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Surf Forecasts:

Radar Reef surfForecast / WA – Rottnest Island / Australia

information circle12 Day Weather and Surf, issued 1 pm Monday 20 Oct 2025 AWST
Forecast update in hr  min  s Forecast update imminent
Radar Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Radar Reef sea temperature is
20.0° C
 (Which is 1.3°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Radar Reef this week:

The surf forecast for Radar Reef over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Oct 22) at 8AM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.6m and 5s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Radar Reef in the next 12 days are 2.1m 13s and forecast to arrive on Friday (Oct 24) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Monday (Oct 27) at 8AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Wed 22nd Oct)2.5ft (0.8m) 10s
Best Surf 8AM (Wed 22nd Oct)2.5ft (0.8m) 10s
Most Powerful11AM (Fri 24th Oct)7ft (2.1m) 13s

Table - best surf conditions forecast for Radar Reef over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 8mm), mostly falling on Mon afternoon. Very mild (max 16°C on Mon afternoon, min 13°C on Mon night). Winds decreasing (strong winds from the SSE on Mon night, light winds from the S by Wed morning).

Days 3-6 Weather Summary Some drizzle, heaviest during Thu night. Very mild (max 18°C on Sun morning, min 14°C on Sat night). Winds decreasing (strong winds from the WSW on Fri afternoon, calm by Sun morning).

Mon
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
2
0
1
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.4
W
2.5
SW
1.3
WSW
1.3
WSW
0.8
WSW
0.9
SW
0.5
W
0.6
W
0.8
WSW
0.9
WSW
1.9
WSW
2.1
WSW
2.1
WSW
1.9
WSW
1.6
WSW
1.3
WSW
1.2
WSW
0.8
WSW
1.2
WSW
1.3
WSW
1.2
WSW
Period(s) (?)12111111101018181615141391111111114141313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1522145736638211413716922534636014421488660862581394334236594634491
Wind
(km/h)
40
S
40
S
20
S
30
SSW
20
SSE
5
S
25
SSW
30
S
20
SW
25
WSW
35
WSW
35
W
35
WSW
25
S
15
SSE
25
SSW
25
SSE
5
NE
30
S
30
E
15
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		oncross-
on		oncross-
on		oncross-
on		cross-
on		oncrossglasscross-
on		cross-
off		off
High Tide
/ height (m)
8:43PM
0.65
10:05AM
0.38
9:04PM
0.72
10:55AM
0.38
9:26PM
0.80
9:48PM
0.86
10:08PM
0.92
10:28PM
0.95
10:49PM
0.95
Low Tide
/ height (m)
4:09AM
0.23
1:42PM
0.34
4:52AM
0.24
1:32PM
0.36
5:39AM
0.27
6:37AM
0.32
7:56AM
0.35
9:39AM
0.37
11:07AM
0.36
Mon
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Sunrise--5:31--5:31--5:30--5:28--5:28--5:26--5:26
Sunset6:32--6:32--6:34--6:35--6:36--6:36--6:37--
thunderstorm
rain showers
clear
clear
part cloud
cloud
part cloud
part cloud
clear
clear
rain showers
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
Rain (mm)
53--------1----------
Temp. °C161615161614151515161716171715161618192024
Feels °C (?)1089111011119111112891112121117141420
  • 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 - Rottnest Island

  1. weather stationWind Update Continuing clean conditions at Radar Reef (calm at Swanbourne Automatic Weather Station 29 km from Radar Reef). 2.6m 12s groundswell from the W with a 1.4m 4s local chop from the SSW. 2 swells combining so expect closeout sets.

    1 hour 18 minutes ago Radar Reef
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29 km away, 1 h 18 min ago

4 km/h
E
0.0
20.0
Air / Water (°C)
Please reload the page to see if there are any updates.

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 Radar Reef 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.

View detailed surf forecast for Radar Reef at:
surf-forecast.com

Information about the Radar Reef Surf forecast

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

Radar Reef is 30 km (19 miles) from the very large city of Fremantle. If you plan a holiday in Rottnest Island, look for hotels and other accommodation in Fremantle. Fremantle has rooms for a wide range of budgets as well as cheap car hire and transport links.

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