Surf Forecasts:
Radar Reef surf forecast from 12 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 2PM (local time) - 6ft (1.9m), 14s period, WSW swell with glassy winds.
- Most powerful swell: Tuesday 18 Aug, 5PM (local time) - 11ft (3.5m), 16s period, WSW swell with 6,124 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 2PM (local time) - 6ft (1.9m), 14s period with WSW swell.
Best Forecast Surf Conditions for Radar Reef this week:
The surf forecast for Radar Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 12) at 2PM. The primary swell is predicted to be 1.9m and 14s period with a secondary swell of 0.1m and 24s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Radar Reef in the next 16 days are 3.5m 16s and forecast to arrive on Tuesday (Aug 18) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Monday (Aug 17) at 11AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Wed 12th Aug) | 6ft (1.9m) 14s |
| Best Surf | 2PM (Wed 12th Aug) | 6ft (1.9m) 14s |
| Most Powerful | 5PM (Tue 18th Aug) | 11ft (3.5m) 16s |
Table - best surf conditions forecast for Radar Reef over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 18°C on Fri afternoon, min 12°C on Wed morning). Winds increasing (calm on Wed afternoon, fresh winds from the NE by Fri night). | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Mon afternoon. Warm (max 23°C on Sun afternoon, min 14°C on Sat morning). Winds increasing (light winds from the WSW on Sat afternoon, near gales from the W by Mon afternoon). | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 15 | WSW 16 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 15 | WSW 14 | WSW 15 | WSW 16 | W 8 | W 12 | WSW 15 | WSW 16 | WSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1670 | 1370 | 1279 | 1787 | 2230 | 2027 | 1904 | 1743 | 1319 | 1099 | 975 | 892 | 1712 | 1644 | 1955 | 1991 | 1773 | 2184 | 5387 | 6124 | 4185 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | cross-off | cross-off | cross-on | cross-off | off | cross-on | off | off | on | off | off | off | cross-off | cross | cross-on | on | cross-on | cross | cross-off |
High Tide | 9:10AM1.03m | 00:46AM0.54m | 9:53AM0.91m | 00:08AM0.49m | 10:29AM0.77m | 11:52PM0.48m | 10:55AM0.63m | 11:45PM0.50m | 11:04AM0.51m | 11:55PM0.54m | 10:40AM0.44m | 00:20AM0.61m | 00:56AM0.69m | ||||||||
Low Tide | 5:54PM0.33m | 1:37AM0.54m | 6:14PM0.34m | 3:01AM0.46m | 6:17PM0.35m | 4:01AM0.41m | 5:48PM0.36m | 4:57AM0.38m | 5:03PM0.35m | 5:59AM0.40m | 4:32PM0.32m | 4:15PM0.31m | |||||||||
 | |  | | | | | | | | | | |  |  |  |  |  |  | | | |
 | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 | 2 | — | — | — |
Temp °C | 12 | 14 | 15 | 12 | 14 | 15 | 13 | 18 | 17 | 16 | 20 | 20 | 18 | 23 | 22 | 18 | 18 | 15 | 15 | 16 | 16 |
Feels °C | 10 | 13 | 12 | 10 | 10 | 11 | 9 | 15 | 13 | 10 | 18 | 17 | 11 | 19 | 19 | 14 | 8 | 5 | 10 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 15 | WSW 16 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 15 | WSW 14 | WSW 15 | WSW 16 | — | W 12 | WSW 15 | WSW 16 | WSW 16 |
| kJ | 1670 | 1370 | 1279 | 1787 | 2230 | 2027 | 1904 | 1743 | 1319 | 1099 | 975 | 892 | 1712 | 1644 | 1955 | 1991 | — | 2184 | 5387 | 6124 | 4185 |
Swell 2 Height (m) Direction Period (s) | — | SW 24 | WSW 21 | — | — | — | — | — | — | — | — | — | — | W 20 | — | — | — | WSW 13 | — | — | — |
| kJ | — | 22 | 151 | — | — | — | — | — | — | — | — | — | — | 200 | — | — | — | 1631 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 17 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 586 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NE 3 | NNE 3 | — | — | NNE 4 | N 5 | — | NW 4 | W 8 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 5 | 4 | — | — | 16 | 7 | — | 39 | 1773 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 1 | 0 | 0 | 63 | 1 | 0 | 1 | 35 | 121 | 27 | 0 | 35 | 0 | 317 | 362 | 1650 | 938 | 27 | 6 | 118 |
Best forecast wave conditions in Rottnest Island | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 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.
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 16 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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