Bombie is 83 km (52 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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